PITTSBURGH CONFERENCE on Analytical Chemistry and Applied Spectroscopy, Inc. and Exposition of Modern Laboratory Equipment Cleveland Convention Center, Cleveland, Ohio E 23rd Pittsburgh Conference on T HAnalytical Chemistry a n d Applied Spectroscopy and Exposition of Modern Laboratory Equipment will be held March 5 to 10, 1972, a t the Cleveland Convention Center, Cleveland, Ohio. This annual meeting is jointly sponsored b y t h e Society for Analytical Chemists of Pittsburgh (Analytical Group, ACS) and the Spectroscopy Society of Pittsburgh (Pittsburgh Section, SAS). The regular registration fee is $8; student registration, $ 1 . Pocket tabs will be issued free for those who wish only to attend t h e Exposition. Housing reservations should b e made before February 21, 1972. Forms and information on housing are available from the Pittsburgh Conference Hous-
ing Committee, Cleveland Convention and Visitors Bureau, Inc., 511 Terminal Tower, Cleveland, Ohio 44113. This year's technical program is the largest ever and will consist of 51 technical sessions with t h e presentation of over 380 papers. T h e Exposition will consist of exhibits of new instruments and lab equipment from companies including firms from Great Britain, Finland, France, J a p a n , a n d W . Germany. Symposia of special interest include sessions devoted to the analytical chemist in process control, teaching analytical chemistry, surface analysis, dedicated computers in analytical chemistry, biomedical applications of mass spectrometry, emission spectros-
Paul C. Cross (left), trustee and special assistant t o t h e President of Carnegie-Mellon University, a n d David S. McKinney, recently retired professor o f c h e m i s t r y o f Carnegie-Mellon University, are winners o f t h e 1972 Spectroscopy Society o f Pittsburgh Award 46 A
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copy, ESCA applications, X - r a y diffraction applications, a n d air pollutant analysis. Of special interest t o American Chemical Society members will b e a symposium titled "Scientists—The 'Out' G r o u p " which will feature talks by G. S. Hammond, P . P . M c C u r d y (Editor of C & E N ) , newly elected ACS President-Elect Alan Nixon, and W. E . Hanford. Innovations this year a r e three technical sessions devoted t o new commercial instruments. All the major areas of analytical chemistry a n d a p plied spectroscopy a r e represented in the scientific program. T h e Spectroscopy Society of P i t t s burgh 1972 Award will be presented t o Paul C. Cross and David S. McKinney of Carnegie-Mellon University by R o b ert Mainier, Chairman of SSP, on Wednesday afternoon, M a r c h 8. T h e Coblentz Society Award a n d Symposium will b e held T h u r s d a y afternoon, M a r c h 9, a t which time George E . Leroi of Michigan State University will receive t h e 1972 Coblentz Award. Prof. Leroi will give a paper on "Structures and Dynamics of Simple Molecular Crystals—Implications from Infrared and R a m a n Spectroscopy." Continuing educational activities planned in connection with the meeting include the Coblentz Society advanced infrared techniques clinic, M a r c h 10; a N e s t e r / F a u s t seminar on quantitative thin-layer chromatography; a n A C S short course on maintaining a n d trouble-shooting chromatographic systems, M a r c h 4 to 5 ; and special film courses on gas chromatography, infrared spectroscopy, a n d atomic absorption spectroscopy. See "Scheduled Courses in Analytical Techniques,"
CONFERENCE COMMITTEES
HARRY FRACEK
JOSEPH RYAN
OSWALK WILKINSON
JOSEPH FELDMAN
ALEX KAVOULAKIS
Conference Officials 1972 BOARD OF DIRECTORS President: HARRY FRACEK, Fisher Sci entific Co. Vice President: JOSEPH R. RYAN, Harbison-Walker Refractories, Inc. Treasurer: JOSEPH A. FELDMAN, Duquesne University Immediate Past President & Chairman, Long Range Planning Committee: WILLIAM G. FATELEY, CarnegieMellon University Chairman (Society for Analytical Chem ists of Pittsburgh): ROBERT J. NADALIN, Westinghouse Research Labs Chairman-Elect (Society for Analytical Chemists of Pittsburgh): C. ELLEN GONTER, Cyrus Wm. Rice Div., NUS Corp. Chairman (Spectroscopy Society of Pittsburgh): ROBERT MAINIER, Koppers Co. Chairman-Elect (Spectroscopy Society of Pittsburgh): ROBERT E. WITKOWSKI, Westinghouse Research Labs Assistant Treasurer: JOHN F. JACKOWITZ, Westinghouse Research Labs Secretary: G. JANE HARTER, Westing house Electric Corp.
Chairman-Elect: land, Ohio
NITA STONE, Cleve
Program Chairman: OSWALD WILKIN SON, Alcoa Technical Center Program Chairman-Elect: HERBERT RETCOFSKY, U.S. Bureau of Mines Exposition Chairman: ALEX KAVOU LAKIS, Shenango, Inc. Exposition Chairman-Elect: ROBERT E. WITKOWSKI, Westinghouse Research Labs
Arrangements Chairman: RALPH M. RAYBECK, Jones & Laughlin Steel Corp. Chairman-Elect: CLINTON L. WOLFE, Westinghouse Research Labs Coordinator of Society Meetings R. K. SCOTT, Harbison-Walker Re fractories, FLORENCE A. EGGERS, Jones & Laughlin Steel Corp.
Program Air Pollution Symposium: JOHN O. FROHLIGER, University of Pittsburgh Atomic Absorption: ROBERT W. FREEDMAN, U.S. Bureau of Mines Clinical Pharmaceutical Analysis: RITA WINDISCH, Mercy Hospital Coblentz Symposium and ESCA: FOIL MILLER, University of Pittsburgh Computers: STUART P. CRAM, Univer sity of Florida Electrochemistry: RICHARD S. DANCHIK, Alcoa Technical Center Emission Spectroscopy: CHARLES R. HINES, Jones & Laughlin Steel Corp. EPR & NMR: FRANK E. DICKSON, Gulf Research & Development Co. Gas Chromatography: EDWARD L. OBERMILLER, Consolidation Coal Co. Liquid Chromatography: PETER TALARICO, Waters Associates, Inc. Mass Spectrometry: A. G. SHARKEY, U.S. Bureau of Mines Molecular Spectroscopy: BRIAN M. HARNEY, U.S. Bureau of Mines Process Analytical Chemistry: RICH ARD T. OLIVER, The Foxboro Co. Professional Relations: RICHARD E. HEIN, H. J. Heinz Co. Surface Analysis: EDGAR BERKEY, Westinghouse Research Labs Teaching Analytical Chemistry: ROD NEY K. SKOGERBOE, Colorado State University Thermal Analysis: ABU Ν D O . WIST, University of Pittsburgh X-ray Spectroscopy: ROBERT K. SCOTT, Harbison-Walker Refractories Preprints: ROBERT C. LIMPERT, Wa ters Associates, Inc., ALLEN J. SHARKINS, Alcoa Technical Center Advisory: R. A. FRIEDEL, U.S. Bureau of Mines, JOHN F. JACKOVITZ, West inghouse Research Labs
Employment Chairman: JOSEPH C. HALOVANIC, Consolidation Coal Co. Chairman-Elect: C. ELLEN GONTER, Cyrus Wm. Rice Div., NUS Corp.
Activities Chairman: JAYNE CARSON, U.S.S. Chemicals, Div. U.S. Steel Corp. Chairman-Elect: DAVID PENSENSTADLER, Carnegie-Mellon University Cleveland Liaison: NANCY BOTTOME Ladies' Program Chairman: JEAN BEARDSLEY, Sohio Research Labs
Housing Chairman: HAROLD A. SWEENEY, Koppers Co. Chairman-Elect: JOHN GRAHAM, Koppers Co. Printing EDWIN S. HODGE, Carnegie-Mellon University Publicity Chairman: ROBERT BAUDOUX, SR., U.S. Steel Corp. Chairman-Elect: WILLIAM HICKAM, Westinghouse Research Labs Cleveland Liaison: AL POLLOCK, Harshaw Chemical Co. Registration Chairman: WILLIAM A. STRAUB, U.S. Steel Corp. Chairman-Elect: DAVID CIFRULAK, Calgon Corp. Special Projects Chairman: EDWARD L. OBERMILLER, Consolidation Coal Co. Chairman-Elect: CHARLES J. McCAFFERTY, JR., PPG Industries, Inc. Pittsburgh-Cleveland Liaison Chairman (Cleveland Section SAS): JACK KOENIG, Case Western Reserve Chairman-Elect (Analytical Group Cleve land ACS): RON A. GREINKE, Union Carbide Corp. Administrative Assistant EDWIN S. HODGE, Carnegie-Mellon University General Administrative Aides MAX KATZ, U.S. Steel Corp., DAN MANKA, Jones & Laughlin Steel Re search Labs, MARY SCOTT, Pitts burgh, Pa., GEORGE VASSILAROS, Crucible-Colt Steel Research Lab Long Range Planning Committee WILLIAM G. FATELEY, Chairman; ROBERT MAINIER, GERALD L. CARL SON, C. KEVIN SCANLON, FRANK E. DICKSON, WILLIAM A. STRAUB
ANALYTICAL CHEMISTRY, VOL. 44, NO. 2, FEBRUARY 1972
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MODEL 850 AUTOLOC™ AMPLIFIER ... remarkably sensitive and easy to use George E. Leroi of Michigan State Uni versity is t h e winner of t h e 1 9 7 2 Coblentz Society Award
Remember w h e n it t o o k f a n c y s e t ups a n d endless knob-twiddling o n t u n e d d e v i c e s t o recover n o i s e buried s i g n a l s ? W e l l , f o r g e t ' e m . Use K e i t h l e y ' s w i d e b a n d 8 5 0 AUTOLOCTMAmplifier. No tuning, Jine/battery operation, simplified set-up and automatic locking cir c u i t r y make m e a s u r i n g a l m o s t w a i t less. S i m p l y p l u g in y o u r reference a n d reach f o r signals o v e r 1 0 0 d Β b e l o w noise. W i t h sensitivities from 1 μ ν t o 1 0 0 mV. State-of-theart c a p a b i l i t y , at a l o w , u n f o r g e t table, $ 1 , 9 9 5 . For line o p e r a t i o n only, $1,895. The Model 850's exclusive fea tures i n c l u d e p u s h b u t t o n - s e l e c t e d line f r e q u e n c y n o t c h a n d l o w pass filters f o r i m p r o v i n g signal recovery. The ability to nail very small signals b y h a n d l i n g non-coherent i n p u t s 1 0 0 0 t i m e s f.s. ( u p t o l V ) . A p o w e r f u l reference c h a n n e l w h o s e adaptive circuitry automatically tracks frequency and locks-in sig nals i n 3 s e c o n d s . T h e f l e x i b i l i t y to handle almost any w a v e f o r m
a n d still d e l i v e r 3 7 0 ° calibrated phase a d j u s t m e n t , b u i l t - i n s e c o n d harmonic and quadrature switching w i t h unparalleled accuracy. A n d , warning lightsformonitoring power a n d reference s u p p l i e s . See t h e Keithley M o d e l 8 5 0 A U T O L O C T M perform. Ask your K e i t h l e y Sales Engineer f o r a per sonal d e m o . A n d a free c o p y o f o u r " G u i d e t o Evaluating and Selecting L o c k - i n Amplifiers". Or contact K e i t h l e y Instruments, Inc., 2 8 7 7 5 Aurora Rd.,Cleveland,Ohio44139. (216) 248-0400.
ASK ABOUT OUR GUARANTEED USER S A T I S F A C T I O N SENSITIVITY, F. S. 1 M V to 100 mV D Y N A M I C RANGE 1 0 0 - 120 dB NOISE / 2 " x 17V 2 "; the "Fractomette 400" is 17"/ 2 " χ 2 4 i / 2 " . Write for Technical Bulletins
BUCHLER INSTRUMENTS DIV. NUCLEAR-CHICAGO CORP. A SUBSIDIARY OF G. O.
SEARLE
& CO
1327 SIXTEENTH ST., FORT LEE, N. J. 07024
For a limited t i m e y o u can get an electronic digital integrator for o n l y t w i c e the p r i c e of an e q u i v a l e n t ISCO m o d e l . This offer is available from any other integrator manufac turer—just tell t h e m y o u w a n t an instrument w i t h these specifications, and ask for their q u o t a t i o n .
213-478-
Exhibiting: Direct readers, computer readouts, X-ray spectrometers.
FRACTOMETTE 400
SPECIAL DOUBLE PRICE OFFER
LABORATORY DATA CONTROL, INC. Interstate Industrial Park P.O. Box 10235 Riviera Beach, Fla. 33404. 305-8445241
LABTEST EQUIPMENT CO. 2221 Barry Ave. Los Angeles, Calif. 90064 2518
FRACTOMETTE 200
ELECTRONIC DIGITAL INTEGRATOR
1 second to 2 hour peak d u r a t i o n capability 5 0 , 0 0 0 counts per second resolution 5 digit area printout Retention t i m e p r i n t o u t A u t o m a t i c baseline tracking Buffer storage register A u t o m a t i c noise filtering A u t o m a t i c peak shape optimization M a n u a l peak sensitivity selection The ISCO M o d e l 9 5 0 has these and other features suitable for gas c h r o matography, standard and high speed l i q u i d c h r o m a t o g r a p h y and other applications. It is p r i c e d under $ 2 , 0 0 0 , and is described in our cur rent general catalog. Send for y o u r c o p y today.
Exhibiting: Chemisphere and Medgas gases and mixtures, Chemodular regulators and fittings, single trip cylinders for instrument calibration, new single and two-stage regula tors for critical applications.
LINEAR INSTRUMENTS CORP. 2930 Grace Lane, Suite Ε Costa Mesa, Calif. 92626 Exhibiting: Integrated strip chart recorders.
graphic
recorders;
LIQUID CARBONIC CORP. 135 S. LaSalle St. Chicago, III. 6 0 6 0 3 . 312-346-8181 Exhibiting: High-purity gases and liquids, rare gases, electronic gases and mixtures; organic gases and liquids, sterilizing and medical diagnostic mixtures, gas handling equipment.
LKB INSTRUMENTS, INC. 12221 Parklawn Dr. Rockville, Md. 20852. 301-881-2510 Exhibiting: New liquid chromatography equipment including fraction collectors, uv
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model 950
INSTRUMENTATION SPECIALTIES COMPANY 4700 SUPERIOR LINCOLN, NEBRASKA 68504 PHONE (402) 434-0231 TELEX 48-6453 SEE US A T P I T T S B U R G H C O N F E R E N C E , B O O T H 8 1 6 .
CIRCLE 9 3 O N READER SERVICE CARD
Goodbye glass!
Pittsburgh Conference monitors, gradient makers and columns; information on combined gas chromatographmass spectrometer system, precision calorimetry systems, microcalorimetry systems. THE LONDON CO. 811 Sharon Dr. Cleveland, Ohio 44145 Exhibiting: pH meters, titrator, pH stat, electrodes, water baths, recorders, ion selective electrodes, pH monitors and controllers, automatic on-line titrators, refrigerated and cooling baths. MARCEL DEKKER, INC. 95 Madison Ave. New York, N.Y. 10016. 212-679-3991 Exhibiting: Scientific and technical books and journals. MATHESON GAS PRODUCTS 932 Paterson Plank Rd. East Rutherford, N.J. 07073. 201-9332400 Exhibiting: Specialty gases, gas data book, first aid book: "Effects of Exposure to Toxic Gases—First Aid and Medical Treatment." MCKEE-PEDERSEN INSTRUMENTS P.O. Box 322 Danville, Calif. 94526. 415-937-3630 Exhibiting: New recorder interface, new dual pH meter, new recording coulometer, new polarography instrument, new uv-vis light source, new monochromator, plus modular MP-system 1000 for electrochemistry and spectrophotometry; X-Y and YT recorders.
Hello Nalgene sep funnels. Nalgene Separatory Funnels of Teflon* FEP are so transparent that even the ether/water phase interface can be clearly seen right down to the stopcock. Resists any chemical used in a sep funnel so it can be used with HF. Ideal for trace analysis. Non-wetting for complete draining. The non-stick, easyto-clean surface makes washing easy. Leakproof stopcock is Teflon TFE, nonseize stopper is new fluoropolymer, Tefzel*. And they're unbreakable—yet competitively priced with glass. Think about that the next time you handle a glass funnel. Available in 125, 250 and 500 ml sizes (Cat. No. 4301). Also available in same sizes with 24/40 Teflon TFE male joint as Teflon Addition Funnel (Cat. No. 4320) for safer use on columns and flasks. Order from your Lab Supply Dealer. Ask for our Catalog or write Dept. 1314, Nalgene Labware Division, Rochester, New York 14602. *DuPon! Registered Trademark
NALGE SYBRON CORPORATION
Natgene®Labtvare,..the
permanent
replacements.
MCPHERSON INSTRUMENT CORP. GCA Corp. 530 Main St. Acton, Mass. 01720. 617-263-7733 Exhibiting: ESCA 36 photoelectron spectrometer and accessories, RS10 high-resolution double-beam spectrophotometer. METTLER INSTRUMENT CORP.
Box 100 Princeton, N.J. 08540. 609-448-3000 Exhibiting: Analytical and precision balances, electronic balances, differential thermal analysis instrumentation, melting point/boiling point detection equipment, thermal microscopy instrumentation. MG SCIENTIFIC GASES Div. MG Technical Products Inc. 1100 Harrison Ave. Kearny, N.J. 07029. 201-991-0100 Exhibiting: Rare and specialty gases and related products; Oxisorb for removal of trace contaminates of oxygen and water from any noncorrosive gas; Minicyl, new disposable 12liter container for calibration mixtures and pure gases. MICROMERITICS INSTRUMENT CORP. 800 Goshen Springs Rd. Norcross, Ga. 3 0 0 7 1 . 404-448-8282 Exhibiting: New Digisorb 2500 automatic multigas surface area analyzer and porevolume analyzer, Model 2205 argon highspeed surface area analyzer, Sedigraph 5000 particle size analyzer, Model 2200 automatic surface area analyzer, Model 2100A Orr surface area pore volume analyzer, Model 915 mercury penetration porosimeter, Model 1202 electrophoretic mass transport analyzer, Model 405 powder characteristics tester. 3 M CO. New Business Ventures Div. 3M Center, Bldg. 220-6E St. Paul, Minn. 5 5 1 0 1 . 612-733-4515 Exhibiting: Model 520 ion scattering spectrometer (ISS), a new analytical instrument for surface characterization. MKS INSTRUMENTS INC. 25 Adams St. Burlington, Mass. 01803.
617-272-
COMPLETE RANGE OF Head-on
PHOTOMULTIPLIER TUBES
from a single s o u r c e all from HAMAMATSU and of course, higher gain, less noise and faster rise time are just some of the basic advantages y o u get vyhen y o u choose H A M A M A T S U — the company w i t h the most up t o date manufacturing techniques. When we say " w i d e selection", i t means maximum choice in size ( 1 - 1 / 8 " , 1-1/2", 2 " , 3 " ) , photocathode (Sb-Cs, Ag-O-Cs, Ag-Bi-Q-Cs, Cs-Te, Bialkali and Multialkaji), spectral response ranging f r o m 1600 — 8 5 0 0 Â , etc. If y o u are in need of tubes f o r photo counting, our R464 (rated several c.p.s.) is the one for y o u .
For completely detailed brochure, write or call t o : HAMAMATSU T VCO.,LTD. 1126, Ichino-cho, Hamamatsu, Japan Telex: 04225 185 Cable: H A M A T V H A M A M A T S U HAMAMATSU CORPORATION 3000 Marcus Avenue, Lake Success, N.Y. 11040, U.S.A. Telex: 967 869 Phone: (516) 3 5 4 - 7 1 2 1
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CIRCLE 8 0 O N READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 44, NO. 2, FEBRUARY 1972
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The Quiet Preamp...
Exhibiting: Precision low pressure-vacuum instrumentation. MOLECTRON CORPORATION 930 Thompson Place Sunnyvale, Calif. 94086. 408-738-2661 Exhibiting: Molecular gas lasers, silicon bolometers, pyroelectric detectors, Specac spectroscopic accessories. NALGE CO. Sybron Corp. 75 Panorama Creek Dr. Rochester, N.Y. 14625. 716-586-8800 Exhibiting: Separatory funnels, graduated cylinders, beakers, straight side jars, poly propylene volumetric flasks, pipets. NATIONAL BUREAU OF STANDARDS Rm. A600, Administration Bldg. Washington, D.C. 20234 Exhibiting: NBS standard reference materials and publications. NESLAB INSTRUMENTS, INC. 871 Islington St. Portsmouth, N.H. 0 3 8 0 1 . 603-4369444 Exhibiting: Temperature-controlled liquid sys tems: constant-temperature baths and cir culators: CryoCool vapor trap coolers; re frigerated recirculators; etc. NICOLET INSTRUMENT CORP. 5225 Verona Rd. Madison, Wis. 5 3 7 1 1 . 608-271-3333 Exhibiting: Series 1070 signal averagers; Series 1080 nmr fast fourier data systems. NORTON PLASTICS & SYNTHETICS Norton Co. P.O. Box 350 Akron, Ohio 44309. 216-633-3224 Exhibiting: Flexible plastic tubing, particlesize reduction equipment, air pollution con trol equipment.
H o w quiet? At 10 Hz, w i t h a 2 ΜΩ s o u r c e r e s i s t a n c e , it h a s a n o i s e figure of less t h a n 0.3 dB. S h o r t e d i n p u t noise from dc to 100 kHz is typically 1 μλ/ referred to the input. Model 113 also offers:
NUCLEAR DIODES, INC. P.O. Box 135 Prairie View, III. 60069. 312-634-3870 Exhibiting: EDAX systems energy dispersive analysis of X-rays accessory for electron col umn devices; EXAM systems energy X-ray analysis of materials system utilizing X-ray tube excitation.
• Ac or dc coupling • Single e n d e d or differential i n p u t • High c o m m o n m o d e rejection • Low- and high-frequency rolloffs • 100 ΜΩ i n p u t i m p e d a n c e • Gain c o n t i n u o u s l y v a r i a b l e 10 to 25,000 • Battery o p e r a t i o n • Price $795. Off-the-shelf-delivery. A s k us to d e m o n s t r a t e our M o d e l 113 Preamplifier for y o u n o w . Call or write Princeton Applied Research Corp., Box 565, P r i n c e t o n , N.J. 08540; t e l e p h o n e (609) 452-2111.
PRINCETON APPLIED RESEARCH CORPORATION ^Box 565, Princeton, New Jersey 08540 Gentlemen: D Please arrange Model 113 demonstration.
OAK RIDGE ANALYTICAL SYSTEMS Research Consultants, Inc. 901 Turnpike P.O. Box 3156 Oak Ridge, Tenn. 37830. 615-482-4438 Exhibiting: Electron spectrometers for chem ical analysis. OCLI INSTRUMENTS 132 Water St. South Norwalk, Conn. 06854. 203-8532224 Exhibiting: RS-1 gc identifier identifies gc peaks by ir spectra in 6 sec on-line; Aztec atomic analyzer Mark 3, high-performance atomic absorption, emission, and fluorescence with full line of accessories.
D Please send more data on Model 113. Name Title Organization Address City State
NUCLIDE CORP. 642 East College Ave. State College, Pa. 16801. 814-2380541 Exhibiting: Mass spectrometers, mass spec trographs, gc/ms systems, mass spectrometer automation systems, the Luminoscope (a cathode luminescence microscope accessory), ms components, information on leasing, vac uum electron beam equipment.
Zip
Phone 117
ON-LINE SYSTEMS, INC. 4721 McKnight Rd. Pittsburgh, Pa. 15237. 412-931-7600 Exhibiting: Time-sharing computer services for management, business and scientific ap plications, including X-ray diffraction, electron
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microprobe and spectrographic analysis, as well as quantitative analysis by atomic ab sorption, chromatography, Coulter counter, and BET instruments. ORION RESEARCH, INC. 11 Blackstone St. Cambridge, Mass. 02139. 617-8645400 Exhibiting: A new electrode for ammonia and a new methods guide (with over 200 ap plications) will be featured along with a com plete line of specific ion electrodes, specific ion meters, pH meters and the Sage line of peristaltic pumps. ORTEC INC. EG&G Co. P.O. Box C 100 Midland Rd. Oak Ridge, Tenn. 37830. 615-482-4411 Exhibiting: X-ray energy analysis systems in cluding the new Model 6100 tube excited fluorescence analyzer. PACKARD INSTRUMENT CO., INC. 2200Warrenville Rd. Downers Grove, III. 60515. 312-9696000 Exhibiting: New medium price Model 419 gas chromatograph, new nitrogen-15 analyzer, ex clusive PNA analyzer, automated amino acid derivatizer, multichannel analyzer, gas chromatographs and accessories. PARR INSTRUMENT CO. 211 53rd St. Moline, III. 61265 Exhibiting: Oxygen bomb calorimeters and combustion equipment; sodium peroxide com bustion bombs, acid digestion bombs; small general purpose bombs and pressure vessels; laboratory scale pressure reaction equipment. PARTICLE DATA, INC. P.O. Box 265 Elmhurst, III. 60126. 312-832-5653 Exhibiting: Computerized ElectroZone parti cle-size analyzer, P.D. counter Model 113 single-channel analyzer and data converter. Thorp micronephelometer ultra-filtration sys tem for measurements down to 0.03 micron. PERKIN-ELMER CORP. Main Ave. Norwalk, Conn. 06852. 203-762-1000 Exhibiting: PS-16 photoelectron spectrom eter; R12B nuclear magnetic resonance spec trometer. PERKIN-ELMER CORP. Instrument Div. Main Ave. Norwalk, Conn. 06856. 203-762-6707 Exhibiting; A new development in differential scanning calorimetry, new and current in strumentation in infrared spectroscopy, gas chromatography, atomic absorption and nu clear magnetic resonance, ultraviolet ab sorba nee and fluorescence, elemental analy sis. PERKIN-ELMER CORP. Coleman Instruments 42 Madison St. Maywood, III. 60153. 312-345-7500 Exhibiting: Digital readout ultraviolet spec trophotometers, high-performance flame pho tometers, mercury analyzers, pH meters, in cluding a new development in automated enzyme analysis. PFALTZ & BAUER, INC. Aceto Chemical Co., Inc. 126-02 Northern Blvd. Flushing, N.Y. 11368 Exhibiting: Laboratory fluid bed dryer and accessories, thin-layer chromatography ap plicator, quick index sample boxes, research chemicals. PHARMACIA FINE CHEMICALS INC. 800 Centennial Ave. Piscataway, N.J. 08854. 201-469-1222
Pittsburgh Conference
Chromosorb "Century Series" polymer supports are now available in 5 grades for more versatility than ever. Chromosorb 101 Fast, efficient separation of free fatty acids, glycols, alkanols, alkanes, esters, ketones, aldehydes and ethers.
Chromosorb 102 For light and permanent gas and low molecular weight compounds. No tailing of water and alcohols.
Chromosorb 103 Efficient, quick separation of amines, amides, alcohols, aldehydes and ketones.
Chromosorb 104 Highest polarity. Efficient separation of nitriles, nitro-paraffins, xylenols, and oxides of nitrogen and ammonia.
Chromosorb 105 Intermediate polarity. Separates aqueous mixtures containing formaldehyde and acetylene from lower hydrocarbons, water from organic compounds.
For more specific information on "Century Series" and other Chromosorb grades, write: Johns-Manville, Box 1960, Trenton, New Jersey. Also available in Canada and overseas. Cable: Johnmanvil.
Johns-Manville CHROMOSORB IS A JOHNS-MANVILLE REGISTERED TRADEMARK FOR ITS BRAND OF PROD UCTS FOR USE AS SUPPORT MATERIAL OR ADSORBENTS FOR GAS CHROMOTOGRAPHY CIRCLE 9 9 O N READER SERVICE CARD
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Exhibiting: Sephadex for gel filtration and ion-exchange chromatography; solvent re sistant columns; all components for liquid chromatography; uv, duo and ri monitors, servo graphic recorders. PHILIPS ELECTRONIC INSTRUMENTS 750 S. Fulton Ave. Mount Vernon, N.Y. 10550. 914-6644500 Exhibiting: Ultraviolet/visible spectropho tometers, infrared spectrophotometers, atomic absorption spectrophotometer, air pollution monitor, liquid chromatograph. X-ray gen erator, vacuum X-ray spectrometer, data handling system. PHOTOVOLT CORP. 1115 Broadway New York, N.Y. 10010. 212-989-2900 Exhibiting: New fully automatic flameless Na and Κ analyzer with digital printout; auto matic kinetic enzyme rate analyzer, displays and prints directly in enzyme units; improved Karl Fischer titrator, requires neither stan dardization nor burets to read and shows moisture directly in micrograms of water; pH meters including digital, expanded scale, and portable models; electrophoresis densitom eter, scans all media and has automatic in tegration and digital printout. PHYSICAL ELECTRONICS INDUSTRIES, INC. 7317 S. Washington Ave. Edina, Minn. 55435. 612-941-5540 Exhibiting: Auger electron spectrometer; vari ous accessories for in-depth composition pro filing and surface chemical analysis; system operation on metals, semiconductors, and in sulators will be demonstrated. PITCHFORD INDUSTRIES, INC. 1901 Painters Run Rd. Pittsburgh, Pa. 15241. 412-531-1227 Exhibiting: X-ray spectrometers, portable and laboratory; sample preparation equip ment; laboratory, electric arc remelt furnace, pulverizers, blenders, and surface grinders. POLYSCIENCE CORP. 63 Gross Point Rd. Niles, III. 60648. 312-647-0611 Exhibiting: Process and laboratory rotational viscometers, constant-temperature circulators, refrigerated chillers and immersion coolers, gravity convection and forced circulation ovens, high-torque stirrers, rotary evapora tors, polarimeters. POLYTEC GMBH & CO. Molectron Corp. 930 Thompson PI. Sunnyvale, Calif. 94086. 408-738-2661 Exhibiting: Polytec FIR 30, far infrared Fourier spectrometer. PRAXIS CORP. 5420 Jackwood San Antonio, Tex. 78238. 512-6843231 Exhibiting: Portable nmr analyzers, use transient method rather than cw; solid, liquid, and moisture determinations; fully solid-state, gives digital readout, scope and recorder monitors; multinuclei and sample-size options; T l and T2 measurements in solids and liq uids. PRECISION CELLS, INC. 221 Park Ave. Hicksville, N.Y. 11801. 516-938-7772 Exhibiting: Glass and quartz spectrophotom eter cells, cell washers, ultrasonic cleaners and cell disruptors, cell racks, custom-made cells. PRECISION GAS PRODUCTS, INC. 681 Mill St. Rahway, N.J. 07065. 201-381-7600 Exhibiting: Ultra-high purity carrier and ref erence gases, highest accuracy liquid phase and vapor phase calibration mixtures blended to customer specification, and custom-engi neered gas handling equipment.
Pittsburgh Conference PRECISION SAMPLING CORP.
P.O. Box 15119 Baton Rouge, La. 70815. 504-9241720 Exhibiting: Pressure-Lok microsyringes and gas tight syringes, micro valves and special injectors for gc, Ic. gems; Mininert valves for fluid sample containers, various sample containers, closures; automatic sampling system for gc; Kontron chart recorders.
PRECISION SCIENTIFIC CO. 3737 W. Cortland Chicago, III. 60647. 312-227-2660 Exhibiting: AquaRator, pumping station, D-75 vacuum pump, Aquatrator, sequential sampler, tape spot evaluator, high-volume air sampler, shaker bath, Tempstir, Porta-Cool, dual jet polisher circulating system, forced circulation oven.
PREISER SCIENTIFIC INC. 900 MacCorkle Ave., S.W. Charleston, W.Va. 25322. 3307
502-636-
Exhibiting: Sartorius balances, Turner spectrophotometers, YSI oxygen meters, Sensitone sensor, Nikon industrial equipment.
RANK PRECISION INDUSTRIES, INC. 411 Jarvis Ave. Des Plaines, III. 60018. 312-297-7720 Exhibiting: Uvichem uv-vis spectrophotometer, 3 models; Atomspek AA spectrophotometer with auto sampler digital readout; Infragraph ir spectrophotometer (low-cost, highperformance double monochromator).
REGIS CHEMICAL CO. 1101 N. Franklin Chicago, III. 60610. 312-943-1622 Exhibiting: Complete line of chemical accessory items for gas chromatography, specialty chemicals and reagents for analytical chemistry, e.g., fluorescence, nmr.
RESEARCH APPLIANCE CO. Route 8 Allison Park, Pa. 15101. 0500
412-486-
Exhibiting: Air pollution equipment, microbellows pump.
RIGAKU DENKI CO., LTD. P.O. Box 42 Topsfield, Mass. 01983. 617-887-2269 Exhibiting: Radiation-safe remote-controlled X-ray diffraction system with automatic sample exchanger; X-ray spectrometer; Simultix multichannel simultaneous X-ray analyzer; 10 KW high-power rotating anode X-ray generator RU-200PL; small-angle scattering goniometer with Kratky attachment; high-temperature thermal dilatometer and simultaneous differential thermal and thermogravimetric analyzer.
SADTLER RESEARCH LABORATORIES, INC. 3316 Spring Garden St. Philadelphia, Pa. 19104. 215-382-7800 Exhibiting: Standard spectra and indices, audio-visual learning aids, IRIS spectral search system.
SARGENT-WELCH SCIENTIFIC CO. 7300 N. Under Ave. Skokie, III. 60076. 312-677-0600 Exhibiting: Recorders, titrators, pH meters, electrodes, Polarograph, spectrophotometers, atomic absorption spectrophotometers, water bath, centrifuge, fluorometer.
SCHOEFFEL INSTRUMENT CORP. 24 Booker St. Westwood, N.J. 07675. 201-664-7263
Fast and accurate
nanosecond fluorescence lifetime spectra using the single-photon counting technique A digital approach Single-photon counting, a highly sensitive technique which actually samples individual quanta of light, is generally acknowledged to be the best method of measuring very low light levels. Now Ortec has applied this technique to the field of nanosecond fluorescence spectroscopy. The Ortec Model 9200 Nanosecond Fluorescence Spectrometer uses a short duration optical light pulse to excite the sample and measures the decaying fluorescence intensity as a function of time over several decades. Our system offers sensitivity and accuracy increased by orders of magnitude compared to existing analytical techniques. This new system is already producing outstanding results in studies of chemical reaction rates, molecular structure, and molecular conformation changes. Improved data reduction A multichannel analyzer records each detected fluorescence photon against a time base for immediate CRT display or Teletype printout of the spectrum. Data is manipulated and stored in a digital,
computer-compatible mode. A computer interface can thus be incorporated to facilitate reduction of complex data. The 9200 system will measure both single and multiple decay components. Multiple components are clearly represented on the spectrum and easily read. (The spectrum above shows the straight line response of a sample having a single lifetime.) Sensitivity is better than 1 ppb quinine sulfate in sulfuric acid. Linearity is typically better than 1 % . System components The exact system configuration will depend on the user's particular requirements, but the basic system consists of a nanosecond light puiser, sample chamber including photomultiplier, multichannel analyzer, and associated electronics. The entire system is designed around NIM-standard modules for enhanced flexibility, reliability, and ease of servicing. Data sheet on request If you'd like more information on the Ortec Model 9200 Nanosecond Fluorescence Spectrometer, we'd be happy to send you a data sheet that tells all about it. Just write or call Ortec Incorporated, 110 Midland Road, Oak Ridge, Tenn. 37830. Phone: (615) 482-4411. In Europe: Ortec Ltd., Dallow Road, Luton, Bedfordshire. Phone; LUton 27557. Ortec GmbH, 8 MQnchen 13, Frankfurter Ring 81, West Germany. Phone: (0811) 359-1001.
RTEC O AN
COMPANY
Exhibiting: Tic spectrodensitometer and clinical model; densitometer accessories; analog and digital computing system for chromatograms; high-intensity arc lamp housings; miniature monochromators, prism and grating type; and photodetection equipment. CIRCLE 144 ON READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 44, NO. 2, FEBRUARY 1972
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93 A
Pittsburgh Conference SUPELCO, INC. Supelco Park Bellefonte, Pa. 16823.
SCIENTIFIC GAS PRODUCTS INC. 513 Raritan Center Edison, N.J. 08817. 201-225-1100
SIEMENS CORP. 186 Wood Ave. S. Iselin, N. J. 08830.
Exhibiting: High-purity gases, gas mixtures, regulators, mass flow meters, flow meter, disposable cylinders, research grade gases.
Exhibiting: X-ray spectroscopy equipment, emission spectrograph; nondispersive X-ray diffraction and spectroscopy systems, liquid chromatography.
Exhibiting: Gas chromatography and thinlayer chromatography supplies; lipid standards and special silylating reagents; custommade glass columns; septums; new short courses on column selection.
SPECTRAMETRICS, INC. Second Ave., Northwest Park Burlington, Mass. 01803. 0540
TECHNICAL EQUIPMENT CORP. 917 Acoma St. Denver, Colo. 80204. 303-623-0258
SCINTILLONICS-INTERFACE Box 7 0 1 , Fort Collins Industrial Park Fort Collins, Colo. 80521. 303-493-
3492 Exhibiting: Microwave emission sources for atomic absorption, atomic fluorescence, and emission spectroscopy.
THE SEPARATIONS GROUP 8738 Oakwood St. Hesperia, Calif. 92345. 714-244-3833 Exhibiting: Column packing materials for high-speed liquid chromatography.
SHIMADZU SEISAKUSHO, LTD. Ataka America Inc. 633 Third Ave. New York, N.Y. 10017. 212-697-7480 Exhibiting: New concept gas chromatograph Model GC-4BM, high-performance gas chromatograph Model GC-5A; economical gas chromatograph Model GC-3B; digital integrator; glass drawing machine for glass capillary column.
SHRADER ANALYTICAL & CONSULTING LABORATORIES, INC. 3450 Lovett Ave. Detroit, Mich. 48210. 313-825-5550 Exhibiting: High and low-resolution mass spectrometry services, gas chromatographic services, combined gems services, analytical consulting services.
201-494-1000
617-272-
Exhibiting: Models 101 and 210 SpectraSpans with accessories, ElectroSpan 505.
SPECTREX CORP. 3594 Haven Ave. Redwood City, Calif. 94063.
Exhibiting: equipment.
Deltatherm
814-359-2732
thermal
analysis
TECHNICON INDUSTRIAL SYSTEMS 511 Benedict Ave. Tarrytown, N.Y. 10591. 914-631-8000
6567
Exhibiting: Auto Analyzer II system with Solidprep sampler II modufe for preparation and analysis of solid samples.
Exhibiting: Vreeland direct-reading spectrograph with quantitative attachment and uv-ir ranges.
TEKMAR CO. P.O. Box 37202
SPEX INDUSTRIES, INC. Box 798 Metuchen, N.J. 08840. 201-549-7144
Exhibiting: Emulsifiers, homogenizers, analytical mill, high-speed filtration system, high-torque stirrer, rotory evaporator, magnetic stirrers, kneaders and blenders.
Exhibiting: New, computerized emission spectrometer system; spectrochemical standards, accessories, supplies.
TEKTRONIX, INC. P.O. Box 500 Beaverton, Ore. 97005.
SSR INSTRUMENTS CO. 1001 Colorado Ave. Santa Monica, Calif. 90404. 8701
Exhibiting: Rapid scan spectrometers, photometers, radiometers.
415-365-
213-451-
Exhibiting: Photon counting instruments: digital synchronous computer, amplifier/discriminator, mass spectrometer Interface, optical multichannel analyzer (for chemical dynamics and other parallel data accumulation applications).
Cincinnati, Ohio 45222. 513-761-0633
TELEDYNE ISOTOPES 110 W. Timonium Rd. Timonium, Md. 21093.
503-644-0161
301-252-8220
Exhibiting: Hydrogen-oxygen generators and accessories.
THERMOLYNE CORP. 2555 Kerper Blvd.
Dubuque, Iowa 52001. 319-556-2241
MPI
MODULAR
SYSTEMS
Exhibiting: Electric muffle furnaces, electronic controls, hot plates, magnetic stirrers, melting point apparatus, incubators, water baths, Dri-baths, laboratory lights.
ARTHUR H. THOMAS CO. Third and Vine Sts. Philadelphia, Pa. 19105. 214-627-5600 Exhibiting: Titrator, new trace oven, mercury attachment for atomic absorption equipment, Model 40 Kofler hot stage, digital readout and printout equipment, microtone sharpener, photomicrographic camera, Schoninger combustion apparatus, electrodes, tic equipment, melting point and programmer, safety equipment.
TOMORROW ENTERPRISES 4408 Hickory Lane Portsmouth, Ohio 45662.
614-353-
3964 Exhibiting: Ultrasonic nebulizers for atomic absorption and flame emission spectroscopy, dc arc power supplies, flame ignitor, Woodriff furnace for nonflame atomic absorption.
FLEXIBLE SPECTROPHOTOMETRIC SYSTEM The MPI "Building Block" concept provides unusual versatility and performance with solid state reliability. This modular photometric system provides light sources, sample holders and detectors with over 30 applications to serve your needs. MP-System 1000 applications include: Flame Photometry, Fluorometry, Colorimetry, Spectrophotometry and Nephelometry. MP-1886 Double Beam UV-Vis-NIR System $4,135. MP-1887 Photometric System " B " for Single Beam UV-Vis-NIR; Filter Photometry, etc. 5,995. MP-1888 Photometric System "A"-Complete Photometric System 7,735. MP-1027 10" Strip Chart Recorder 565. MP-1018 Scanning Monochromator, 0.45 meter 1,095. Write for MPI Catalog-Photometry
Phone: 415-937-3630
McKEE-PEDERSEN INSTRUMENTS, Box 322, Danville, CA 94526 CIRCLE 122 ON READER SERVICE CARD
96 A • ANALYTICAL CHEMISTRY, VOL. 44, NO. 2, FEBRUARY 1972
TORSION BALANCE CO. 35 Monhegan St. Clifton, N.J. 07013. 201-473-6900 Exhibiting: Torbal analytical balances, top loading balances, precision balances, electric mortar grinder, disposable dry box.
ULTRA-VIOLET PRODUCTS, INC. 5114 Walnut Grove Ave. San Gabriel, Calif. 91778. 213-2853123 Exhibiting: Ultraviolet light sources, equipment and meters.
UNIMETRICS UNIVERSAL CORP. 1853 Raymond Ave. Anaheim, Calif. 92801. 714-879-3777 Exhibiting: Modular micro syringes in over 30 models and capacities; micro pipeters with disposable Teflon tips, infrared cell windows of water and acid insoluble arsenic selenide.
Pittsburgh Conference VARIAN Analytical Instrument Div. 611 Hansen Way Palo Alto, Calif. 94303. 415-326-4000 Exhibiting: VIEE-15 photoelectron spectrometer system, used for chemical analysis, electron binding energy determinations, study of oxidation states of elements in compounds, and study of electronic states of solids; NV-14 spectrometer, nmr with field strength of 14.1 kG, operating at a frequency of 15 MHz for 13 C analysis, and 60 MHz for proton nmr. VARIAN ANASPECT 611 Hansen Way Palo Alto, Calif. 94303. 415-326-4000 Exhibiting: EM-600 mass spectrometer, low cost 60° sector, magnetically scanned mass spectrometer with a heated inlet and linear mass readout. VARIAN MAT 611 Hansen Way Palo Alto, Calif. 94303. 415-326-4000 Exhibiting: MAT 111 Gnom, low cost, integrated gc/ms system with good price-to-performance ratio. VARIAN VACUUM 611 Hansen Way Palo Alto, Calif. 94030. 415-326-4000 Exhibiting: Analytical Auger spectrometer for surface research. VARIAN AEROGRAPH 2700 Mitchell Dr. Walnut Creek, Calif. 94598. 415-9392400 Exhibiting: Model 220D gc computer system with 3 optional user terminals (on-line with a Moduline gc); Series 4100 LC research liquid
chromatograph with flow/solvent programmer; 1400 series low-cost/high-performance gas chromatograph; Model 480 digital integrator; Moduline 2800 series research gas chromatographs. VWR SCIENTIFIC Box 3200 San Francisco, Calif. 94119. 415-4672600 Exhibiting: Van-Lab furniture, low-cost quality control DTA, analytical balances, atomic absorption spectrophotometer, general purpose centrifuges, chemistry microscopy systems. WARING PRODUCTS Dynamics Corp. of America Route 44 New Hartford, Conn. 06057. 203-3790731 Exhibiting: Waring commercial blendors, associated attachments to fit blendors, cool base containers, temperature control coils. WATERS ASSOCIATES, INC. 6 1 Fountain St. Framingham, Mass. 0 1 7 0 1 . 617-8792000 Exhibiting: Liquid chromatographs, accessories for liquid chromatography, column packings for both gas and liquid chromatography. WESCAN INSTRUMENTS, INC. 3018 Scott Blvd. Santa Clara, Calif. 95050. 408-2483519 Exhibiting: Membrane osmometer, automatic viscosity timer, temperature controller, conductivity meters, pulse polarographic analyzer.
JOHN WILEY & SONS, INC. 605 Third Ave. New York, N.Y. 10016. 212-867-9800 Exhibiting: Wiley and Wiley-lnterscience books in analytical chemistry. WILKS SCIENTIFIC CORP. P.O. Box 449 South Norwalk, Conn. 06856. 203-8384537 Exhibiting: New family of miniature infrared analyzers including portable gas analyzer with 20-meter cell; infrared probe for liquid analysis; general purpose Miran analyzer; ir detector for gpc and Ic columns; and new ir accessories. WILMAD GLASS CO. INC. U.S. Rt. 4 0 & O a k R d . Buena, N.J. 08310. 609-697-3000 Exhibiting: Royal imperial nmr sample tubes, reference standards, nmr chart paper, throwaway tubes, large-volume nmr sample tubes, shift reagents, microcells, deuterated solvents, Mininert valves, micro vial. ZEEBACINC. 141 Fourth Ave. Berea, Ohio 44017. 216-243-2433 Exhibiting: Emission spectrographic equipment and supplies, including photographic plate and film processor, Kel-Melt sample remelt furnance, and Swisher grinder and accessories; custom designers and consultants for electrooptical instrumentation. CARL ZEISS, INC. 444 Fifth Ave. New York, N.Y. 10018. 212-736-6070 Exhibiting: Micro Videomat; microscope photometer MPM 0 1 ; stereo microscope IV; laboratory microscope KL 18 Pol.
FOR THE FIRST TIME AND ONLY FROM DIGITAL INFRARED SPECTRA OF ALL CHROMATOGRAPHIC PEAKS ON THE FLY TRAPPED STOPPED FLOW •
IR
spectra
of
up
to
90
peaks in a single
chromatographic
run.
•
Microsample sensitivity, yet more useful than GC/mass spec because the spectra are molecular.
•
None of the traditional GC/IR sample collecting problems.
•
Operating temperatures to over 350° C.
•
Automates and integrates operation of any GC w i t h Digilab's F T S ® / I R systems. FOR M O R E I N F O R M A T I O N C O N T A C T :
DIGILAB INC Subsidiary of Block Engineering 237 PUTNAM AVENUE CAMBRIDGE, MASSACHUSETTS 02139
T E L . 617 868-4330 T W X 710 320-0821 TELEX921481
CIRCLE 49 ON READER SERVICE CARD 98 A
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ANALYTICAL CHEMISTRY, VOL. 4 4 , NO. 2, FEBRUARY 1972
