ANALYTICAL CHEMISTRY
N e w Members Appointed to ANALYTICAL CHEMISTRY'S Advisory Board W
ASHINGTON, D .
C.
The
rotation
policy followed with respect t o members of t h e Advisory Board of ANALYTICAL
CHEMISTRY
brings
five
new members to t h e 15-member board. T h e new members a r e : D r . R . N . Adams, University of K a n s a s ; D r . G. H . Ayres, University of T e x a s ; D r . P . B . Hamilton, Alfred I . d u P o n t Instit u t e of t h e N e m o u r s Foundation ; D r . W. H . Reinmuth, Columbia University; and D r . J . K . Taylor, National Bureau of S t a n d a r d s . T h e retiring members, who have served for three years, are D r . C. E . Bricker, College of Wooster; D r . D . D .
R. N. ADAMS
DeFord, Northwestern University; D r . W. B . Àlason, University of Rochester; D r . F . W. Mitchell, Jr., Grace Research C e n t e r ; a n d D r . B . F . Scribner, N a tional Bureau of S t a n d a r d s . The other 10 members are D r . J . F . Barney I I , Midwest Research Instit u t e ; D r . E . C. Dunlop, E . I . du P o n t de N e m o u r s & Co.; D r . J. C. Giddings, University of U t a h ; D r . R. F . Goddu, Hercules Powder Co., I n c . ; D r . H . V. M a l m s t a d t , University of Illinois; D r . M . L. Moss, Aluminum Co. of America; D r . J . D . Neuss, Merck & C o . ; D r . L. B . Rogers, P u r d u e University; D r . Irving Shain, University of Wisconsin;
G. H. AYRES
Ralph N . A d a m s . D r . Adams is an associate professor of chemistry at t h e University of Kansas, Lawrence, Kansas. D r . Adams was born in Atlantic City, N . J., in 1924. H e received his B.S. from Rutgers University in 1950 a n d his P h . D . from Princeton University in 1953. His thesis involved t h e use of constant current in electroanalytical methods. D r . Adams was an instructor in chemistry a t Princeton from 1953 t o 1955, a t which time he worked on solid electrode \ r oltammetry a n d mechanisms of electrode reactions. These studies resulted in several new solid electrode systems which have proved useful in analytical as well as electrode mechanism studies. D r . Adams joined t h e faculty a t the University of K a n s a s as an assistant professor in chemistry in 1955 a n d was made an associate professor in 1958. His recent work has been with t h e electron spin resonance techniques in conCircle No. 18 on Readers' Service Card
P. B. HAMILTON
D r . Sidney Siggia, Olin Mathieson Chemical Corp. The editorial advisory board, established in t h e 1940's is of groat assistance to t h e editors. I t meets formally with the editors once a year. This meeting, plus informal contacts a t ACS National Meetings, and t h r o u g h personal contacts a n d correspondence, provides a source of suggestions on policy and p u b lication programs, timely topics for feature articles, a n d re\dews. T h e board also serves as an informal liaison between editors and readers. Brief biographical sketches of t h e new members a p p e a r below.
W. H. R E I N M U T H
junction with electrochemistry. Other interests include rotated disk electrodes for determination of heterogeneous rate constants of electron transfer processes a n d cyclic v o l t a m m e t r y . Dr. Adams has authored or coauthored over 40 original papers relating to electrochemistry. Gilbert H . A y r e s . D r . Ayres is a prof essor of chemistry a t t h e University of Texas, Austin, Texas. Gilbert H . Ayres was born in Indiana in 1904. H e received t h e B.A. degree in 1925 from Taylor University. I n his senior year he was winner of a national award in t h e chemistry essay contest sponsored b y Francis P . G a r v a n and the American Chemical Society. After t w o years of teaching, he entered graduate school a n d received t h e P h . D . degree in 1930 from t h e University of Wisconsin, where he continued for one year as a n instructor in chemistry. I n 1931 he joined the chemistry faculty of Smith College, a n d
J . K. TAYLOR
became chairman of t h e d e p a r t m e n t in 1942. A sabbatical leave in 1939 was spent with D r . H . H . Willard a t the University of Michigan. I n t h e summer of 1942 he was employed as a chemist a t P r a t t a n d W h i t n e y Aircraft Corporation. I n 1943 he was commissioned in t h e U . S. N a v a l R e serve, in which he served on active d u t y for more t h a n three years as an anti-submarine warfare instructor. He now holds t h e rank of C a p t a i n in t h e Naval Reserve. I n 1947, D r . Ayres joined the University of Texas faculty as an associate professor, a n d was promoted t o a full professor in 1951 ; he was chairm a n of t h e d e p a r t m e n t from 1950 t o 1952. H e served as a graduate a d viser from 1957 to 1961, a n d as d e p u t y chairman of t h e d e p a r t m e n t in 196061. H e has been C h a i r m a n of t h e Central Texas Section of t h e American Chemical Society, a n d is currently a member of t h e G r a d u a t e Level E x aminations Committee. F r o m 1959 t o VOL. 35, NO. 1, JANUARY 1963
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NEWS 1961 he was a member of the Advisory Panel for Chemistry of the National Science Foundation. Dr. Ayres has contributed more than 00 articles to the professional journals in the fields of colloid chemistry and in spectrophotometric analytical methods. Ho is the author of "Quantitative Chemical Analysis," a textbook used in many colleges and universities. His principal research interests are in spectrophotometric methods and the analytical chemistry of the platinum elements. Paul B. Hamilton. Dr. Hamilton is a biochemist with the Alfred I. du Pont Institute of the Nemours Foundation, Wilmington, Del. Dr. Hamilton was born in 1909 in Toronto, Ont., Canada, and received his undergraduate and graduate training in Canada. He received his M.D. and his Ph.D. (in biochemistry) from the University of Toronto in 1935 and 1940, respectively. Prior to joining the Du Pont staff he was associated with Dr. D. D. VanSlyke at the Rockefeller Institute for Medical Research and engaged in amino acid chemistry and physiology and clinical chemistry, including hemoglobin chemistry, and ion exchange chromatography. Dr. Hamilton is a member of ACS, AAAS, American Association of Clinical Chemists, American Society of Experimental Biological Medicine, Harvey Society, New York Academy of Sciences, and American Society of Biological Chemists. William H. Reinmuth. Dr. Reinmuth is an associate professor in chemistry at Columbia University, New York City. Dr. Reinmuth received his A.B. (1952) and M.S. (1954) degrees from the University of Chicago and his Ph.D. from M I T in 1957. Since that time he has been on the staff of the chemistry department of Columbia University as instructor (1957 to 1960), assistant professor (1960 to 1961), and associate professor (1961—). His research interests are in the field of electroanalytical chemistry. He has published over thirty papers on this subject. Dr. Reinmuth is a member of Sigma XI, Phi Lambda Upsilon, ACS, and the Electrochemical Society, and he is an Alfred P. Sloan Fello\v (1962 to 1964). John K. Taylor. Dr. Taylor, whose entire 32-year professional career has been with the National Bureau of
Standards, has recently been appointed Chief of the Applied Analytical Research Section of the Bureau's Analytical and Inorganic Chemistry Division. Born in Mt. Ranier, Md., in 1912, Dr. Taylor received his B.S. in chemistry from George Washington University in 1934. He received his M.S. and Ph.D. from the University of Maryland in 1938 and 1941, respectively. He joined the Bureau in 1929 as a laboratory aide and after a seven-year period in the Optical Instruments Section, he transferred to the Chemistry Division as a physical chemist. A major part of Dr. Taylor's work has been concerned with the application of physical methods to chemical analysis, including the polarographic method. Recently, he has conducted research in coulometric methods of analysis. Dr. Taylor has written numerous papers on these subjects and in 1960 was awarded the Dept. of Commerce Silver Medal in "recognition of his contributions to accurate electrochemical methods of analysis." Other areas of research interest are refractometry, methods of separation of isotopes, and a program for providing a series of uranium isotope standards. Dr. Taylor has also been an active supporter of science education. He is editor of The Reporter, a news-letter for science and mathematics teachers. Dr. Taylor is a past chairman of the Chemical Society of Washington and past vice-president of the Washington Academy of Sciences, and is a member of the American Association for the Advancement of Science, the Philosophical Society of Washington, the Electrochemical Society, Sigma Xi, and Alpha Chi Sigma.
Gas Chromatographic Analysis of Steroids Boston University School of Medicine has announced a course, "A Practical Course in the Gas Chromatographic Analysis of Steroids in Biological Materials," to be held at 80 East Concord St., Boston, Mass, from January 14 to 19, 1963. The course, directed by H. H. Wotiz, is designed for persons with some knowledge in gas chromatography or in steroid chemicals analysis. The course will be limited to 20 persons; the fee is $100. Technical sessions will take up 14% of the time, while the remaining 86% of the time will be devoted to practical laboratory sessions. Application forms are available from Dr. H. H. Wotiz, Boston University School of Medicine, 80 East Concord "St., Boston 18, Mass.
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V O L . 3 5 , N O . 1 , JANUARY
1963
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LABORATORY MYDRAULIC
PRESSES FROM
NEWS
4th OCEANS Program T h e program for t h e F o u r t h Omni bus Conference on t h e Experimental Aspects of Nuclear Magnetic Reso nance Spectroscopy has been an nounced. T h e conference will t a k e place at t h e Mellon I n s t i t u t e , P i t t s burgh, Pa., F e b r u a r y 28 to M a r c h 2. T h e program will consist of four 90minute sessions on each of the three days. P r o g r a m topics with session chairmen are listed below. M o r e in formation m a y be obtained by writing to C. W. Wilson I I I , Research and Development Dept., Union Carbide Chemicals Co., South Charleston, W . Va. Program T h u r s d a y , F e b r u a r y 28
L-30
HYDRAULIC
New Broadline H M R Techniques, Problems, and Applications. D . I. Bolef. NMR in Solids Other than Polymers. T. J. Rowland. NMR in Polymers (General). D. W. McCall. New N M R Applications. R. S. Codrinaton.
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Friday, March 1 NMR Instrumentation: Shortcomings and Maintenance. (To be announced). New Developments in N M R Instru mentation. Ε. Β. Baker. High Resolution NMR in Polymers. P. A. Bovey.
NMR Relaxation Meiboom.
Phenomena.
S.
Saturday, March 2 Double Resonance. J. D. Baldesehwieler. N o n - Η 1 N M R Spectra and Special Techniques. (To be announced). A-60 Type Instruments and Quantita tive N M R Measurements. B. L. Shapiro. NMR Spectra Analysis. C. A. Reilley.
Gas Chromatography in Forensic Chemistry A meeting on t h e application of gas c h r o m a t o g r a p h y to toxicology and forensic chemistry will be held at t h e Louisiana State Police Training b a r racks in B a t o n Rouge on J a n u a r y 31 and F e b r u a r y 1, 1963. T h e meeting is jointly sponsored b y t h e Louisiana S t a t e Police crime lab and MicroTek Instruments, Inc. T h e meeting will consider t h e a p plications of gas c h r o m a t o g r a p h y t o the detection of b a r b i t u r a t e s , a m p h e t a mines, and tranquilizers; applications in detecting materials in blood or tis sue; in identifying flammable igniters, such as gas, diesel fuel, etc., in arson cases; a n d in t h e analysis of m i n u t e particles of paint. Interested peace officers throughout the country are invited to a t t e n d t h e meeting. M o r e information can be ob tained by writing Lee Herzberg, Jr., P. O. Box 2151, B a t o n Rouge, L a .
PRESS
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ANALYTICAL CHEMISTRY
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Dr. Mary Warga, Secretary of the Optical Society of America, was the recipient of the Annual Medal of the New York Section, Society for Applied Spectroscopy. This is an annual award for outstanding achievements in spectroscopy. She is shown here being presented with the medal by Sidney Kodama of the American Cyanamid Co., past president of the New York Section, during the Fourth Annual Eastern Analytical Symposium, November, New York City
BRISKEAT
American Nuclear Society Meeting The American Nuclear Society held its winter meeting, November 26 to 28 in Washington, D. C. Concurrently, the Atomic Industrial Forum held its annual conference; and the AtomFair, sponsored by both organizations, pre sented exhibits from over 85 industrial and governmental concerns. Some of the new instruments applicable to neu tron activation analysis and related techniques, exhibited at the fair, are mentioned in the New Products section of this issue. A broad range of fields was covered by about 260 papers related to the peaceful uses of atomic energy and presented by scientists from this coun try and abroad. Especially notable were papers on the use of radioisotopes in studying problems on earth and in space. Radioisotopes, used to trace surface water, measure stream flow, study underground water circulation, determine the speed and drift of seafloor current, and estimate the amount of water needed for a given unit of electricity in hydroelectric power were discussed by original contributors. The application of radioisotope techniques to air pollution studies, determination of elements on the moon's surface, and detection of microorganisms on other planets was included in sessions related to space problems. There were also seven papers on nuclear activation analysis in forensic science. The ex treme sensitivity and accuracy of these techniques make them especially use ful in many aspects of crime detection. Technical information on this meet ing is available in a paperbound book ($7), "ANS Transactions," Vol. 5, No. 2, dated November 19, 1962. For this book, write to Octave DuTemplc, 244 East Ogden Ave., Hinsdale, 111.
Teaching Microscopy A symposium on "Teaching Micros copy in the Courses Making Use of It," sponsored by the New York Mi croscopical Society, will be held at the American Museum of Natural His tory, 77th St. and Central Park West, New York City, February 1 and 2. Sessions will meet Friday evening and Saturday morning and afternoon. Reg istration is $2. While the sympo sium consists of invited speakers, the purpose throughout is to promote dis cussion, questions, and answers from the floor. Further information is avail able from Dr. T. G. Rochow, Cyanamid Research Laboratory, 1937 W. Main St., Stamford, Conn.
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Circle No. 130 on Readers' Service Card V O L . 3 5 , N O . 1 , JANUARY 1 9 6 3
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NEWS
German Meeting The Analytical Chemistry Division of the Society of German Chemists will meet April 24 to 27 in Erlangen with the German Committee for Spectro chemistry and the Division of Mass Spectroscopy of the German Physical Society. To contribute, write Gesellschaft Deutscher Chemiker, 6 Frank furt/Main 9, Postfach 90075 before Dec. 20.
International Pesticides Congress The Vth International Pesticides Congress to be held in London, July 17 to 23, 1963, will include special ses sions on pesticide residue analysis. Papers will be concerned with modern analytical methods, special emphasis being given to those techniques having wide application to current problems. Introductory addresses to this topic will be given by Dr. H. Hurtig, Can ada, Dept. of Agriculture and Dr. D. T. Lewis, U. K. Government Chemist and will be followed by separate, consecu tive sessions on the following subjects: Clean-up Processes (including oxygenflask combustion) ; Biological and Enzymatic Methods ; Infrared Meth ods ; Chromatographic Methods ; and Electro-analytical and Other Methods. Further details may be had by writing Vth International Pesticides Congress, Honorary Secretary, 14 Belgrave Square, London S. W. 1, England.
International Congress The X l X t h International Congress of Pure and Applied Chemistry will meet July 10 to 17, 1963, in London, England. In addition to the scientific program there will be a special ex hibition of British laboratory appara tus and instruments. The scientific program will consist of some 20 invited Congress lectures and a wide range of contributed papers on the following topics: organic chemistry, inorganic chemistry, analytical chemistry, and applied chemistry. The invited speak ers on analytical chemistry are I. P. Alimarin, Moscow, U.S.S.R., R. J. Living, Ann Arbor, Mich., and A. Ringbom, Abo, Finland. The subjects in the analytical sessions are trace analysis, separation methods, electroanalysis, and teaching of analytical chemistry. Requests to contribute a paper must be submitted on a special form not later than January 21, 1963. Forms and more information may be had by writing: IUPAC Fund," Di vision of Chemistry and Chemical Technology, National Research Coun cil, National Academy of Sciences, 2101 Constitution Ave., Washington 25, D. C.
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Circle No. 22 on Readers' Service Card V O L . 3 5 , N O . 1, JANUARY 1 9 6 3
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NEWS May 19 to 24—11th Annual Conference on Mass Spectrometry and Allied Topics. Sheraton-Palace Hotel, San Francisco, Calif. Sponsor: ASTM Committee E-14. Contact: N . D . Coggeshall, Gulf Research & Development Co., P.O. Drawer 2038, Pittsburgh 30, Pa. Page 56 A, Dec. May 20 to 23—14th Annual Mid-America Spectroscopy Symposium. Sponsor: Chi cago section and six other Mid-America sections of t h e Society for Applied Spectros copy. Contact: J. E. Forrette, R o y C. Ingersoll Research Center, Borg-Warner Corp., Des Plaines, 111. Page 48 A, Nov. May 20 to 23—International Symposium on Humidity and Moisture. Sheraton-Park Hotel, Washington, D . C. Contact: Arnold Werler, National Bureau of Standards, Washington 25, D. C. Page 49 A, Oct. July 10 to 17—XlXth International Congress of Pure and Applied Chemistry. London, England. Contact: IUPAC Fund, Division of Chemistry and Chemical Technology, National Research Council, National Academy of Sciences, 2101 Con stitution Ave., Washington 25, D. C. Page 47 A, Jan. July 17 to 23—Vth International Pesticides Congress. London, England. Includes special session on pesticide residue analysis. Contact: Vth International Pesticides Congress, Honorary Secretary, 14 Belgrave Square, London S. W. 1, England. Page 47 A, Jan. July 22 to 26—Microscopy Symposium, Brighton, England. McCrone Research I n stitute Contact: Mrs. Elizabeth Bitoy, McCrone Research Institute, 451 East 31st St.. Chicago 16, 111. Page 52 A, Dec.
Quality Control The 16th annual basic short course, "Quality Control by Statistical Meth ods," will be given by the Division of University Extension of the University of Illinois, Urbana, 111., from January 28 to February 7, 1963. Intensive work will be supplied in the fields of control charts, acceptance sampling, and related topics. For further in formation, write Prof. John A. Henry, Mechanical Engineering Bldg., Univer sity of Illinois, Urbana, 111.
44th Norelco X-Ray School The 44th Norelco X-Ray Analytical School will be held at the Henry Hud son Hotel, New York City, during the week February 4 to 8, 1963. Those interested in the applications of x-ray diffraction, diffractometry, and spectrography techniques are invited to register. There is no charge but ca pacity is limited. For more informa tion, write lo Philips Electronic Instru ments, 750 South Fulton Ave., Mount Vernon, Ν. Υ.
Rare Earth Conference The Third Rare-Earth Conference will lie held April 21 to 24, 1963, at the Grand Bahama Hotel on Grand Ba hama Island (near Miami, Fla.). The four-day meeting, devoted to the physics, chemistry, and metallurgy of these elements and their compounds and alloys, may be attended by per sons actively engaged in the areas of research covered by the meeting. Manuscripts of papers, for which the deadline is February 1, and requests for further information should be ad dressed to the Conference chairman,
wanted... more candidates
Dr. Karl S. Vorrcs, Dept. of Chem istry, Purdue University, Lafayette, Ind.
ASTM Committee Week The American Society for Testing and Materials' Committee Week and razor-sharp analysis... Spring Meeting will be held February of each of the five elements here, all at 4 to 8 at the Queen Elizabeth Hotel in the same time, from t h e same sample, Montreal, Canada. Highlight of the is r u n - o f - t h e - m i l l for t h e Technicon® meeting will be the first ASTM Lec M u l t i c h a n n e l F l a m e Spectrometer. D e terminations down t o 1.0 p p m for Mg— ture on Outstanding Research pre 0.01 p p m for C a - 0 . 0 1 p p m for N a . All sented by Dr. Cyril Stanley Smith, with b a c k g r o u n d rejection so stringent Massachusetts Institute of Technology. that it comes u p with answers u n d e r Dr. Smith will discuss "Some Out noisy conditions so severe as t o p u t standing Historical Metallurgical Re lesser spectrometers completely o u t of searches." t h e running. More than 1000 scientists and engi neers are expected to attend the week's w h a t bothers us, though, isprogram. Over 150 meetings will be those e m p t y spaces in the " b i n g o " card held by some 16 ASTM technical com above. So great is t h e reserve of this mittees. In addition, there will be an r e m a r k a b l e instrument that taking t h e informative technical session on "Ap m e a s u r e of the classic Alkali Q u i n t e t plication of Statistics to Testing," spon all at once —taxes it n o t at all. W i t h sored by ASTM Committee E - l l on e q u a l a p l o m b it c a n s i m u l t a n e o u s l y Quality Control of Materials, which analyze a n y a d d e d b u r d e n . . . twenty, thirty, fifty...of a n y kind of materials will be held on February 6 at 2:30 p.m. that can be excited by a h o t flame. Other technical subjects covered at in dividual committee meetings include magnetic properties, corrosion of nong o t a n y c a n d i d a t e s for spec ferrous metals and alloys, electrodepostrometry... however far out...that you'd ited metallic coating and related fin like u s t o investigate for y o u ? J o t ' e m ishes, gypsum, natural building stones, d o w n in t h e blank boxes above, tear out and mail to the address below o r . . . porcelain enamel, coal and coke, rubber tell us in a letter...better still, p h o n e u s : and rubber-like materials, carbon black, O W e n 3-1000 collect. (If you don't feel halogenatcd organic solvents, methods like going that far, m a y b e Technicon of testing, fire tests of materials and Bulletin M F S 1 will give you some ideas. constructions, nondestructive testings, D o send for it.) fatigue, and radioisotopes and radia tion effects. Everyone interested in attending the lecture, technical sessions, and luncheon meetings is invited. More information may be had by writing to H. H. Hamil ton, American Society for Testing and Materials, 1916 Race" St., Philadelphia 3, Pa. Research Park • Chauncey, N e w York
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V O L . 3 5 , N O . 1 , JANUARY 1 9 6 3
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NEWS
Spectroscopy Symposium The 11th Annual Southeastern Sym posium on Spectroscopy, sponsored by the University of Florida and the Southeastern Association of Spectrographers will be presented at the Uni versity of Florida, Gainesville Fla., from January 21 to 24. Registration costs $20 which includes the annual banquet. Applications of Masers to Optical Emission Spectroscopy will be the major theme this year. Dr. T. A. Welton, Senior Scientist in the Physics Division at Oak Ridge National Lab oratory will present three lectures deal ing with the theory of lasers and masers with particular reference to spectroscopy. Frederick Brech, vice president and director of research for Jarrell-Ash will present three lectures on the applications of lasers to spec troscopy. Dr. V. A. Fassel, Iowa State University will present lectures con cerned with the effect of environment on the spectroscopic properties of flames and electrical discharges. Dr. Marvin Margoshes of the National Bureau of Standards will give three lectures on the following topics: De termination and Application of Atomic Transition Probabilities; Factors Af fecting Precision and Accuracy in the Spectroscopic Analysis of Solutions; and Design of Plasma Jet and GasStabilized Arc Sources. Further information on this sym posium may be obtained by writing to W. T. Tiffin, Metallurgical Research Laboratory, University of Florida, Gainesville, Fla.
Radioactive Isotope Applications A special conference, "Oak Ridge Radioisotope Conference-Applications to Physical Science and Engineering," will meet April 1 to 3, 1963, in Gatlinburg, Tenn. The conference is spon sored by the Oak Ridge Institute of Nuclear Studies, ORNL, and the Iso topes and Radiation Division of the American Nuclear Society, in coopera tion with the U. S. Atomic Energy Commission. Conference plans call for general papers to be presented on the first day, with special sessions de\'oted to physi cal science research and engineering ap plications on the following two days. The physics and chemistry sessions will include analytical procedures, exchange reactions, reaction rates, molecular structure, diffusion processes, colloid
and surface studies, catalysis, and re lated topics. More information is available from Oak Ridge Institute of Nuclear Studies, P. 0. Box 117, Oak Ridge, Tenn.
Industry Items
ACCESSORIES INCREASE CAPABILITIES OF THE MODEL 202 SPECTROPHOTOMETER
Beckman Instruments, Inc., has acquired Stevens-Evans, Inc., San Diego, Calif., manufacturer of spe cialized electronic test and control in struments for laboratory, industrial and space-defense applications. Principal products include a line of solid-state digital voltmeters and solid-state AC line conditioners and regulators. Devco Engineering, Inc., Caldwell, N. J., has completed a plant expansion to house additional production and re search facilities for manufacture of gas analyzers, sampling systems, and associ ated instrumentation. Fisher Scientific Co. has opened a new branch office at 690 Miami Circle, N.E., Atlanta 5, Ga. The new service center will stock laboratory instru ments, appliances, and reagent chemicals. Gallard-Schlesinger Chemical Mfg. Corp., has been appointed the exclu sive distributor in this country of Serva (Germany) cellulose products used for ion exchange, column, and thin layer chromatography. Greiner Scientific Corp., 22 North Moore St., New York, Ν. Υ., has an nounced the merger of the Greiner organization with Palo Laboratory Supplies, Inc. The new company is said to be the largest laboratory supply house in the New York area. The Millipore Filter Corp. of Bed ford Mass., has opened a technical serv ice laboratory in Temple City, Calif., to serve chiefly as a training facility for users of Millipore filters and ap paratus. The laboratory is completely equipped for work in contamination analysis and control, microbiology, cytology, sterilizing filtration, fluid cleaning, and other fields. Standard Chemical Products, Inc., manufacturer of textile chemicals, will build new facilities for research and technical service at its Hobokcn, N. J., location. Henry Troemner, Inc., 22nd and Master Sts., Philadelphia, Pa., has purchased all rights to the Gorrell and Gorrell Monodrum Kymograph which will now be known as the Troemner Monodrum Kymograph.
By using accessories which Perkin-Elmer has de veloped
specifically
Spectrophotometer,
for
its Model
202
UV-ViS
you can quickly equip
this
inexpensive instrument for assignments of an ad vanced nature. Among the auxiliary devices avail able are the f o l l o w i n g : Repetitive Scan Accessory (illustrated)
enables
the operator to re-scan any selected segment of an absorption spectrum automatically at regular time
intervals—30 seconds, 5 minutes, 00 min*
utes or 10 hours full scale. Single-Beam Readout Accessory permits Model 202 to operate in the single beam mode for in vestigating sources, for flame photometry or for absolute calibration w i t h external sources. The versatility and adjustability of the unit enable it to meet a broad range of experimental conditions. Time Drive Accessory, designed to record absorbance vs time ίη the Model 202, can be used to follow the kinetics of a chemical reaction at any predetermined wavelength in the normal range of the
instrument.
Standard
motors
(easily
inter
changeable in the laboratory) offer choice of these scan times: 2, 8 or 32 minutes; 1 or 4 hours. Other speeds are available on special order. For full details on Model 202 and its accessories, write to Instrument Division, Perkin-Elmer Corpora tion, 7 5 1 Main Avenue, Norwalk, Connecticut.
PERKIN-ELMER Circle No. 186 on Readers' Service Card
50 A
·
ANALYTICAL CHEMISTRY
Circle No. 183 on Readers' Service Card
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