PITTSBURGH CONFERENCE ON ANALYTICAL CHEMISTRY AND

PITTSBURGH CONFERENCE ON ANALYTICAL CHEMISTRY A N D APPLIED S P E C T R O S C O P Y AND

EXPOSITION OF MODERN LABORATORY EQUIPMENT T H E

1 7 T H PITTSBURGH

CONFERENCE

on

Analytical

Chemistry and Applied Spectroscopy and Exposition of Modern Laboratory E q u i p m e n t will be held February 21 to 25 at the Pcnn-Sheraton Hotel. T h e conference is jointly sponsored b y t h e Analytical Chemistry Group of the Pittsburgh Section of the American Chemical Society and the Spectroscopy Society of Pittsburgh. Registration is open t o all interested persons. T h e fee is $6 (students and wives, $1). Registration badges are required for admission to all sessions of t h e conference. A pocket t a b will be provided free of charge to persons who wish to visit the exposition only. Housing accommodations should be arranged through Laszlo Pasztor, Pittsburgh Conference Housing Committee, c / o Pittsburgh Convention and Visitors Bureau, 411 Seventh Ave., Pittsburgh, P a . 15219. Requests must be received before Feb. 8. T h e technical program consists of 30 technical sessions a n d the presentation of 260 scientific papers covering a broad range of analytical topics. T h e exposition features exhibits from over 175 companies. E x position hours a r e : Tuesday, 9:00 a.m. to 8:30 p.m. Wednesday, 9:00 a.m. to 6:00 p.m. T h u r s d a y , 12:00 Noon to 8:30 p.m. F r i d a y , 9:00 a.m. to 12:00 Noon T h e Coblentz Society Symposium will discuss " T h e Professional Infrared Spectroscopist" a t t h e meeting T h u r s d a y morning. T h e meeting will also include presentation of the Coblentz Society Award and t h e Award winner's address. 72 A

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ANALYTICAL CHEMISTRY

A.S.T.M. Committees E-13 on Absorption Spectroscopy and E-2 on Emission Spectroscopy will hold meetings during the week of the conference. The Spectroscopy Society of Pittsburgh 1966 Award will be presented T h u r s d a y afternoon to Professor R. C. Lord of t h e Massachusetts Institute of Technology who will speak on "Recent Developments in F a r - I n f r a red Spectroscopy." Technical tours are planned t o the following: P i t t s burgh P l a t e Glass Research Center; Jones & Laughlin Steel Corp. G r a h a m Research Laboratories; Mellon I n stitute; Gulf Research & Development Co.; U. S. B u reau of Mines Pittsburgh Coal Research Center; H a r bison-Walker Refractories Co. Research Center; Alcoa Research Laboratories; U. S. Steel Corp. Research Laboratories, Duquesne Brewery; Koppers Co. R e search Center; and Fisher Scientific Co. An employment bureau will be maintained a t t h e conference. Advance registration is urged. Forms m a y be obtained by writing t o M . Katz, United States Steel Corp., Applied Research Laboratory, Monroeville, P a . 15146. Planned social activities for t h e week include a social hour, Sunday night, Feb. 20, conference mixers on Tuesday and T h u r s d a y evenings, a visit to Buhl P l a n e tarium M o n d a y evening, a n d a dinner a n d theater p a r t y on Wednesday evening. I n addition, a nontechnical program has been planned for t h e ladies. The complete program of the technical sessions and a listing of the exposition exhibitors and their products are included in t h e following pages.

PITTSBURGH

CONFERENCE OFFICIALS 1966 BOARD OF DIRECTORS President: JAMES P. McKAVENEY, Crucible Steel Co. of America Vice-President: FRANK E. DICKSON, Mellon Institute Treasurer: RICHARD T. OLIVER, Alu minum Company of America Assistant Treasurer: JOSEPH R. RYAN, Harbison-Walker Refractories Co. Chairman (Society for Analytical Chemists of Pittsburgh): RICHARD Ε. ΗΕΙΝ, Mellon Institute Chairman-Elect (Society for Analytical Chemists of Pittsburgh): JOHN O. FROHLIGER, Duquesne University Chairman (Spectroscopy Society of Pittsburgh): WILLIAM M. HICKAM, Westinghouse Electric Corp. Chairman-Elect (Spectroscopy Society of Pittsburgh): ROBERT ROBL, Alu minum Company of America Secretary: MISS G. JANE HARTER, Westinghouse Electric Corp.

CONFERENCE COMMITTEES Exposition Chairman: ROBERT MAIN IER, Koppers Co. Exposition Chairman-Elect: WILLIAM A. STRAUB, U. S. Steel Corp. Program Chairman: RICHARD E. HEIN, Mellon Institute Program Chairman-Elect: GERALD L. CARLSON, Mellon Institute

SUBCOMMITTEES

J. P. McKAVENEY

F. E. DICKSON

R. T. OLIVER

R. E. HEIN

W. M. HICKAM

R. MAINIER

Printing: J. W. PRACHT, Fisher Sci entific Co., E. R. BOWER, Fisher Sci entific Co. ACTIVITIES Chairman: ALEXANDER J. KAVOULAKIS, Shenango, Inc. Chairman-Elect: EARL N. ROPER, Weirton Steel Co.

REGISTRATION Chairman: HARRY FRACEK, Fisher Scientific Co. Chairman-Elect: ROBERT E. WITKOWSKI, Mellon Institute

ARRANGEMENTS Chairman: OWEN H. KRIEGE, West inghouse Electric Corp. Chairman-Elect: JOHN J. BURKE, Mellon Institute

PROGRAM Chemical Analyses, Inorganic: L. L. LEWIS, U. S. Steel Corp. Chemical Analyses, Organic: Ε. Μ. ARNETT, University of Pittsburgh Gas Chromatography Co-chairmen: D. H. LICHTENFELS, Gulf Oil Corp., D. P. MANKA, J. & L. Steel Corp. Emission Spectroscopy: R. M. JA COBS, Westinghouse-Bettis NMR & Molecular Spectroscopy Cochairmen: C. E. GRIFFIN, Univer sity of Pittsburgh, A. G. SHARKEY, JR., U. S. Bureau of Mines X-Ray Spectroscopy: C. F. GLICK, U. S. Steel Corp.

Chairman-Elect: CHARLES J. McCAFFERTY, Pittsburgh Plate Glass Co.

EMPLOYMENT Chairman: MAX KATZ, U. S. Steel Corp. Chairman-Elect: JOHN J. McGOVERN, Mellon Institute HOUSING Chairman: LASZLO C. PASZTOR, J. & L. Steel Corp. Chairman-Elect: JACK K. HURWITZ, U. S. Steel Corp. PUBLICITY Chairman: JOSEPH A. FELDMAN, Du quesne University

ASSISTANT CHAIRMEN Exposition: ALFRED E. WEBER, Callery Chemical Co. Activities: GEORGE L. VASSILAROS, Crucible Steel Co. of America, C. ELLEN GONTER, Pittsburgh Chem. Div., U. S. Steel Corp. Arrangements: JOHN 0 . FROHLIGER, Duquesne University Registration: T. J. GARLAND, Gulf Oil Corp. ADVISORY President 1964: FRANCIS P. BYRNE, Westinghouse Electric Corp. President 1965: BRUCE M. LaRUE, National Steel Corp. International Liaison: R. K. SCOTT, Harbison-Walker Refractories Co.

VOL. 38, NO. 2, FEBRUARY

1966

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PITTSBURGH

CONFERENCE ON

ANALYTICAL APPLIED

A.S.T.M.—COMMITTEE E-13 ABSORPTION SPECTROSCOPY Advisory Group (Open to All Conferees) Sunday, February 2 0 — 8 : 0 0 P.M.

ABSORPTION

AND

SPECTROSCOPY

PROGRAM

A.S.T.M.—COMMITTEE

CHEMISTRY

E-13

SPECTROSCOPY

Subcommittee and Task Group Meetings (Open to All Conferees) Monday, February 2 1 — 9 : 0 0 A.M. MONDAY, FEBRUARY 2 1 GAS CHROMATOGRAPHY—INSTRUMENTAL Monday Morning—Ball Room Karl J. Bombaugh, Presiding

8:30 Improvements in Gas Chromatography Design. J. Peters, R. H. Kolloff, A. J. Martin, F&M Scientific Div. of Hewlett-Packard Co., Route 41 & Starr Road, Avondale, Pa. 19311.

8:50 Techniques for Improving Quantitative Gas Chromatography Data. Jack M. Gill, Frank T. Tao, Wilkens Instrument & Research, Inc., P. O. Box 313, Walnut Creek, Calif. 94597. 9:10 Techniques for Improving Process Control With Chromatography. T. A. Gray, W. R. Haden, Leeds & Northrup Co., Philadelphia, Pa. 19144. 9:30 Preparative Scale Gas Chromatography—Improved Performance of Large Diameter Columns. Samuel F. Spencer, Paul Kucharski, F&M Scientific Div. of HewlettPackard Co., Route 41 & Starr Road, Avondale, Pa. 19311. 10:10 High Resolution, High Pressure Preparative Gas Chromatography. R. H. Kolloff, L. Mikkelsen, S. F. Spencer, F&M Scientific Div. of Hewlett-Packard Co., Route 41 & Starr Road, Avondale, Pa. 19311. 10:30 A Gas Chromatographic Readout System. J. G. Karohl, Perkin-Elmer Corp., Norwalk, Conn. 06852. 10:50 A Log Linear Electrometer for Gas Chromatography. Ronald D. Moeller, Alfred W. Hartz, Victoreen Instrument Co., 10101 Woodland Ave., Cleveland, Ohio. 44104. 11:10 A Slope Sensing Device for Automatic Activation of a Gas Chromatographic Fraction Collector. J. C. Bartlet, Food & Drug Directorate, Tunney's Pasture, Ottawa, Canada. 11:30 Determination of Volatiles in Solid and Viscous Materials by Pyrolysis Gas Chromatography. D. D. Rice, J. M. Trowell, Hercules Powder Company, Bacchus Works, Magna, Utah. 84044.

CONDENSED PROGRAM A.M.

MONDAY FEB. 21

Gas Chromatography—Instrumental Spectrophotometric and Thermal Methods of Analysis Instruments for Chemical Analysis

Gas Chromatography—Applications Electroanalytical Chemistry and Chemical Separations Symposium on Electron Spin Resonance Electron Probe Symposium NMR and ESR Spectroscopy

Gas Chromatography—Pyrolysis Symposium Iron and Steel Analysis—Chemical Methods Symposium on Analytical Techniques of the Future

Gas Chromatography—Detectors Determination of Gases and Nonmetallic Inclusions in Metals Symposium on NMR Spectra of Polymeric Materials

Gas Chromatography—Column Parameters Emission and Fluorescent Spectroscopy Symposium on Magnetic Optical Rotatory Dispersion

New Analytical Instrumentation and Techniques Symposium on Combined Gas Chromatographic-Mass Spectrometric Techniques Symposium on Nuclear Magnetic Double Resonance Nuclear Methods

Coblentz Society Symposium Symposium—Atomic Absorption Spectroscopy Mass Spectrometry—General Molecular Spectroscopy—Circular Dichroism

Vibrational Spectra and Structure—SSP Award Symposium—Atomic Absorption Spectroscopy Symposium on Fast Reaction Kinetics

Infrared and Raman Instrumentation and Techniques X-Ray Spectroscopy—Instrumentation Molecular Spectrometry UV and Visible

X-Ray Spectroscopy—Methods Absorption Spectrometry—UV, IR, Microwave Infrared Spectroscopy—Analytical ApplicaIMS

TUESDAY FEB. 22

WEDNESDAY FEB. 23

THURSDAY FEB. 24

FRIDAY FEB. 25

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PITTSBURGH CONFERENCE SPECTROPHOTOMETRIC AND THERMAL METHODS OF ANALYSIS Monday Morning—Pittsburgh Room

ΤΞΕ FLOW SHEET

M. A. Bambenek, Presiding 8:30 Spectrophotometric Determination of Thorium. J. C. Guyon, B. L. Madison, Univ. of Missouri Dept. of Chem istry, Columbia, Mo. 65202. 8:50 Spectrophotometric Determination of Zirconium. C. C. Clowers, J. C. Guyon, Univ. of Missouri Dept. of Chem istry, Columbia, Mo. 65202. 9:10 Identification of Nitriles by a "Second Derivative" Method. G. A. Pearse, Jr., Le Moyne College Dept. of Chemistry, Syracuse, Ν. Υ. 13214. 9:30 A Rapid Determination of Nitrites and Nitrates in Atmospheric Suspended Particulates. G. B. Morgan, E. C. Tabor, R. A. Taft Sanitary Engineering Center U. S. Public Health Service, 4676 Columbia Parkway, Cincinnati, Ohio. 10:10 The Influence of Experimental Variables on the Thermogravimetric Determination of Activation Energies. H. G. Wiedemann, A. V. Tets, Mettler Instrument Corp., Princeton, N. J. r H. P. Vaughan, Mettler Instruments AG., Zurich, Switzerland. 10:30 Quantitative Analysis of Binary Eutectic Systems by Differential Thermal Analysis. M. J. Visser, W. H. Wallace, Upjohn Co., Kalamazoo, Mich. 10:50 Detection and Quantitation of a Eutectic Forming Impurity in Crystalline Mixtures by Differential Thermal Analysis. W. H. Wallace, M. J . Visser, Upjohn Co., Kala mazoo, Mich. 11:10 A New Effluent Gas Analyzer (EGA)—Accessory for the Fisher DTA. A. Wist, Fisher Scientific Co., 711 Forbes Ave., Pittsburgh, Pa. 15219. 11:30 Low Cost Thermobalance. S. Jarmell, Fisher Scien tific Co., 711 Forbes Ave., Pittsburgh, Pa. 15219. 11:50 Differential Thermal Analysis at Sub-Ambient Tem peratures. P. D. Garn, Univ. of Akron, Akron, Ohio. 44304. INSTRUMENTS FOR CHEMICAL ANALYSIS Monday Morning—Terrace Room H. A. Sweeney, Presiding 9:00 An Evaluation of Detectors for Column Chroma tography Systems. S. W. Leslie, A. Mrkvicka, Packard In strument Co., 2200 Warrenville Road, Downers Grove, III. 60515. 9:20 An Automatic Karl Fischer Titrator. L. Luft, Luft In struments, Inc., Old Winter St., Lincoln, Mass. 01773. 9:40 Moisture Determination by Thermochemical Titration Using Karl Fischer Reagent. J. C. Wasilewski, C. D. Miller, American Instrument Co., Inc., 8030 Georgia Ave., Silver Spring, Md. 20910. 10:20 Accuracies of Moisture Analysis Instruments and Sampling Systems Using Cylinder Gases. H. G. Gill, J. W. Graver, Precision Gas Products, Inc., 2544 Plainfield Ave., Scotch Plains, N. J. 07076. 10:40 Residual Chlorine Monitoring in Sewage Treatment Plant Employing Dialysis Clarification. N. S. Zaleiko, Technicon, Research Park, Chauncey, Ν. Υ. 11:00 A New Amino Acid Analyzer by Using Metallic Salt Form Ion Exchangers. Y. Arikawa, Hitachi Research Lab., Ibaraki, Japan, I. Makino, Naka Works, Hitachi, Ltd., Japan. 11:20 Continuous Determination of Hydrogen in Chlorine by Thermal Measurement. G. C. Flumerfelt, K. J. Bombaugh, Mine Safety Appliances Co., 201 North Braddock Ave., Pittsburgh, Pa. 15208. 11:40 A Precise and Automatic Buret for Dilution of Re agents. J. C. Wasilewski, R. L. Sellers, American Instru ment Co., Inc., 8030 Georgia Ave., Silver Spring, Md. 20910. GAS CHROMATOGRAPHY—APPLICATIONS Monday Afternoon—Ball Room J. A. Petrocelli, Presiding 1:30 A New Application of GLC in Biomedical Research.

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To Improve Ultra-Micro Sampling and Analysis Techniques You commence with S/l instruments — or a d d them to your present equipment. Either way, increasing work loads and mounting pressure for improved performance and accuracy — whether in wet or dry chemistry — will be satisfied.

The Motorized Natelson Microgasometer, Cat. No. 650, eliminates pos sible operator error and vastly in creases speed. Designed for contin uous, routine clinical determinations, either alone for moderate work loads or to absorb peak loads and to serve as stand-by for major, automatic analyzers.

PITTSBURGH CONFERENCE Alfred W. Hartz, Victoreen Instrument Co., 10101 Wood land Ave., Cleveland, Ohio. 44104. 1:50 The Determination of Sub-Microgram Amounts of Penicillins by Gas Chromatography. Joseph B. Martin, Jr., Ross U. Robinson, Richard M. Bezjian, Abbott Labora tories, North Chicago, III. 60064. 2:10 Gas Chromatographic Behavior of Sevin Insecticide. Lloyd Kahn, U.S. Geological Survey. Denver Federal Center, Denver, Col. 80225. 2:30 Separation of Cis-Trans Isomers of Fatty Acid Esters. Russell E. Schavey, Packard Instrument Co., 2200 Warrenville Road, Downers Grove, III. 60515. 2:50 Analysis of Trimethyl Silyl Ether Derivatives of Alkyl Ethylene Oxide Condensates by Gas Chromatography. W. J. Carnes, The Procter and Gamble Co., Ivorydale Tech nical Center, Cincinnati, Ohio. 45217. 3:20 Computer Program for Gas Chromatographic Column Selection Using the ASTM Data Compilation. Terrence B. Rooney, Paul F. Butler, The Foxboro Co., 38 Neponset Ave., Foxboro, Mass. 02035. 3:40 Application of Gas Chromatography to the Determi nation of Total Carbon and Identification of Carbon Con taining Compounds in Alkali Metals. Harold Bradley, Gen eral Electric Co., Missile and Space Division, Cincinnati, Ohio. 45215. 4:00 A Rapid Method for the Determination of Intercontamination of Petroleum Products Using Gas Chroma tography. W. H. Miller, R. C. Barras, The Atlantic Refin ing Co., 3144 Passyunk Ave., Philadelphia, Pa. 19145. 4:20 Improved Method for Chromatographic Determina tion of Helium in "Conservation" Gas Streams. C. A. Seitz, S. E. Churchwell, Helium Research Center, Bureau of Mines, P. O. Box 10085, Amarillo, Texas. 79106. 4:40 The Evaluation of Ultraviolet Absorbers in Acrylic Nitrocellulose Polymers by Gas Chromatography. J. L. Cameron, H. C. Su, Lockheed-Georgia Co., Marietta, Ga. 30061. 5:00 Gas Chromatography Analysis of Mixtures Contain ing Oxygen and Argon by Elimination of Oxygen. T. L. Chang, Bituminous Coal Research, Inc., 350 Hochberg Road, Monroeville, Pa. 15146.

ELECTROANALYTICAL CHEMISTRY AND CHEMICAL SEPARATIONS Addition of the Gas Injector Attach ment, Cat. No. M-373-25 t o the Motorized Microgasometer permits direct injection of gases liberated in the Microgasometer into any Gas Chromatograph.

S/l Cat. No. RO-31, Spot Oven, com bines accurate control of vacuum, temperature and rate of evaporation to insure uniform spots for trace metal analysis of chromatographic solutions. Ask your laboratory supply dealer for literature, or a demonstration.

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Monday Afternoon—Pittsburgh Room J. O. Frohliger, Presiding

1:30 A Critical Evaluation of Chronopotentiometry Polarography and Rapid Scan Voltammetry as Analytical Techniques. R. J. Joyce, S. H. Segal, Beckman Instru ments, Inc., Fullerton, Calif. 92634. 1:50 Applications of Differential Polarography. E. June Maienthal and J. K. Taylor, National Bureau of Standards, Washington, D. C. 20234. 2:10 Polarographic Study of Some Dihydrazide Complexes of Cadmium. A. F. Krivis, G. R. Supp, R. L. Doerr, Olin Mathieson Chem. Corp., New Haven, Conn. 06504. 2:30 Separation and Determination of Lead, Cadmium, and Tin by Controlled Potential Coulometry. W. M. Wise, D. E. Campbell, Corning Glass Works, Corning, Ν. Υ. 14831. 2:50 The Coulometric Determination of Nanogram Quan tities of Chloride in Treated Water. D. M. Zall, C. Schaller, U. S. Navy Marine Engineering Lab., Annapolis, Md. 21402. 3:10 Accurate Evaluation of Glass Electrodes in Constant Ionic Medium. T. S. Light, Foxboro Co., 38 Neponset Ave., Foxboro, Mass. 02035. K. S. Fletcher, III, Univ. of Mass. Dept. Chemistry, Amherst, Mass. 3:50 A Rapid Method for Selectively Gathering Metals without Masking. T. S. Hermann, Midwest Research In stitute, 425 Volker Blvd., Kansas City, Mo. 64110. 4:10 Inorganic Thin-Layer Chromatography on Microcrystalline Cellulose. F. D. Houghton, Analtech, Inc., 100 South Justison St., Wilmington, Del. 19801. 4:30 A Critical Survey of Some Variables Affecting TLC Separations. M. K. Brandt, A. R. Tallman, Analtech, Inc., 100 South Justison St., Wilmington, Del. 19801.

PITTSBURGH CONFERENCE SYMPOSIUM ON ELECTRON SPIN RESONANCE Monday Afternoon—Terrace Room Ε. Μ. Arnett, Presiding

2:00 Isotope Effects in Electron Spin Resonance Spectra. George K. Fraenkel, Columbia University, Dept. of Chem istry, 866 Chandler, New York, Ν. Υ. 10027. 2:30 Application of ESR Spectroscopy of Problems of Structure and Conformation. Aliphatic Semidiones. Glen A. Russell, Iowa State University, Dept. of Chemistry, Ames, Iowa. 50010. 3:00 Some Studies of Triplet States by ESR. Edel Wasserman, Bell Telephone Laboratories, Inc., Murray Hill, N. J. 07971. 3:30 Selective Formation of Radicals in Organic Solids. Hanan C. Heller, Ford Scientific Laboratory, Chemistry Dept, P. O. Box 2053, Dearborn, Mich. 48121. 4:00—Kinetic Studies of Excited Triplets in Enzyme Cofactors by ESR. Lawrence H. Piette, University of Hawaii., Dept. of Biochemistry and Biophysics, 1801 University Ave., Honolulu, Hawaii. 96822. 4:30 ESR Studies of Radiolytically Generated Radicals. Richard W. Fessenden, Mellon Institute, 4400 Fifth Avenue, Pittsburgh, Pa. 15213.

Roller Smith Precision Balances offer outstanding quality with unique versatility.

ELECTRON PROBE SYMPOSIUM Monday Evening—Ball Room R. M. Fisher, Presiding

8:00 Microprobe Accessories for Expanded Analytical Capability. V. G. Macres, O. Preston, Materials Analysis Co., 8 1 Encina Ave., Palo Alto, Calif. 94301. 8:20 X-Ray Spectrometer Performance as a Function of Electron Probe Geometry. R. A. Abelmann, R. E. Jones, Applied Research Laboratories, Inc., P. O. Box 1710, Glendale, Calif. 91209. 8:40 Analysis with the AMR/4 Probescope. R. E. Ogilvie, Advanced Metals Research Corp. Burlington, Mass. 01804. 9:00 Micron Size Intermetallic Phase Identification in Thermocompression Bonds on Integrated Circuits. C. C. Nealey, K. t . Kamber, C. W. Laakso, Autonetics, Division of North American Aviation, Inc. 3370 Miraloma Ave., Anaheim, Calif. 92803. 9:20 Electron Probe Determination of Cr Doping Levels in Al203. G. W. Bruno, S. H. Moll, Advanced Metals Research Corp., Burlington, Mass. 01804. 9:40 Electron Probe Analysis of the Carbon Κ Spectrum from Nonstoichiometric Titanium Carbides. S. H. Moll, D. M. Koffman, Advanced Metals Research Corp., Burling ton, Mass. 01804. 10:00 The Analysis of Plant Tissue with the Microprobe. A. L. Kenworthy, Michigan State University, Dept of Horticulture, Michigan State University, E. Lansing, Michi gan, H. T. Dryer, Applied Research Laboratories, Inc. 20220 W. Outer Drive, Dearborn, Mich. 48124. NMR AND ESR SPECTROSCOPY

Roller Smith Precision Balances combine quality construc tion with great versatility. Each balance may be tared to increase its basic range by a factor of three with constant sensitivity and accuracy. All models are easily portable and require no special environment. And repetitive weighings can be performed with utmost speed by means of a conven ient beam lock and release. Each Roller Smith balance has a rugged, light weight, die cast aluminum case and a modern design that's func tionally suited for ease of operation. Extremely fine senitivity with precise accuracy is maintained for decades because of their durable construction. The LH series, which is compensated for temperature and humidity changes has an accuracy of Vio of 1%. The LG series balances provide a wide variety of models calibrated in milligrams, grams and grains with an accuracy of Vs of 1%. All models are economically priced making the Roller Smith Balances ideal for use in education, research and quality control, or a second balance for all labs. The most recent addition to the Roller Smith heritage, is the Rosano Surface Tensiometer. Employing the Wilhelmy principle, measurement of surface tensions and pressures may be obtained with greater accuracy and ease than is cus tomarily realized with prior instrumentation. Model

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Basic Range

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98 dyne/cm

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300ms.

75mg.

294 dyne/cm

One Scale D i \ .

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O.lmg.

.382 dyne/cm

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0.2mg.

,05mg.

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.04 dyne/cm

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1 mg.

O.lmg.

0.05mg.

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Monday Evening—Pittsburgh Room C. E. Griffin, Presiding

8:00 The NMR Spectro of Alkyl Pyridines. F. R. Mc Donald, G. L. Cook, Laramie Petroleum Research Center, U. S. Bureau of Mines, P. O. Box 3395, University Sta tion, Wyo. 82071. 8:20 A Nuclear Magnetic Resonance Study of the Nitrimino-Nitramino Equilibria. J. U. Lowe, Jr., A. S. Tompa, R. D. Barefoot, R. Evans, U. S. Naval Propellant Plant, Indian Head, Md. 20640. 8:40 NMR Study of the Reaction of α-Cellulose in SbClsAsCls-KOH Systems. H. A. Szymanski, R. E. Yelin, Canisius College, Buffalo, Ν. Υ. 14208. 9:00—ESR Studies of Triplet States in Triphenylene and THF. H. Hasegawa, T. Maruyama, Japan Electron Optics Laboratory Co., Ltd., Nakagami-cho 1418, Akishima, Tokyo, Japan. 9:20 Electron Paramagnetic Resonance of Coals during

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1966

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PITTSBURGH CONFERENCE Electron Irradiation. H. L. Retcofsky, A. G. Sharkey, Jr., R. A. Friedel, Pittsburgh Coal Research Center, U. S. Bureau of Mines, 4800 Forbes Ave., Pittsburgh, Pa. 15213. 9:40 S-91 Melanoma, Correlation between EPR and Chemi cal Studies. W. Landgraf, H. Demopolous, P. Duke, Varian Associates, 611 Hansen Way, Palo Alto, Calif.; School of Medicine, University of Southern Calif. 10:00 A Long Cavity for ESR Studies of Lossy Samples. P. A. Strauss, V. J. Bortolot, Perkin-Elmer Corporation, Norwalk, Conn. 06852.

fluoride Fusions. J. V. Derby, Westinghouse Electric Corp., Box 158, Madison, Pa. 15663. 11:25 Pyrolysis—A Technique for Confirmatory Identifica tion with Pesticides and Other Applications. Richard C. Cavenah, Theron Johns, Beckman Instruments, Inc., Fullerton, Calif. 92634. 11:45 Determinations of the Total Carbon Content (p.p.m.) of Trichlorosilane by Reaction Gas Chromatography. L. G. Hawkins, C. R. Thrash, D. L. Voisinet, Union Carbide Corp., Silicones Div., P. O. Box 180, Sistersville, W. Va. 26175. IRON AND STEEL ANALYSIS—CHEMICAL

TUESDAY, FEBRUARY 2 2 GAS CHROMATOGRAPHY—PYROLYSIS

METHODS

Tuesday Morning—Pittsburgh Room SYMPOSIUM

Tuesday Morning—Ball Room Dan P. Manka, Presiding

8:30 Advances in the Pyrolysis-Gas Chromatographic Technique. D. R. Rushneck, Barber-Colman Co., Rockford, III. 61101. 9:00 The Analysis of Polymer Pyrolysates by Means of Cryogenic Programmed Temperature Gas Chromatography and Rapid Scanning Mass Spectrometry. D. H. Robertson, C. Merritt, Jr., U. S. Army, Natick Laboratories, Natick, Mass. 9:30 Taxonomic Differentiation of Microorganisms by Pyrolysis—Gas-Liquid Chromatography. Eugene Reiner, Communicable Disease Center, U. S. Public Health Serv ice, DHEW. 1600 Clifton Road, Ν. Ε. Atlanta, Ga. 30333. 10:15 Pyrolysis-GLC in the Identification of Drugs and Poisons. Paul L. Kirk, University of California, Dept of Criminology, Berkeley 4, Calif. 10:45 The Pyrolysis of Simple Organic Molecules in Gas Chromatography. Thomas Wolf, Douglas M. Rosie, Uni versity of Rhode Island, Dept. of Chemistry, Kingston, R. I. 02881. 11:05 The Determination of Oxygen in Inorganic Com pounds by Bromine Trifluoride and Potassium Bromotetra-

W. J. Raber, Presiding

8:30 An Evaluation of Methods for the Determination of Metallic Iron in Reduced Iron Ores. T. D. Searl, S. C. Blum, Esso Research and Engineering Co., Analytical Res. Div., Linden, N. J. 07036. 8:50 High Precision Spectrophotometric Determination of Macro and Micro Quantities of Nickel. O. Menis, E. R. Deardorff, National Bureau of Standards, Washington, D. C. 20234. 9:10 The Photometric Determination of Antimony in Zinc and Steel. L. C. Ikenberry, N. G. Sellers, Armco Steel Corp., Research and Technology, Middletown, Ohio. 45042. 9:30 Extraction Spectrophotometric Determination of An timony as an Ion-Pair Complex. R. W. Burke, O. Menis, National Bureau of Standards, Washington, D. C. 20234. 9:50 The Spectrophotometric Determination of Trace Amounts of Phosphorus in Steel. W. R. Bandi, H. M. Theakston, U. S. Steel Corp., Applied Research Laboratory, Monroeville, Pa. 15146. 10:30 Comments on the Determination of Carbon and Oxygen in Metals. J. B. Mooney, L. J. Garbini, C. E. Schoder, Varian Associates, 611 Hansen Way, Palo Alto, Calif. 94303. 10:50 An Automatic Analyzer for Determining Carbon in Steel with Direct Readout in Per Cent Carbon. L. L.

Rapid, Quantitative separation of metals by D Y N A - C A T H mercury cathode

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Advanced design makes mercury cathode a practical analytical tool. Dyna-Cath does a fast, complete job in separation of metals. A novel magnetic circuit causes the electro lyte and mercury to move in opposite direc tions, providing counter-current stirring. The ferromagnetic metals formed at the interface are drawn beneath the mercury surface, providing a continously clean sur face and preventing re-solution of deposited metals. In determination of a l u m i n u m in steel—removes .5 g m of iron quantitatively in 10 m i n u t e s . Catalog No. 1500. $545.00 Ask for Catalog 66 and Working Manual

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Eberbach

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PITTSBURGH CONFERENCE Lewis, and M. J. Nardozzi, U. S. Steel Corporation Applied Research Laboratory, Monroeville, Pa. 15146. 11:10 Presence and Determination of Sulfur Levels in TinLead Solders. H. E. Fuchs, Western Electric Co., Inc., Engr. Research Center, P. Ο Box 900, Princeton, N. J. 08540. 11:30 The Determination of Trace Amounts of Sulfur in Iron and Steel. W. R. Bandi, E. G. Buyok, W. A. Straub, U. S. Steel Corp., Applied Research Laboratory, Monroe ville, Pa. 15146.

You wouldn't expect « KFM sensitivity in aj 7-second analysis of | trace elements... #~ ?

SYMPOSIUM ON ANALYTICAL TECHNIQUES OF THE FUTURE Tuesday Morning—Terrace Room C. F. Glick, P r e s i d i n g

9:00 Introduction to the Principles of Nuclear Quadrupole Resonance Spectroscopy. R. S. Drago, Univ. of Illinois, Dept. Chemistry, Urbana, III. 61803. 9:50 Recent Developments in Atomic Fluorescence Flame Spectrometry. C. David Miller, American Instrument Co., Inc., 8030 Georgia Ave., Silver Spring, Md.; J. D. Winefordner, Dept. of Chemistry, Univ. of Florida, Gainesville, Fla. 10:30 Secondary Ion Microanalysis. R. Castaing, Univ. of Paris, Orsay (Seine et Oise), France. 11:20 Analytical Applications of the Mossbauer Effect. P. A. Flinn, Carnegie Inst, of Technology, Pittsburgh, Pa. 15213. 11:15 Surface and Bulk Analysis of Solids with the Ion Microprobe Mass Spectrometer. A. E. Barrington, R. F. Herzog, W. P. Poschenrieder, GCA Corp., Burlington Road, Bedford, Mass. 01730; A. P. Hobbs, Dow Chemical Corp., Midland, Mich. 48641.

unless you've used a Bendix Polarotrace lately.

PURDUE UNIVERSITY Faculty, Students, Alumni Tuesday, Feb. 2 2 — 4 : 4 5 - 6 : 1 5 P.M. GAS

CHROMATOGRAPHY—DETECTORS Tuesday Afternoon—Ball Room

R i c h a r d E. H e i n , P r e s i d i n g

1:30 Response Characteristics of a High Temperature Electron Capture Detector. Irwin H. Krull, James C. Sternberg, Beckman Instruments Inc., Fullerton, Calif. 92634. 1:50 Characteristic of the Concentric Tube and Parallel Plate Electron Capture Detectors. C. Harold Hartmann, Dudley M. Oaks, Keene P. Dimick, Wilkens Instrument & Research, Inc., P. O. Box 313, Walnut Creek, Calif. 94597. 2:10 Optimization of Flame Ionization Detectors for Gas Chromatographic Determination of Chlorinated and Organophosphorus Pesticides. T. S. Hermann, C. W. Stanley, Midwest Research Institute, 425 Volker Blvd., Kansas City, Mo. 64110. 2:30 A Hydrogen Flame Ionization Detector System for Liquid-Liquid, Liquid-Solid Column Chromatography. Ralph A. Woods, Charles D. Lantz, Barber-Colman Com pany, Rockford, III. 61101. 3:05 The "Krypton Triode" as a Selective Detector for Gas Chromatography. C. D. Pearson, R. S. Silas, Phillips Petroleum Company, Bartlesville, Okla. 74004. 3:25 Radioactivity Monitoring System for Gas Chroma tography. Charles D. Lantz, Ralph A. Woods, BarberColman Co., Rockford, III. 61101. 3:45 A Geiger Counter Detector for Gas Chromatography. Arthur F. Findeis, Frederick W. Williams, University of Alabama, Dept. of Chemistry, University, Ala. 35486. 4:05 Rapid Scan Infrared Spectroscopy Applied to Gas Chromatographic Effluent. Kenneth E. Stine, Howard J. Sloane, Richard C. Cavenah, Beckman Instruments, Inc., Fullerton, Calif. 92634. 4:25 Selective Detection System for Nitrogen Compounds. Ronald L. Martin, American Oil Co., P. O. Box 4 3 1 , Whiting, Inc. 46394.

I t ' s difficult to appreciate fully t h e speed and sensitivity of a Bendix® Polarotrace—or its versatility and useful ness—if you h a v e n ' t seen one in action. A lot of people have because Polarotraces are finding increasingly greater use in a wide range of analytical applications. (Many of these applications defy other instrumental techniques.) They're used in the food and drug fields for determination of trace toxic metals and essential minerals, in metal lurgical analysis, for determination of organic species, and for semiconductor production—to name a few. A Bendix Polarotrace is a polarographic system t h a t uses drop-synchronized linear voltage sweep to detect and measure trace elements in solutions. I t has two basic types of operation: single cell and double cell. Doublecell models provide subtractive, comparative a n d deriv ative means of analysis. Several models are available. All permit t h e use of small samples because of their sensitivity. Also, their high resolution a n d tolerance t o preceding reductions help to simplify preparatory chemistry. For more information, contact us a t 3625 Hauck Road, Cincinnati, Ohio 45241. Bendix Cincinnati builds mass spectrometers, polarimeters, polarographic systems, viscometers and other scientific instruments for over 100 areas of research and analysis.

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V i s i t O u r B o o t h 63-64 a t t h e P i t t s b u r g h A C A S M e e t i n g F e b . 21-25, 1966 Circle No. 71 an Readers' Service Card


1966

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PITTSBURGH CONFERENCE S Y M P O S I U M O N N M R SPECTRA POLYMERIC MATERIALS

D E T E R M I N A T I O N OF G A S E S A N D N O N M E T A L L I C I N C L U S I O N S IN METALS Tuesday Afternoon—Pittsburgh

OF

Tuesday Afternoon—Terrace Room

Room

M. J. Weiss, Presiding

F. E. Dickson, Presiding

1:30 Qualitative and Quantitative Study of Individual Metal Sulfides in Steels by a Combustion-Microcoulometric Method. W. Swartz J u n i a t a College, H u n t i n g t o n , Pa.; W. A. S t r a u b , U. S. Steel Corp., A p p l i e d Research Laboratory, M o n r o e v i l l e , Pa. 15146. 1:50 Isolation and Determination of Metallurgically Dis solved Boron and Precipitated Boron Compounds in Steel. L. C. Pasztor, Mary Lou H a r m o n , a n d R. M. Raybeck, Jones & L a u g h l i n Steel Corp., P i t t s b u r g h , Pa. 1 5 2 2 7 . 2:10 The Identification and Determination of Nitrides i n S t e e l . — A DTA-EGA Method. W. R. B a n d i , W. A. S t r a u b , E. G. Buyok, L. M. M e l n i c k , U. S. Steel Corp., A p p l i e d Research Laboratory, M o n r c e v i l l e , Pa. 1 5 1 4 6 . 2:40 The DTA-EGA Determination of Carbides Chemically Extracted from Steel. H. S. K a r p , W. R. B a n d i , L. M . Melnick, U. S. Steel C o r p . , A p p l i e d Research L a b o r a t o r y , M o n r o e v i l l e , Pa. 1 5 1 4 6 . 3:20 A New Method for the Rapid Determination of Nitrogen Contents in Steel by the Vacuum Fusion Method. A. G e r h a r d t , T. K r a u s , M. G. F r o h b e r g , Research L a b o r a t o r y of Balzers AG, Balzers, L i e c h t e n s t e i n , and T e c h n i c a l U n i versity, B e r l i n , G e r m a n y . 3:40 A Study of Three Methods for the Determination of Oxygen in Ferrous Metals. J . T. S t e r l i n g , F. J . P a l u m b o , O. Menis, N a t i o n a l B u r e a u of S t a n d a r d s , W a s h i n g t o n , D. C. 2 0 2 3 4 . 4:00 Applications of a Prototype Vacuum Fusion-Gas Chromatograph Instrument in the Aerospace Industry. W. T. Barnes, D. E. W i l s o n , J . E. A. M a u r i t s , General D y n a m i c s Corp., P. O. Box 2 5 0 7 , P o m o n a , Calif. 4:20 Instrumental Microanalysis of Oxygen in Reducible Metal Oxide—Characterization of Nickel Oxide. Ο. Ν. H i n s v a r k , P. M u l d o o n , F & M Scientific Division of Hewlett-Packard Co., Route 4 1 & Starr Road, A v o n d a l e , Pa. 19311.

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2:00 The N M R Study of Small Molecules Which Are Models of Polymer Chains. F. A. Bovey, Bell T e l e p h o n e Labora t o r i e s , Inc., M u r r a y H i l l , N. J . 0 7 9 7 1 . 2:40 N M R Studies of Polyacetaldehyde. E. G. B r a m e , Jr., Plastics D e p a r t m e n t , E. I. d u Pont de N e m o u r s & Co., W i l m i n g t o n , Del. 1 9 8 9 8 . 3:40 N M R Spectra of Polymers: Complicated Systems for Which the Tacticity Assignments Are Difficult. K. C. Ramey, A t l a n t i c R e f i n i n g Co., 5 0 0 S. Ridgeway, Ave., G l e n o l d e n , Pa. 4:20 Broad-Line N M R Studies of Polytetrafluoroethylene and Other Fluorine-Containing Polymers. C. W. W i l s o n , III, U n i v e r s i t y of A k r o n , Dept. Physics, A k r o n , O h i o . 44304. WEDNESDAY,

FEBRUARY

GAS C H R O M A T O G R A P H Y — C O L U M N

23 PARAMETERS

Wednesday M o r n i n g — B a l l Room T. J. Puzniak, Presiding 8:30 A Study of Alkali Metal Salts as Solid Supports in Gas Solid Chromatography. Robert L. G r o b , George W. Weinert, Villanova University., Dept. C h e m i s t r y , Villanova, Pa. 19085. 8:50 Investigation of Dissolved Solids as Liquid Phases in Gas Chromatography. Karl J . B o m b a u g h , W i l l i a m R. F r e e m a n , Mine Safety A p p l i a n c e s Co., 2 0 1 N o r t h B r a d d o c k Ave., P i t t s b u r g h , Pa. 1 5 2 0 8 . 9:10 Silanization of Solid Supports for Use in Pesticide Analysis. Richard F. K r u p p a , Walter R. S u p i n a , Robert S. Henly, A p p l i e d Science L a b o r a t o r i e s , Inc., State College, Pa. 16801.

^ Built-in recorder monitors true linear absorbance in two ranges; 0 to 0.5 and 0 to 2.5. ^ Unique design eliminates need for base line compensation. ^Automatically controls a fraction collector to deposit each UV-absorbing fraction into a separate collecting tube. The ISCO Model UA is the only UV monitor w i t h a band width so narrow that it conforms rigorously to Beer's absorption law, and does it without changing wave lengths! Bandwidth is so narrow* that precise quantitative results will be obtained if the flow stream absorbs any light at 2 5 4 m u , regardless of the wavelength of maximum absorp tion. Other ultraviolet analyzers operating at a fixed wavelength have so wide a bandwidth (even though more than 9 5 % of their light may be at 254 m t i ) that they shift their maximum response to other wavelengths at higher absorbances. They can only detect the presence, not the quantity, of UV absorbing fractions. *0.6 ηημ at one thousandth peak intensity.

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PITTSBURGH CONFERENCE

GAS MIXING PUMP Prepares Calibration Gases

9:30 Comparison of Methods of Support Deactivation. D. M. Ottenstein, Johns-Manville Products Corp., M a n ville, N. J . 0 8 8 3 5 . 10:05 Particle Size: A Practical Approach t o Increasing Column Efficiency in Gas Chromatography. N. W. Arm strong, G. L. Stauffer, M. E. Runner, Chemical Research Services, Inc., 1 4 Industrial Road, Addison, III. 6 0 1 0 1 . 10:25 Phenomena of Overloaded Gas-Liquid Chromato graphic Columns. F. J . Debbrecht, A. J . Martin, L. Mikkelsen, F&M Scientific Division of Hewlett-Packard Co., Route 4 1 & Starr Road, Avondale, Pa. 1 9 3 1 1 . 10:45 Component Overlap in Gas Chromatographic Columns under Overload Conditions. G. R. Umbreit, R. J . Leibrand, A. J . Testa, F&M Scientific Division of Hewlett-Packard Co., Route 4 1 & Starr Road, Avondale, Pa. 1 9 3 1 1 . 11:05 Steam Chromatography. L. H. Phifer, H. K. Plummer, FMC Corp., American Viscose Division, Marcus Hook, Pa. 19061. 11:25 Selected Applications of Support—Coated Open Tubular Columns. L. S. Ettre, L. S. Purcell, Perkin-Elmer Corp., Norwalk, Conn. 06852. EMISSION

A N D FLUORESCENT

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Wednesday M o r n i n g — P i t t s b u r g h Room C. K. Matocha, Presiding 8:45 A Precision Readout System for the Vacuum Spec trometer Using Linear Integrators. F. N. Earle, Box 1 2 9 , Cambridge, Mass. 02138. (work performed at BairdAtomic, Inc.) 9:00 Design of a High Speed Computer for Spectroscopical Applications. T. Kato, Japan Electron Optics Labora tory Co., Tokyo, Japan. 9:15 Application of Time-Shared Computer in t h e Spectrochemical Laboratory. S. D. Rasberry, M. Margoshes, B. F. Scribner, National Bureau of Standards, Washing ton, D. C. 2 0 2 3 4 . 9:35 Cadet Computer. J . Harley, Iscor Steel Co., Johan nesburg, S. Α., W. S. Wilson, W. Paradise, R. F. Jarrell, Jarrell-Ash Co., 5 9 0 Lincoln St. at Route 1 2 8 , Waltham, Mass. 0 2 1 5 4 . 9:50 N e w Sample Preparation Techniques for Emission Spectroscopy. L. Kopito, Children's Cancer Research Foundation, Boston, Mass. W. G. Elliott, Baird-Atomic, Inc., Cambridge, Mass. 0 2 1 3 8 .

Gas analysis accuracy depends on t h e accuracy and availability of high quality gas standards in sufficient variety for full range calibration of your analyzers. Such high quality and stable gas standards are diffi cult to obtain, expensive, and create storage problems. With ' / a gas mixing pumps and 1 tank of 1 0 0 % CO2 or other gas you can obtain the exact calibration ranges,

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10:25 Direct Reading Spectrographic Analysis of High Purity Copper. G. Baierlein, J . M. Morris, Baird-Atomic, Inc., Cambridge, Mass. 02138. 10:40 Analysis of Ferrite Materials. R. Flitsch, S. J . Zanin, R. L. Rapp, International Business Machines Corp., East Fishkill, Ν. Υ. 1 2 5 3 3 . 10:55 Current Spectrochemical Nomenclature Problems. D. C. Spindler, Ferro Corp., 4 1 5 0 E. 5 6 St., Cleveland, Ohio. 44105. 11:10 A Study of t h e Quenching Properties of Alcohols in Liquid Scintillator Solutions. J . A. Lubkowitz, A. F. Findeis, University of Alabama, Dept. Chemistry, University, Ala. 35486. 11:25 Luminescence of Aromatic Compounds in Polymeric Matrices. G. Oster, Polytechnic Institute of Brooklyn, 3 3 3 Jay St., Brooklyn, Ν. Υ. 1 1 2 0 1 . S Y M P O S I U M O N MAGNETIC OPTICAL ROTATORY DISPERSION

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9:00 Optical Activity—Natural and Magnetically Induced. A. Moscowitz, University of Minnesota, Dept. Chemistry, Minneapolis, Minn. 5 5 4 5 5 . 9:45 Magnetic Circular Dichroism Studies. J . G. Foss, M. E. McCarville, Iowa State University, Dept. of Biochem istry & Biophysics, Ames, Iowa 5 0 0 1 0 . 10:45 Faraday Effect Studies with a Superconducting Solenoid. P. N. Schatz, W. Suetaka, University of Virginia, Charlottesville, Va. 11:30 T h e Dispersion of t h e Faraday Effect in Metal Com plexes. P. J . Stephens, University of Chicago, Dept. Chemistry, Chicago, III.


A.S.T.M.—COMMITTEE E-2 Unsolved Problems in Spectrochemical Analysis (Open to All Conferees) Wednesday, February 2 3 — 3 : 0 0 - 5 : 0 0 P.M. NEW ANALYTICAL INSTRUMENTATION AND TECHNIQUES Wednesday Afternoon—Ball Room B. D. Blaustein, Presiding

1:30 A Simple Solid State pH Meter. J. K. Jacobsen, Milton Roy Co., P. O. Box 12169, St. Petersburg, Fla. 33733. 1:50 The Design and Performance of a New Oxygen Analyzer. H. G. Sturn, E. G. Meyer, Mine Safety Applil· ances Co., 201 North Braddock Ave., Pittsburgh, Pa. 15208. 2:10 An Automatic Optical Instrument for Measuring Steel Cleanness. D. M. Cottingham, Tube Investments Research Laboratories, Hinxton Hall, Cambridge, England. 2:30 An Integrator Employing Automatic Ranging. R. D. Conlon, W. M. Fleisher, Nester/Faust Manufacturing Corp., 2401 Ogletown Road, Box 565, Newark, Del. 19711. 2:50 A New Spinning Band Distillation Unit for High Purity Separations. R. G. Nester, R. M. Nester, Nester/ Faust Manufacturing Corp., 2401 Ogletown Road, Box 565, Newark, Del. 19711. 3:20 The Quartz Resonator and Its Use as a Digital Thermometer. A. Benjaminson, Hewlett-Packard Co., Dymec Division, 395 Page Mill Road, Palo Alto, Calif. 94306. 3:40 Analysis of Moisture in Liquids with the Du Pont 510 Moisture Analyzer. J. Kertzman, E. I. du Pont de Nemours & Co., Wilmington, Del. 19898.

4:00 Routine, Rapid Determination of Purity by Differential Scanning Calorimetry. A. P. Gray, Perkin-Elmer Corp. Norwalk, Conn. 06852. 4:20 Simulation of Counter Double Current Distribution by a Digital Computer. H. J. Dutton, U. S. Dept. of Agriculture, Agricultural Research Service, 1815 North University, Peoria, III. 61604; R. Rothstein, Bradley Uni versity, Peoria, III. 4:40 A Device for the Resolution of Overlapping Distribu tion Functions. I. M. Sarasohn, S. Dal Nogare, E. I. du Pont de Nemours & Co., Wilmington, Del. 19898. 5:00 Analysis of Petroleum Products, Biomedical Fluids, and Polyesters by Gel Permeation Chromatography. L. E. Maley, B. A. Denenberg, W. B. Richman, Waters Associates, Inc., 61 Fountain St., Framingham, Mass. 01701. SYMPOSIUM ON COMBINED GAS CHROMATOGRAPHIC-MASS SPECTROMETRIC TECHNIQUES Wednesday Afternoon—Pittsburgh Room A. B. King, Presiding

2:00 Efficiency of Molecular Separators in Gas Chromatographic-Mass Spectrometric Applications. Ragnar Ryhage, Karolinska Institutet, Stockholm, Sweden. 2:30 The Separation of Organic Vapors from Carrier Gases. Peter M. Llewellyn, Duane P. Littlejohn, Varian Associates, Palo Alto, Calif. 94303. 2:50 Mass Spectrometric Determination of Gas Chroma tography Effluents Containing Unresolved Compounds. Charles C. Sweeley, Dept. Biochemistry and Nutrition, University of Pittsburgh, Pittsburgh, Pa. 15213. 3:10 Collection of Gas Chromatographic Fractions for Mass Spectrometer Introduction. J. W. Amy, E. M. Chait, F. W. McLafferty Purdue University, Dept. Chemistry, Lafayette, Ind. 47907. 3:50 Complementary Use of Infrared and Mass Spec trometry for Vapor State Identification of Gas Chroma tographic Effluents. L. R. Cousins, N. F. Kerr, J. G. Lar-

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Circle No. 245 on Readers' Service Card-

PITTSBURGH CONFERENCE son, A. B. King, Gulf Research & Development Co., P. O. Box 2038, Pittsburgh, Pa. 15230. 4:20 Electrical Recording of High and Low Resolution Mass Spectra of Chromatograph Eluents. R. M. Elliott, B. N. Green, J. S. Halliday, Associated Electrical Indus tries, Ltd., Barton Dock Road, Urmston, Manchester, Eng land. 4:40 Application of Gas Chromatography and Mass Spec trometry to Identification of Food Flavor Components. A. H. Struck, V. J. Coates, Perkin-Elmer Corp., Norwalk, Conn. 06852.

ΨΜΜΪ DÎT "M T7MMIQJFÏ

SYMPOSIUM ON NUCLEAR MAGNETIC DOUBLE RESONANCE Wednesday Afternoon—Terrace Room K. C. Ramey, Presiding

2:00 Evolution of Nuclear Magnetic Double Resonance Techniques. J. N. Shoolery, Varian Associates, 611 Han sen Way, Palo Alto, Calif. 94303. 2:45 Structure Determinations Using Spin-Spin Decou plings, Frequency, and Field Sweep Methods for Homonuclear and Heteronuclear Decoupling. H. Agahigian, Sandoz Pharmaceuticals, State Highway # 1 0 , Hanover, N. J. 07936. 3:45 The "Spin Tickling" Experiment. R. Freeman, Varian Associates, Palo Alto, Calif. 94303. 4:30 NMR Double Irradiation Studies of Solids. R. J. Kurland, Carnegie Institute of Technology, Dept. Chem istry, Pittsburgh, Pa. 15213.

WEDNESDAY EVENING NUCLEAR

METHODS

Wednesday Evening—Ball Room Ε. Ε. Wicker, Presiding

7:30 Recent Work on the Use of Neutron Activation Analysis for the Determination of Variations in the Abun dances of Stable Isotopes. J. T. Corless, Univ. of Rhode Island, Graduate School of Oceanography, Kingston, R. I. 02881. 7:50 New Developments in Neutron Activation Systems for Analysis of Oxygen in Steel. D. E. Wood, P. L. Jessen, R. E. Jones, Kaman Aircraft Corp., Garden of the Gods Road, Colorado Springs, Col. 80907. 8:10 Activation Analysis of Silicon by Conventional Car rier Separations and by Computer Reduction of Gamma Spectra. K. G. Heinen, G. B. Larrabee, Texas Instruments, Inc., P. O. Box 5936, Dallas, Texas. 75222. 8:30 Determination of Grease in Ball Bearing Assemblies by Slow Neutron Transmission. W. E. Mott, D. F. Rhodes, Gulf Research & Development Company, P. O. Box 2038, Pittsburgh, Pa. 15230. 9:00 Some New Techniques in Radiometric Titrations. T. Braun, L. Eotvos University, Budapest, Hungary; J. Tolgyessy, Technical University, Bratislava, Czechoslovakia. 9:20 A New General Analysis Method (Analysis of Binary Systems). J. C. Masotta, Universidad Nacional de La Plata, La Plata, Argentina. 9:40 A Critical Evaluation of the Method of Substoichiometric Radioisotopic Dilution Analysis. A. R. Landgrebe, L. T. McClendon, J. R. DeVoe, National Bureau of Stand ards, Washington, D. C. 20234. THURSDAY, FEBRUARY 2 4 COBLENTZ SOCIETY

SYMPOSIUM

THE PROFESSIONAL INFRARED SPECTROSCOPIST Thursday M o r n i n g — B a l l Room Dr. Nelson Fuson, Presiding

9:00 Introductory Remarks—Dr. Nelson Fuson, Chairman. 9:10 Is Infrared Enough? Dr. R. Robert Brattain, Con sultant, 1 Whiteoak Drive, Hidden Valley, Lafayette, Calif. 94549.

At Kewaunee vou c a n . . . • Operate fume hoods at different face velocities and observe optimum operating conditions. • Observe the effects of variations in room tempera ture, auxiliary air tempera tures, etc., on fume hood operation. • Observe the airflow pat terns (by visible fumes) of regular Fume Hoods and Auxiliary-Air Type Fume Hoods using up to 70% auxiliary air. • Determine to your own satisfaction the practicabil ity of using Auxiliary-Air Type Fume Hoods to save large quantities of cooled room air. • Test laboratory work top materials to determine the best type(s) for your par ticular requirement. • Test the finish on metal laboratory furniture to de termine how well it will withstand the effect of re agents you will be using. For additional information, or to make an appointment to visit this new Fume Hood Laboratory and Testing Facility, contact your local Kewaunee Representative, or call Area Code 313-265-7131 or write

Kewaunee's FUME HOOD LABORATORY AND TESTING FACILITY will enable you to predetermine your requirements KEMMETAL KEWAUNEE MFG. CO. • ADRIAN, MICH,

5 0 9 0 Center Street Circle No. 107 on Readers' Service Car» VOL.

38, NO. 2, FEBRUARY

1966

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PITTSBURGH CONFERENCE Gaumer, Sabina S p r a g u e , Walter Slavin, Perkin-Elmer Corp., Norwalk, C o n n . 0 6 8 5 2 . 9:30 Developments in Instrumentation for Atomic Ab sorption Spectroscopy. M. D. A m o s , T e c h t r o n PTY, L t d . , H e a t h r o w House, Bath Road, C r a n f o r d , Middlesex, Eng land. 9:45 Nitrous Oxide—Acetylene Burner with Improved Sample Delivery System. A u g u s t Hell, J u a n RamirezM u n o z , N o r m a n S h i f r i n , B e c k m a n I n s t r u m e n t s , Inc., Full e r t o n , Calif. 9 2 6 3 4 . 10:20 Determination of Metals in Cement by Atomic Ab sorption Spectroscopy. Luis Capacho Delgado, D. C. M a n n i n g , Perkin-Elmer Corp., Norwalk, C o n n . 0 6 8 5 2 . 10:35 Determination of the Alkaline Earth Metals in Phos phate Rock, Limestone, Feldspar, Clay, and Burnt Re fractories by Flame Emission and Atomic Absorption Spec trophotometry. T. C. Rains, Oscar Menis, N a t i o n a l Bureau of S t a n d a r d s , W a s h i n g t o n , D. C. 2 0 2 3 4 . 10:55 The Application of Atomic Absorption Spectroscopy to Study the Effects of Temperature on the Volatilization of Alkali Salts during Dry Ashing of Teflon. T. Y. K o m e t a n i , Bell Telephone Laboratories, Inc., M u r r a y Hill, N.Y. 07971. 11:10 The Determination of Vanadium by Atomic Absorption Spectrophotometry. R. C. Barras, H. W. S m i t h , A t l a n t i c Refining Co., 3 1 4 4 Passyunk Ave., Philadelphia, Pa. 19145. 11:30 The Use of Computer Techniques in Emission and Atomic Absorption Flame Photometry. J. Ramirez-Munoz, J . L. Malakoff, C. P. A i m e , B e c k m a n I n s t r u m e n t s , Inc., Fullerton, Calif. 9 2 6 3 4 .

9:40 The Infrared Spectroscopist in the Academic Lab oratory with Comments on Professional Training. Dr. Walter F. Edgell, C h e m i s t r y D e p a r t m e n t , Purdue University, Lafayette, I n d . 10:25 The Professional Infrared Spectroscopist in Gov ernment. Dr. H a r r y C. A l l e n , Jr., I n s t i t u t e f o r M a t e r i a l s Res., N a t i o n a l B u r e a u of S t a n d a r d s , W a s h i n g t o n , D. C. 20234. 10:55 Panel Discussion a n d Questions from the Floor. 11:35 Presentation of the Coblentz Society Award by Dr. A. Lee Smith, President of the Coblentz Society. 11:40 Paper by the 1 9 6 6 Coblentz Society Awardee.

COBLENTZ SOCIETY DISCUSSION MEETING A. Lee Smith, President 8:00 P.M.—Pittsburgh

Room

Thursday, February 2 4 Open t o All Conferees SYMPOSIUM—ATOMIC

ABSORPTION

SPECTROSCOPY

Thursday M o r n i n g — P i t t s b u r g h Room R. M. Jacobs, Presiding 8:30 The Development of an Atomic Absorption Flame Photometer for Routine Measurements. G. C. Collins, Evans E l e c t r o s e l e n i u m , L t d . , H a l s t e a d , E n g l a n d . 8:45 Determination of Zinc in Aluminous Materials by Atomic Absorption Spectroscopy. J a m e s B. Ezell, Jr., Reynolds Metals Co., A l u m i n a Res. Div., B a u x i t e , A r k . 72011. 9:00 Rapid Determination of Zinc in Iron, Steel, and Flue Dusts by Atomic Absorption. L. C. Ikenberry, N. G. Sellers, A r m c o Steel Corp., M i d d l e t o w n , Ohio. 45042. 9:15 An Automated Procedure for the Determination of Trace Metals by Atomic Absorption Spectroscopy. Marvin

ffie Steiwafatutxpfi

MASS

Thursday M o r n i n g — T e r r a c e Room W. M. Hickam, Presiding 8:30 Semiconductor Trace Analysis: A Comparison of Mass Spectrometric and Radiochemical Results. H. M. Klein, G. B. Larrabee, Texas I n s t r u m e n t s Inc., P. O. Box 5 9 3 6 , Dallas, Texas. 75222. 8:50 Reproducibility and Detection Limits Relating to

. . . A versatile thermoanalytic apparatus for the simul taneous registration of differential thermal analysis (DTA), thermogravimetric analysis (TGA), derivative thermal bal ance (DTG), and changes in temperature (T). FEATURES

DTG TGA DTA Τ Measures and Records

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. . . simultaneously and with a single sample: • Weight of the sample. • Rate of change in weight. • Difference in temperature between sample and inert reference. • Temperature of sample or reference. U N I Q U E A U X I L I A R Y SYSTEMS New "Polyplate" sample holder (patents applied for) provides rapid equilibrium with furnace atmosphere, producing sharp transition tem peratures closely comparable with isothermal heating. A simple dilatometric attachment provides TD and unique DTD traces, facilitating the evaluation of transitions. Micro distillation unit permits more rapid determination of phase dia grams than by much slower ASTM methods. Gas absorption system provides for simultaneous titration of evolved gas products. ON VIEW AT BOOTHS F-22 AND F-23 A 1600 C. oven is available. PITTSBURGH CONFERENCE

10. 11.

Eliminates phase shifts of transition temperatures commonly found when serial determinations of temperature are made with separate DTA and DTG equipment. A velocity transducer directly determines the rate of change of balance equilibrium, eliminating the noise found with elec tronic differentiation in conventional null balance systems. High sensitivity — 20 milligrams full scale. High precision — accurate to 0.2 milligram. Photographic recording system attains 0.1% accuracy and is superior to electronic recording. The platinum crucible shielding the thermocouple system per mits operation with highly reactive, gummy, or combustible samples. The crucible both protects the thermocouple from damage and averages temperature transitions of inhomogeneous samples. Dual furnaces, one heating and one cooling, eliminate waiting for furnace cool-down. Gas purge system controls the composition of the furnace gas. Temperatures may be variably programmed from 1°C. to 20°C. per minute. The Derivatograph may also be operated in iso thermal mode. Separate ovens for 600°C. and 1200°C. are included in the basic price. Installation and instructions by N.I.L. engineers included in price.

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Circle No. 125 on Readers' Service Card 88 A

•

SPECTROMETRY—GENERAL


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PITTSBURGH CONFERENCE the Main Substances and Their Immediate Vicinities. Shunichi Enomoto, Eiji Watanabe, Japan Electron Optics Laboratory Co., Tokyo, Japan. 9:10 The Application of a Quadrupole Residual Gas Analyzer to Melting Metals. John B. Mooney, Varian Associates, 611 Hansen Way, Palo Alto, Calif. 94303. 9:30 A New Mass Spectrometer. Harmon W. Brown, Raymond A. Erickson, Robert C. Jones, Varian Associates, 611 Hansen Way, Palo Alto, Calif. 94303. 9:50 Separation and Determination of Krypton and Xenon in Irradiated Nuclear Fuel Samples. Robert E. Foster, Jr., Phillips Petroleum Co., Atomic Energy Division, P. O. Box 2067, Idaho Falls, Idaho. 83401. MOLECULAR SPECTROSCOPY—CIRCULAR DICHROISM J. I. Legg, Presiding

10:30 Circular Dichroism—Theory and Instrumentation. A. Abu-Shumays, J. J. Duffield, Applied Physics Corp., 2724 S. Peck Road, Monrovia, Calif. 91016. 10:50 A Simple Accessory for the Measurement of Circular Dichroism on the Cary 14 Spectrophotometer. J. J. Duffield, A. Abu-Shumays, Applied Physics Corp., 2724 S. Peck Road, Monrovia, Calif. 91016. 11:10 Differential Spectropolarimetry with the Cary Model 60 Spectropolarimeter. W. N. Mitchell, J. J. Duffield, Applied Physics Corp., 2724 S. Peck Road, Monrovia, Calif. 91016. 11:30 Spectrophotometers for the Measurements of Flow Dichroism and Circular Dichroism in the Far Ultraviolet Region. S. Hashizume, N. Okazaki, K. Yamamoto, Y. Karasawa, S. Kozawa, Shimadzu Seisakusho Ltd., Kyoto, Japan.

as gas flows

approach

ZERO •EXTREMELY

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BROOKS

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VIBRATIONAL SPECTRA AND STRUCTURE Thursday Afternoon—Ballroom W. G. Fateley, Presiding

S p e c t r o s c o p y S o c i e t y of P i t t s b u r g h 1966 A w a r d 2:00 P.M. to Professor R. C. Lord, Massachusetts Institute of Technology, from William M. Hickam

AWARD ADDRESS "RECENT DEVELOPMENTS IN FAR-INFRARED SPECTROSCOPY" 2:50 Infrared Analysis of Deuterated Long-Chain FattyAcid Esters. W. K. Rohwedder, C. R. Scholfield, H. Rakoff, J. Nowakowska, H. J. Dutton, Northern Utilization Research and Development Division, U. S. Department of Agriculture, 1815 North University, Peoria, III. 61604. 3:10 The Vibrational Spectra of Methyl Acrylate and Vinyl Acetate. J. E. Katon, W. R. Feairheller, Jr., Monsanto Research Corp., 1515 Nicholas Road, Dayton, Ohio. 45407. 3:30 The Vibration Spectra of Acrylic Acid and Sodium Acrylate. W. R. Feairheller, Jr., J. E. Katon, Monsanto Research Corp., 1515 Nicholas Road, Dayton, Ohio. 45407. 3:50 Infrared Determination of Structural Units in Organic Compounds by Integrated Intensity Measurements: The Car bony I Stretching Vibration of Monomeric and Dimeric Carboxylic Acids. A. S. Wexler, Dewey and Almy Chemical Division, W. R. Grace Co., Cambridge, Mass. 02140. 4:10 Infrared Determination of Structural Units in Organic Compounds by Integrated Intensity Measurements: The Ionic Carboxylate Asymmetric Stretching Vibration of Organic Acid Salts. A. S. Wexler, Dewey and Almy Chemical Division, W. R. Grace & Co., Cambridge, Mass. 02140. 4:30 Infrared Spectrum and Force Constants of Sulfur Tetrafluoride. C. V. Berney, Mellon Institute, 4400 Fifth Ave., Pittsburgh, Pa.; I. W. Levin, National Institutes of Health, Bethesda, Md. 20014. 4:50 Far Infrared Spectra of Mercuric Halides. Y. Mikawa, R. J. Jakobsen, J. W. Brasch, Battelle Memorial Institute, Columbus, Ohio. 43201. 5:10 The Infrared Spectra of Urea-Tetramethylammonium

non-rotating tapered needle design

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SEE US AT PITTSBURGH CONFERENCE Circle No. 76 on Readers' Service Card


1966

•

89 A

PITTSBURGH CONFERENCE Halide Mixtures. J. E. Kovacic, UNIVAC, Division of Sperry Rand Corp., St. Paul, Minn. 55116. SYMPOSIUM—ATOMIC ABSORPTION SPECTROSCOPY Thursday Afternoon—Pittsburgh Room J. E. Paterson, Presiding OPEN PftK ( 5 M&. SAMPLE) PRY N ,

570/TC7 Stone DTA+ = Temperature + Pressure + Dynamic Gas STONE DTA+ techniques and apparatus are used as analytical tools (1) for identification of mineral or chemical species in the test sample, (2) for observing previously undetermined characteristics of a known substance, and (3) for observing effects of thermal history, etc. DTA is classically a technique for observing changes in specific heat or in energy level of a substance as a function of temperature only. STONE DTA+ apparatus extends the variables to include control of gas-phase composition and of pressure. Furthermore the gasphase composition is dynamic i.e. the controlled gas, continuously streamed, is forced through or floods the sample and sweeps away any gas evolved by the decomposition reactions.

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1:15 Trace Determinations in Steel by Atomic Absorption Spectroscopy. J. R. Stansfield, R. Lockyer, Hilger & Watts Ltd., 98 St. Paneras Way, Camden Road, London, N.W.I, England. 1:30 Hollow Cathode Tubes and Their Applications. J. C. Burger, Westinghouse Electric Corp., P. O. Box 284, Elmira, Ν. Υ. 1:50 Recent Developments in Atomic Absorption Spec troscopy. Velmer A. Fassel, Richard N. Kniseley, Richard H. Wendt, John Fiorino, Institute for Atomic Research and Department of Chemistry, Iowa State University, Ames, Iowa. 2:20 Role of Atomic Absorption in Analysis. John A. Norris, Jarrell-Ash Co., 590 Lincoln St. at Route 128, Waltham, Mass. 02154. 3:00 The Determination of Alloying Elements in Mag nesium and Aluminum Alloys by Atomic Absorption Spec troscopy. Ralph E. Mansell, Herbert W. Emmel, Ernest L. McLaughlin, The Dow Chemical Co., Midland, Mich. 48641. 3:20 The Application of Atomic Absorption to Agricultural and Biological Chemistry. Walter Slavin, Perkin-Elmer Corp., Norwalk, Conn. 06852. 3:50 Recent Advances in Atomic Absorption Spectroscopy. J. V. Sullivan, Commonwealth Scientific and Industrial Research Organization, Melbourne, Australia. 4:05 Atomic Absorption—Panel Discussion and Problem Session Panel. J. C. Burger, V. A. Fassel, R. E. Mansell, J. A. Norris, W. Slavin, and J. E. Paterson, Moderator.

A.S.T.M.—COMMITTEE E-2 EMISSION SPECTROSCOPY (Open to All Conferees) 4:45 P.M.—Pittsburgh Room Thursday, February 24

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SYMPOSIUM ON FAST REACTION KINETICS Thursday Afternoon—Terrace Room Ε. Μ. Arnett, Presiding

1:30 The Use of the Time Coordinate in the Analysis of Rapidly Interchanging Chemical Compounds. Manfred Eigen, Max Planck Institute, Gottingen, Germany. 2:10 Temperature Jump Kinetic Studies of the Binding of Ligands by Sperm Whale Metmyoglobin. Robert A. Alberty, D. E. Goldsack, W. S. Eberlein, University of Wis consin., Dept. Chemistry, Madison, Wis. 53706. 2:50 Electron Transfer Reactions. Jack Halpern, Uni versity of Chicago., Chicago, III. 60637. 3:30 Recent Kinetic Studies of Fast Gas Reactions in Flow Systems. Frederick Kaufman, University of Pitts burgh, Pittsburgh, Pa. 15213. 4:10 Ultra-fast Proton Transfer Steps in Acid-Base Reac tions. Ernest Grunwald, Brandeis University, Waltham, Mass. 02154. 4:50 Measurement of Fast Reaction Rates by Nuclear Magnetic Resonance. Martin Saunders, Yale University, Dept. of Chemistry, New Haven, Conn. 06520. INFRARED AND RAMAN INSTRUMENTATION AND TECHNIQUES Friday Morning—Ball Room R. A. Friedel, Presiding

8:30

New Low Cost Infrared Spectrophotometer.

G. T.

PITTSBURGH CONFERENCE 3:20 Application of Spectrophotometry to the Analysis of Extractives from Food Packaging Materials. E. A. Garlock, D. G. Shaheen, Hazleton Laboratories, Inc., P. O. Box 30, Falls Church, Va. 22046. 3:40 A New High Performance Research Monochromator. C. C. Helms, A. J. Russo, D. E. Wasserman, E. H. Siegler, Perkin-Elmer Corp., Norwalk, Conn. 06852. Keahl, Beckman Instruments, Inc., Fullerton, Calif. 92634. 8:50 Design of an Infrared Spectrophotometer for Use with Gas Chromatographs. G. T. Keahl, Beckman In struments, Inc., Fullerton, Calif. 92634. 9:10 Compensating Infrared Spectroscopy. The Wedge Technique. H. McCormick, E. L. Deeley, Paints Division Imperial Chemical Industries, Ltd., Wexham Road, Slough, England; J. Tadayon, Research & Industrial Instruments Co., 17 Stannary St., London, S. E. 1 1 , England. 9:30 Polarization Studies with Infrared Grating Instru ments. R. C. Gore, Perkin-Elmer Corp., Norwalk, Conn. 06852. 9:50 The Use of Multiple-Scan Interferometry to Measure Infrared Reflection Spectra. M. J. D. Low, I. Coleman, Rutgers, The State University, New Brunswick, N. J. 08903. 10:30 Far Infrared Spectroscopy by Interferometry with an Integral Computer System. J. N. A. Ridyard, Research and Industrial Instruments Co., 17 Stannary St., London S.E. 1 1 , England. 10:50 Improvements in Laser-Raman Instrumentation. C. D. Hinman, A. F. Slomba, Perkin-Elmer Corporation, Norwalk, Conn. 06852. 11:10 Sample Handling Techniques for Laser Excited Raman Spectroscopy. H. S. Haber, K. P. George, Applied Physics Corp., 2724 S. Peck Road, Monrovia, Calif. 91016. 11:30 A Role of a Data Retrieval System for Infrared Spectral Data in a Corporate Information Center. F. H.

Dyke, Jr., Jonker Business Machines, Inc., 26 N. Summit Ave., Gaithersburg, Md. 20760. 11:50 A Chemical Class Spec-Finder. P. Sadtler, Sadtler Research Laboratories, Inc., 3316 Spring Garden St., Philadelphia, Pa. 19104.

X-RAY

SPECTROSCOPY—INSTRUMENTATION Friday Morning—Pittsburgh Room

J. S. Rudolph, Presiding

9:00 A New X-Ray Spectrograph^ Data Handling System. R. W. Deichert, Philips Electronic Instruments, 750 S. Fulton Ave., Mount Vernon, Ν. Υ. 10550 9:20 X-Ray Spectrographic Applications of New Norelco Instrumentation. J. F. Crake, Philips Electronic Instru ments, 750 S. Fulton Ave., Mount Vernon, Ν. Υ. 10550. 9:40 High Speed and Reliability in X-Ray Spectroscopy. G. A. Brown, Siemens America Inc., 350 Fifth Ave., Empire State Bldg., New York, Ν. Υ. 10001. 10:20 The Use of Electron and X-Ray Excitation in an Analytical Instrument. J. R. Stansfield, J. Fox, Hilger & Watts, Ltd., 98 St. Paneras Way, Camden Road, London, N.W.I, England. 10:40 New Modular X-Ray Fluorescence Systems for OnLine Control. C. C. Pyne, Baird-Atomic, Inc., 33 University Road, Cambridge, Mass. 02138. 11:00 Analytical Performance of New X-Ray Polychromators. E. Davidson, A. H. Smallbone, Applied Research Laboratories, Inc., P. O. Box 1710, Glendale, Calif. 91209. 11:20 Portable Analytical Equipment Using Radioactive Isotopes. J. R. Stansfield, A. A. Tunney, Hilger & Watts Ltd., 98 St. Paneras Way, Camden Road, London, N.W.I, England.

frm

;ΐιΐΐ§ΐΙ^ The safety features of the Fabco shielded dewar flask are a real benefit to the laboratory worker. A lightweight aluminum case greatly reduces chances of breakage and provides maximum safety from fly ing glass fragments in case of breakage. The shield also serves as a stand to support the flask in an up right position. Glass fragments from broken flasks have always presented a safety problem as shown by the photo graph at the right. The photo, taken at 1/5000th of a second, provides dramatic illustration of the "explo sive" action of a broken flask which is not shielded (a result of the vacuum between inner and outer walls). The Fabco shielded flask provides maximum safety, substantially containing all glass fragments within the case. Fabco shielded flasks are fabricated of P Y R E X glass, silvered and evacuated, in three capacities. 7969A 7969B 7969C

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1966

•

91

A


Klett

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MOLECULAR SPECTROMETRY—UV AND VISIBLE Friday Morning—Terrace Room A. J. Miskalis, Presiding

Photometers fClettsSutnsnetloXitt

PUotaelectOc, Qlaii. Cell

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*7

PITTSBURGH CONFERENCE ON ANALYTICAL CHEMISTRY AND

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