9:05
0:25 9:45 10:05 10:25 11:10 11:30
GAS
(58) Polarography of Metal-Catechol Complexes. The Simultaneous Determination of Vanadium-Nickel and Molybdenum - Tungsten Mixtures. J. W. MILLER, Phillips Petroleum Co. (59) Polarographic Estimation of Niobium. It. E. Kirby and H. FREISER, The University of Arizona. (60) Electroanalytical Chemistry of Lower Oxidation States of Osmium. L. Meites and It. E. COVER, Poly technic Institute of Brooklyn. EXPOSITION RECESS. " (61) A. C. Polarography. G. C. BARKER, Atomic Energy Research Establishment, Harwell. (62) Chronopotentiometry of Methylene Blue. J. Pavnter and W. H. REINMUTH, Columbia University. (63) Phase Selective A. C. Polarography at Stationary Electrodes. D. E. Smith and W. H. REINMUTH, Columbia University.
CHROMATOGRAPHY—INSTRUMENTATION
never before possible!
THIN LAYER
1HMUHUH
Tuesday Morning—Ball Room H. A. Barnett, Presiding 8:30
(64) Separatory Chromatograph for Automatically Collecting Fractions for Infrared Analysis. P. Λ. WILKS, JR. and C. W. WARREN, Connecticut Instrument Corp. 8:45 (65) Photoelectrically-Excited Argon Ionization Detector. It. A. FOSTER, Beckman Instruments, Inc. 9:00 (66) Theoretical Interpretation of Hydrogen Flame Ionization Detector Response. AV. S. GALLAWAY, 1). T. Jj. Jones, and J. C. Sternberg, Beckman Instruments, Inc. 9: 15 (67) Far Ultraviolet Spectrophotometer as a Detector for Gas Chromatography. AV. I. KAYE, Beckman In struments, Inc. 9:30 (68) Total Analysis Digital Readout for Chromatograph. F. W. Karasek and M. C. BURK, Phillips Petroleum Co. !) : 4.5 (69) Ultra High Purity Hydrogen Source for Use in Gas Chromatography. 10. J. SERFASS, Milton Roy Co. 10:00 E X P O S I T I O N RECESS. 10:20 (70) Monitoring Gas Chromatography for H 3 - and C14Labeled Compounds by Liquid Scintillation Counting. H. J. DUTTON, Northern Regional Research Laboratory. 10:40 (71) High Temperature Chromatography with Ionization Detection. L. V. GUILD and J. Swartzel, Burrell Corp. 10:55 (72) Application of Recorders to Gas Chromatography. H. L. DANEMAN and G. S. Talbot, Leeds and Northrup Co. 11:10 (73) Total Analysis of Furnace Atmosphere. N. Bren ner, H. J. MAIER, O. C. Karpathy, and D. It. Bresky, Perkin-Elmer Corp. 11:25 (74) Electronic Integrator for Use in Gas Chromatog raphy Measurements. L. V. DAVIDSON, R. D. Eanes, J. U. Evnon, and J. A. Callahan, Leeds and Northrup Co. 11:40 (75) Linear Programmed Temperature Gas Chromato graph Operable to 1000° C. for Organic or Inorganic Separations. C. B. E LISTON and A. J. Martin, F & M Scientific Corp. 11:55 (76) Effect of Restrictions in Large Columns Used for Gas Chromatography. J. W. AMY, Lynn Brand, and W. Baitingcr, Purdue University.
introducing the new "TL" method after Stahl A major innovation in Adsorption Chroma tography. " 7 1 " is the abbreviation for the Thin Layer of adsorbent (specially prepared Silica Gel G) which constitutes the "open micro c o l u m n " (250 « thickness). With " T L " rapid chromatographic separa tion on a MICRO scale of many compounds, especially LIPIDS, barbiturates, alkaloids, s t e r e o i d s , a n d o t h e r s is now f e a s i b l e . Preparation for a test is fast and simple. Required sample volume is from 1 to 10 mm 3 ,
quantities from 0.1 to 500 gamma.
Evaluation is by radioactive tracing methods or staining by spray reagents. The latter can be highly aggressive—permitting the use of reagents not suited to other methods of chromatography. Major applications for " T L " are in Pharmacy
ANALYTICAL
CHEMISTRY—GENERAL
Tuesday Afternoon—Terrace Room R. P. L Hartley, Presiding 1:30
(77) Pyrohydrolytic Separation and Determination of Fluoride in Raw Materials. M. J. NARDOZZI and L. L. Lewis, United States Steel Corp. 1:50 (78) Extraction of the Cupferron Complex of Niobium. J. F . R E E D , Westinghouse Electric Corp. 2:10 (79) Determination of Tungsten in Niobium. R. T. VAN SANTEN, AArah Chang Corp. 2:30 (80) Spectrophotometric Determination of Boron in Steel and High Temperature Alloys. YV. L. KARPEN, Carpen ter Steel Co. 2:50 EXPOSITION RECESS. 3:10 (81) Schiiniger Oxidation for Determining Metals in Motor Oils and Additives. J. G. BERGMANN, American Oil Co. 3:30 (82) Determination of Silica in Alumina. J. B. Mooney and F. J. BOWES, Kaiser Aluminum and Chemical Corp.
Toxicology Biochemistry Clinical Chemistry Organic (fat) Chemistry For full information, bibliography, and prices request bulletin " T L " .
BRINKMANN INSTRUMENTS, INC. 115 Cutter Mill Road, Great Neck, N.Y. Philadelphia · Cleveland · Houston · Miami · Menlo Park. Cal. Circle No. 21 on Readers' Service Card VOL. 33, NO. 2, FEBRUARY 1961
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