A N A L Y T I C A L C H E M I S T R Y JUNE
NEWS
1959
ASTM Meeting This Month OP ISOTOPES in metal U SEspectroscopic excitation
analysis, sources, microscopy, and identification of waterformed deposits are on the agenda for t h e 62nd Annual Meeting of the Amer ican Society for Testing Materials. T h e 6-day meeting, J u n e 21 to 26, will be held a t the Chalfonte-Haddon Hall, Atlantic City, N . J . Other topics scheduled include edu cation of the engineer in the materials sciences, basic research, standardization of materials for nuclear reactors, and several subjects relating to the national highway construction program. Some of the programs of interest to analytical chemists appear below. Full details are available from A S T M , 1916 Race St., Philadelphia 3, P a . Informal Symposium on Isotopes in M e t a l s Analysis and Testing, J u n e 22, 2:30 P.M . a n d 8:30 P . M . This informal symposium on t h e use of isotopes in metals analysis and testing is being sponsored b y A S T M Committee E-3 on Chemical Analysis of Metals. Symposium on Spectroscopic Excitation Sources, June 24, 9:30 a.m.
The Electron Microscope in the Study of Minerals and Ceramics. J. E. Comer, Pennsylvania State University. June 26, 9:30 a.m.
Structure of Synthetic Fibers. R. G. Scott, E. I. du Pont de Nemours & Co., Inc. Microscopical Studies of Failure in Polymers. S. B. Newman, National Bureau of Standards. Microscopical Evaluation of Cotton Finishing Treatments. M. L. Rollins, I. V. De Gruy, V. M. Tripp, and A. T. Moore, Southern Regional Research Lab oratory. Symposium on Identification of W a t e r Formed Deposits, June 25, 8:00 p.m. Presentation of the Max Hecht Award
Report of Committee D-19 on Indus trial Water. M a x Hecht, C h a i r m a n . Symposium on Identification of W a t e r Formed Deposits
Deposit Identification. The First Step toward Understanding a Water Problem. J. K. Rice, Cyrus Wm. Rice and Co. Application of Emission Spectroscopy to the Analysis of Water-Formed De
posits. C. H. Anderson, Babcock & Wil cox Co. Identification by Instrumental Methods of Chemical Compounds in Water-Formed Deposits. C. M. Maddin and R. B. Rosene, Dow Chemical Co. Electron Microscopy and Electron Diffraction Studies of Oxide Films Formed on Iron in Water Vapor and Oxygen Atmospheres. E. A. Gulbransen and T. P. Copan, Westinghouse Re search Laboratories. Correlation of Elemental Analysis and Phase Identification as Viewed by a Mineralogist. J. V. Smith, Pennsylvania State University. Summary. R. K. Scott, Harbison Walker Refractories Co.
SAC Holds Annual Meeting London—Membership of the Society for Analytical Chemists increased last year to 1917, it was announced a t the 85th annual meeting of the society, held here. T h e SAC and its various constituent groups had an active year with seven meetings on a wide variety of topics, two joint meetings and the I n t e r n a tional Symposium on Microchemistry, sponsored jointly b y the Midlands Sec tion and the Microchemistry G r o u p .
Introductory Remarks. Β. Γ. Scribner, National Bureau of Standards. Advances in Knowledge of Excitation Phenomena. G. H. Dieke, Johns Hopkins University. The Matrix Effect in Excitation. J. K. Hurwitz, U. S. Steel Corp. Effects of Gaseous Atmospheres on Excitation. G. Andermann and J. W. Kemp, Applied Research Laboratories. Some Properties of New or Modified Excitation Sources. M. Margoshes, Na tional Bureau of Standards. Symposium on Microscopy, June 25, 2:00 p.m.
Introduction. F . F. Moorehead, Amer ican Viscose Corp. Measurement with Phase and Interfer ence Microscopes. O. W. Richards, American Optical Co. Performance Characteristics of Objec tives, Eyepieces, and Illuminators for Microscopy. H. W. Zieler, Zieler Instru ment Co. Chemical Microscopy in the Optical Industry. G. C. Crossmon, Bausch & Lomb Optical Co. Study of Ore Minerals in Reflected Light. Ε. Ν . Cameron, University of Wisconsin. June 25, 8:00 p.m.
Application of Electron Microscopy in the Petroleum Industry. H. Allred, The Texas Co.
W h i t e Sulphur Springs, W . Va. Lewis B. Swift, Chairman of the Board of Directors, Taylor Instrument Co., Rochester, N . Y. ( l e f t ) , received the S A M A A w a r d during the 41st Annual Meeting of the Scientific Apparatus Makers Association. Richard E. W e l c h , W . M . W e l c h M f g . C o . , Chicago, and presi dent of S A M A , made the award. Swift was cited for his accomplishments in the scientific instrument industry VOL. 3 1 , N O . 6, JUNE 1959
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A
NEWS •Pat. App'd. for
KURDES,
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REFRIGERATED CENTRIFUGE Ά' Fully automatic rotor acceleration ^
Push button Electro-Dynamic Braking (smooth stopping)
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Shovm set up for continuous flow operation (Cover normally closed)
•jf Automatic unbalance Electrical Safety trip Ά· Accommodates new 3 liter capacity rotor (10,000 X G)
The model LRA is the first automatic refrig erated centrifuge of its kind. Like the nonautomatic Model LR. it has the newest and most efficient refrigeration design ever intro duced. By proper placement of cutouts, baffles and deflection plates, a smooth forced air cir culation system is set up. The warm air com: m< off the rotor flows around large surface area cooling coils on the side and bottom of the chamber. Upon emergence in the cooled form, the air flows onto all portions of the rotor. This system permits the cooling of any Lourdes' rotor from ambient to 0°C within ten minutes by spinning at slow speed. Rotor temperatures are easily maintained at 0°C and lower during full speed extended runs, and as low as —15' C at lesser speeds or for shorter runs. By merely throwing a toggle switch, a 1 Hp. . motor automatically accelerates any rotor to a , pie-set speed. Lourdes' electrodynamic push. button braking system provides for smooth rotor stopping in a fraction of unbraked stop; 'ping time. A time delay relay releases the braking action at slow speed and permits the K'tor to stop naturally without disturbing the - sediment. This same centrifuge is now avail. dble with a V4 Hp. motor drive (Model LRA-1) tu provide higher speed and force with the smaller rotors. Each centrifuge comes adapted to accom modate the new Lourdes' continuous flow sys tem at no additional cost. The continuous flow rotors with polyethylene liners, in addition to ease of operation, assembly and disassembly, also offer fast flow rate, high speed and force and greater collection capacity than any comi parable continuous flow centrifuge. New time ' saving applications for these rotors are being discovered daily. Every Lourdes" instrument is guaranteed for a period of one year and this guarantee in sures customer satisfaction.
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Circle No. 71 on Readers' Service Card 44 A
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ANALYTICAL CHEMISTRY
The Analytical Methods Committee expanded its activities, including new work on additives to animal and poul try feeds, pesticide residues in foods, chlorine in organic compounds, and methods of assay of crude drugs. A subcommittee is working on a publica tion of Standard Methods. With pub lication of "Recommended Methods for the Analysis of Trade Effluents," the joint committee with the Association of British Chemical Manufacturers dis banded. The SAC also published "Proceed ings of the Congress on Modern Ana lytical Chemistry in Industry," and a Decennial Index to The Analyst (194655). The number of subscribers to The Analyst and Analytical Abstracts showed an increase. The society showed an excess of in come over expenditures in all activities, including publications. The new president is R. C. Chirnside (see page 50 A, May).
ASTM Industrial Chemicals Committee Activated Organization of Committee E-15 on Analysis and Testing of Industrial Chemicals has effectively placed the ASTM in full scale activity in indus trial chemicals. For purposes of out lining the scope of the new committee, industrial chemicals are defined as single elements or compounds in vari ous stages of purity for consumption primarily by the chemical industry for further conversion. This scope will embody six main points: • Development or formulation of standard methods for analysis and test ing of industrial chemicals. • In cooperation with other groups, the coordination and reconciliation of chemical analytical methods for nonmetallic materials and chemicals that are broadly applicable. • Encouragement of the use of uni form methods of analysis. • Formulation of standards for no menclature, definitions, and methods of sampling pertaining to analysis and testing of industrial chemicals. • Establishment of precision and ac curacy of standard analytical and test methods for chemicals. • Encouragement of the establish ment of new product committees in the field of industrial chemicals when needs become evident. Specifications are excluded from the committee's scope. Projects will start immediately for developing temperature-density tables for many organic liquids of commercial
NEWS importance. Other projects under consideration are methods for analysis of functional groups and problems of acid-base titrimetry. A full-day session of the committee is planned for ASTM's annual meeting in Atlantic City, June 22 to 26, 1959.
Electron Microscope Meeting in September The 17th annual meeting of the Electron Microscope Society of America will be held Sept. 9 to 12 on the campus of Ohio State University, Columbus,
Ohio. The meeting will feature symposia on contributions of electron microscopy of viruses and cells to the problem of cancer, elementary techniques of electron microscopy from the point of view of experts, and problems in the electron microscopy of ceramic materials. Scientific and commençai exhibits are also planned. Information about the meeting and deadlines for contributions may be obtained from Sydney S. Breese, Jr., program chairman, EMSA, Plum Island Animal Disease Lab., Greenport^ L. I., New York.
FIRST: LOOK AT UNITR0N5 NEW POLARIZING MICROSCOPE Here is α precision measuring instrument for both orthoscopic and conoscopic observations, designed to meet the exacting requirements of science, education, and industry. Its many features make it ideal for work in chemistry, crystallography, mineralogy and biology as welt as in the technology of paper, glass, textiles and petroleum.
CHECK THESE OPTICAL & AIECHAUICAL FEATURES Note that UNITRON'S new Model MPS comes complete with optics and accessories and includes features usually associated only with much more costly models. • EYEPIECES: Micro 5X providing measurements to 0.0025mm. and cross-hair 10X. The eye lenses focus to produce sharp reticle images and are keyed to prevent rotation. •
OBJECT1VES:4X(N.A.0.1), 10X(N.A.0.25), 40Χ(Ν.Α.0.ό5), achromatic, strain-free, each with centerable mount.
• NOSEPIECE: quick-change type for critical centering. • CONDENSER and POLARIZER: three-lens condenser with upper elements on a swing-owt mounting, provides either parallel or convergent light. A dovetail-slide focusing mount and iris diaphragm insure optimum illumination and resolution. • POLAROID POLARIZER: rotatable through 360° and graduated every 45°. Plano-concave mirror. • ANALYZER: Polaroid, in sliding metal mount. • BERTRAND LENS: for the study of interference figures, fixed-focus lens is centerable and mounted în a slïdeway. • STAGE: diameter 115mm., revolves through 360°, graduated in degrees and reads to 6' with vernier. The top is calibrated in mms. in two directions and is drilled and tapped for an accessory mechanical stage. Stage clips. • COMPENSATORS: two compensators are included; a quarter-wave plate and first order red plate. These fit into a slot above the objective lens. • FOCUSING: coarse and micrometric fine adjustments.
1 frfs diaphragm i
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• STAND: heavy stand, arm inclines to horizontal position. Cendenier and Felarizer
THEN: LOOK AT THE PRICE! Model MPS complete as described, i n fitted cabinet
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ANALYTICAL CHEMISTRY
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Information on exhibits may be obtained from Walter J. Frajola, N205 North Wing, University Hospital, The Ohio State University, Columbus, Ohio.
NSF Fellowships Offered Applications will be accepted through Oct. 5, 1959, by the National Science Foundation for fellowships under the Senior Postdoctoral and Science Faculty Fellowship programs. Awards will be made in the mathematical, physical, medical, biological, and engineering sciences. Names of successful fellowship candidates will be announced on Dec. 7, 1959. To be eligible for one of the 75 Senior Postdoctoral Fellowships, candidates must be U. S. citizens with special aptitude for advanced training, and must have held the doctoral degree for at least 5 years or have equivalent education and experience. The 300 Science Faculty Fellowships are directed toward college teachers of science, mathematics, or engineering, who wish to improve their competence as teachers. These fellowships are open to citizens who hold a baccalaureate degree or its equivalent, have demonstrated ability and special aptitude for science teaching and advanced training, and have taught at the collegiate level as full-time faculty members for not less than three years and intend to continue teaching. Annual stipends to a maximum of $12,000—adjusted to match as closely as feasible the salaried income of the recipients—will be awarded under both of these programs. Fellows may engage in study and/or research at any accredited nonprofit institution of higher education in the U. S. or any nonprofit foreign institution of higher education. A limited allowance to aid in defraying the cost of travel for a Fellow and his dependents will also be available. Applications may be obtained from the Fellowship Section, Division of Scientific Personnel and Education, National Science Foundation, Washington 25, D. C. Completed materials must be received not later than Oct. 5, 1959. All applicants will be notified by letter on Dec. 7, 1959, as to the disposition of their applications.
NBS to Publish Four-Part Journal After July 1, 1959, the National Bureau of Standards will begin publishing its Journal of Research in four separate sections, corresponding to subject matter fields, which may be subscribed for individually. At the same time the editorial scope of the Journal is being
NEWS
broadened to cover the bureau's tech nical program as completely as pos sible. Other current publications changes include the initiation of two new nonperiodical publication series, M o n o g r a p h s and Technical Notes. T h e Journal of Research of the N a tional B u r e a u of S t a n d a r d s is t h e basic medium b y which the bureau reports its findings to the scientific community. T h e Journal contains comprehensive research papers which give complete details of the work, including labora tory data, experimental procedures, and theoretical and mathematical analyses. As now published, t h e content of the Journal is as broad as the bureau's scientific program, embracing most fields of the physical sciences as well as various branches of engineering. T h e division of the Journal into separate sections is an effort to meet more ef fectively the specialized needs of t o day's scientists, engineers, a n d m a t h e maticians. Henceforth the individual reader need subscribe only to those sec tions of the Journal t h a t fall within his particular field of interest. The Journal is being divided into the following sections, each available upon yearly subscriptions from the Super intendent of Documents, G o v e r n m e n t Printing Office, Washington 25, D . C , a t t h e prices indicated.
Leonard Greensburg, commissioner of New York City's Department of A i r Pollution C o n t r o l , points t o apparatus used in recent on-the-spot tests for carbon monoxide concentration due t o street traffic. The equipment, a Mine Safety Appliances Lira analyzer, was modified t o measure 0 t o 20 p.p.m. Test site above is located at the Manhattan end of the Queensborough Bridge Section A : Physics and Chemistry, 6 times a year, $4.00. Section Β : M a t h e m a t i c s and M a t h e matical Physics, quarterly, $2.25.
NOW . . . an automatic, recording CHROMATOGRAPHIC REFRACTOMETER
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up to 7 5 % No longer it it necessary f o r y o u t o p e r f o r m a l l t h e time-consuming w o r k associated w i t h chromatographic analysis. This differential r e f r a c t o m e t e r does a l l t h e w o r k — r e l i a b l y — accurately. S i m p l y start the test, a n d the analysis is m a d e a u t o m a t i c a l l y — u n a t t e n d e d . The final product . . . a n accurate, p e r m a n e n t recording of the results . . . a record you can e x a m i n e i m m e d i a t e l y or file for f u t u r e use. O p e r a t i o n is so simple that even y o u r most i n e x p e r i e n c e d personnel can p e r f o r m critical analyses w i t h ease. W h a t ' s m o r e , w h e r e g r e a t d i f f e r e n t i a l s a r e encountered the exclusive Phoenix r a n g e - e x t e n s i o n system permits set ting the indicator on scale w i t h o u t the a n noyance of changing cells . . . w i t h o u t upsetting the zero c a l i b r a t i o n . . . and w i t h o u t loss of sensitivity or accuracy. A single d i a l adjust ment is all that's r e q u i r e d . SEND FOR BULLETIN R-1000. No o b l i g a t i o n . For y o u r convenience, just a t t a c h this ad to y o u r l e t t e r h e a d — or w r i t e :
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ANALYTICAL CHEMISTRY
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A n a l y t i c a l Chemists in Industry "Utilization of Analytical Chemists in I n d u s t r y " will be the subject of one of the symposia at the fall meeting of the Division of Analytical Chemistry a t Atlantic City, Sept. 13 to 18. This symposium is being organized in a different m a n n e r t h a n t h a t nor mally used in the ACS so as to obtain more member participation. T h e meet ing will be scheduled for a 3-hour pe riod. T h e first hour will be devoted to six 10-minute discussions b y mem bers of the panel covering the follow ing points of view: a professor of analytical chemistry, an analytical chemistry graduate student, a research director, a director of analytical chem istry, a n industrial analytical chemist, administrative research management. T h e second hour will be round-table discussions a t individual tables of 8 to 10. E a c h table will have a discussion leader who will encourage the people at his table to discuss the subjects which have been brought out by the panel. E a c h table will be asked to develop questions which will be suit able to be asked of the panel during Hie third hour when the panel will be re sumed for a question and answer period.
NEWS George L. Royer, American Cyanamid Co., 30 Rockefeller Plaza, New York 20, Ν. Υ., is organizing the sym posium.
Unique Chemical Metering Pump A new metering pump with a flow range of 0 to 48 ml. per hour and an accuracy of ±0.1 ml. per hour has been developed at the General Motors Research Laboratories. While designed to operate laboratory-size thermal dif fusion columns in a continuous flow
m
manner, the device has other potential applications. These include product withdrawal from distillation or chroma tographic columns, feed control to re action systems, lubrication of machin ery, vial filling, and liquid dispensing. Design details for the pump appear in a four-page article in Industrial and Engineering Chemistry [Ind. Eng. Chem. 51, 495 (1959)]. The authors are C. R. Begeman and N. A. Hunstad of General Motors Corp. They report that several of these pumps have per formed satisfactorily in GM labora tories for four years at the top, bottom,
RAmOACTlVÉ Ν CH&./S s k l W f * L E S ' MEASURED: AUTOMATICALLY
and feed ports of thermal diffusion columns ranging in viscosity from 20 SUS (100° F.) to 6300 SUS (100° F . ) .
SAS Calls for Papers for Ν. Υ. Meeting A sectional meeting of the society for Applied Spectroscopy and an instru ment exhibition will be held at the Hotel New Yorker, New York City, Nov. 4 to 6. Papers are invited on emission and x-ray spectroscopy, mass spectroscopy, infrared and ultraviolet absorption, and gas chromatography. Title and abstracts of papers to be offered should be submitted before Sept. 1. Further information may be ob tained from M. F. Wilson, program chairman, Air Reduction Corp., Re search Laboratory, Murray Hill, N. J.
ISA Nuclear Symposium The Second National Symposium of the Nuclear Industry Division of the Instrument Society of America will be held June 24 to 26 at Idaho Falls, Idaho. The first and third days of the sym posium will be devoted to technical sessions on some of the latest develop ments in nuclear instrumentation. The second day, June 25, has been set aside for a tour of the Materials Testing Reactor, the Engineering Test Reactor, and the Chemical Process Plant at the Atomic Energy Commission's National Reactor Testing Station. Advance programs and registration forms are available from ISA, 313 Sixth Ave., Pittsburgh 22, Pa.
U. S. Scientists Visit USSR 31 32 33 3α 35 36 37 38 38 1 2
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Printed out information includes: sample number, time and code
T H E NEW BAI R D - A T O M I C Automatic S a m p l e Changer — a major improvement over conventional mecha nisms. Automatically programs, counts and records 50 pre-coded samples. Accuracy far greater than manual counting techniques. Magazine loading saves time and eliminates inter mixing. Each sample may be pre-coded to any one of four programs: " N " (normal operation), " B " (background or weak sample count), "R" (reject), or " L " (return to loading position). Maximum count accuracy is assured by complete "4·!Γ" shielding of the sample in the detector. For further information on Automatic Sample Changer and other systems, request B-A Catalog A-2
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50 A
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ANALYTICAL CHEMISTRY
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Several American scientists were in vited to present papers at a Symposium on Crystallography at Leningrad. The symposium, sponsored by the Soviet Academy of Sciences, commemorates the 40th anniversary of the death of E. C. Federov, famous Russian crystallographer. The meeting was scheduled for May 21 to 27. The Americans invited are: William Parrish, North American Philips Co., Inc.; W. H. Zachariasen, University of Chicago; L. O. Brockway, University of Michigan ; and Ray Pepinsky, Penn sylvania State University.
Smalley Check Sample Winners Cited Winners in nine classifications of the Smalley check sample series were an nounced at the American Oil Chemists' Society annual awards luncheon held in New Orleans recently. The competiCircle No. 149 on Readers' Service Card -
NEWS
Now you can use self-lubricating TEFLON® STOPCOCKS on an everyday basis! Kontes saves you money three ways on chemicallyinert* Teflon items! Increased production has low ered prices substantially on all Kontes Teflon Stopcocks and apparatus which incorporate them. You save, in fact, three ways by getting Teflon products from Kontes: by reduced indi vidual prices, by lower quantity prices, and by combining Teflon items with your regular orders for Kontes Technical Glassware for even greater discounts.
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tion, completing its 41st season, is con ducted annually b y AOCS to encourage accurate l a b o r a t o r y procedures in test ing of cottonseed, soybean, peanut, tal low and grease, vegetable oil, edible fats, glycerol, drying oil, and meal. T h e highest honor, the Smalley C u p , was presented b y A r m o u r and Co. t o E . R . H a h n , H a h n Laboratories, and D. B . M c l s a a c , K e r s h a w Oil Mill, for proficiency in determining moisture, oil, and nitrogen in meal. Winners of the other eight series received certificates of recognition. I n all, 4367 samples were distributed t o 494 collaborators to give about 15,000 results.
Standard Samples for Gases-in-Metals Eight b a r s of ferrous materials, whose oxygen and nitrogen content have been precisely determined, comprise a new t y p e of s t a n d a r d sample now available from the National Bureau of S t a n d a r d s . I n providing these reference materials for t h e calibration of commercial a p
Summer Symposium June 10 to 12 T h e 12th Annual Summer Symposium and ANALYTICAL C H E M I S T R Y will be held T h e p r o g r a m for t h e meeting has already t r a t i o n coupon below is for t h e benefit of
A A 2 4
2 3 2 4
10/25 10/25 12/30 17/40
4.50 4.50 6.90 9.20
of the Division of Analytical Chemistry a t University of Illinois, J u n e 10 to 12. a p p e a r e d (page 31 A, M a y ) . T h e regis those who plan to attend.
Preregistration C o u p o n — 1 2 t h A n n u a l Summer Symposium Division of Analytical Chemistry and Analytical Chemistry The University of Illinois, Urbana, III. June 10 to 12, 1959 Name (print) Business or Professional Connection Mail Address Street and Number City
Zone
State
Enclosed please find $ to cover the items checked below. payment is not necessary, but will facilitate registration.
Advance
( ( (
) Registration fee for ACS members and nonchemists $4.00 ) Registration fee for nonmember chemists or chemical engineers. 8 . 0 0 ) Room reservation in new Men's Residence Hall, two in double room, including married couples at $2.75 each per d a y ; limited number of single rooms at $4.00 per d a y . Dining room and cafeteria in these halls serving all three meals at $3.50 per d a y . These fees collected by University after arrival.
(
) Banquet at lllini Union on Thursday 3 .50 (Banquet fee to be collected by University after arrival but advance reservation essential)
K - 8 1 1 0 0 STRAIGHT STOPCOCK prices below are typical— Size Bore, mm. Plug size, mm. Each
2 3 J Τ
p a r a t u s used to measure the gas con t e n t of metals, the b u r e a u has inau gurated a program of s t a n d a r d samples for gases-in-metals covering a variety of metallurgical products. These reference materials, approxi mately 3 inches long and 1 inch in diameter, are necessary for the calibra tion of chemical analytical equipment used to measure the gas content of various kinds of commercial steels. W o r k is now in progress to develop s t a n d a r d samples for gases in t i t a n i u m . T h e new reference materials are cer tified only for the elements, oxygen, and nitrogen. However, the percentages of the other elements are given as a guide to the t y p e of iron or steel. T h e stand ards are available from the S t a n d a r d s Sample Clerk, National Bureau of S t a n d a r d s , Washington 25, D . C. T h e fee is $10.00 per sample. A certificate of analyses accompanying the materials lists the laboratories t h a t have coop erated in this effort, and t h e various methods t h a t have been utilized to de termine the gas content in metals.
*Teflon has almost universal chemical inertness.
