JENAER GLASWERK SCHOTT & GEN., INC

FAST DELIVERY! All Yours From TCI—The Organic Reagent Specialist. Organic Reagents ... Select the program and let it go! Variable program capabiliti...
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QUALITY! SELECTION! FAST DELIVERY! 2:00—147. Substoichiometric Isotope Dilution Analysis. K. Kudo. 2:40—148. Electrodeposition of the Actinide Elements onto a Tanta­ lum-Tungsten Cathode from an Ammonium Chloride Electrolyte. K. W. Puphal. 2:55—149. Substoichiometric Extrac­ tions of Molybdenum. T. Shigematsu, K. Kudo. 3:10—150. Determination of Strontium-89 and -90 in Soil With Total Sample Decomposition. D. B. Mar­ tin. 3:25—151. Simultaneous Determina­ tion Method of Radon and Thoron by Toluene Extraction-Liquid Scin­ tillation Counter. K. Horiuchi, Y. Murakami. 3:40—Intermission 3:55—152. Redox Substoichiometric Isotope Dilution Analysis of Antim­ ony in Metallic Zinc—A Compari­ son of Various Oxidants for Redox Substoichiometry. T. Kambara, J. Suzuki, H. Yoshioka, Y. Watanabe. 4:10—153. Application of the New Brunswick Laboratory (NBL) Potentiometric Method for Deter­ mining Uranium to Organic Ex­ tracts. L. Z. Bodnar. 4:25—154. Radiochemical Determina­ tion of Polonium-210 in Ores and Environmental Samples. R. P. Bernabee, C. W. Sill. 4:40—155. A Rapid Extraction Meth­ od for the Separation and Determi­ nation of Plutonium and Americium. R. P. Bernabee, D. R. Percival, F. D. Hindman.

FRIDAY MORNING Ilikai, Imperial Suite (2nd Floor) Symposium on Recent Advances in Nuclear Analytical Methods, V Joint with American Nuclear Society, Isotopes and Radiation Division and Analytical Chemistry M. M. Williamson, M. Koyama, Presiding

9:00—171. Use of Muonic X-Rays for Chemical Analysis. J. J. Reidy. 9:45—172. Chemical Structure Effects on Sulfur Muonic Lyman Series X-Ray Patterns. R. L. Hutson, J. D. Knight, J. J. Reidy, M. E. Schillaci, M. A. Yates-Williams. 10:00—173. Negative Muon Capture in Alkali Halides and Alkaline Earth Sulfides. M. E. Schillaci, J. D. Knight, C. J. Orth, R. A. Neu­ mann. 10:15—174. Isotopic Analysis of 239 Pu0 2 - 240 PuO 2 Mixtures Using Muonic X-Rays. R. L. Hutson, B. K. Barnes, D. A. Close, J. J . Ma-

All Yours From TCI—The Organic Reagent Specialist.

Τ C I

Organic Reagents Fine Organic Chemicals Rare Organic Chemicals Custom Synthesis

Since 1922, TCI (Tokyo Kasei) has supplied leading chemical laboratories and industries worldwide with a broad selection of fine chemicals. Our current catalog includes over 10,000 different chemicals for every type of use. Virtually all orders are shipped within 12 hours of receipt. Five-gallon, 55-gallon and ton lots are available. Be sure of setting quality, selection and fast delivery. Buy TCI! Write today for your free copy of the 750-page TCI Organic Chemicals Price List.

T C I TOKYO KASEI KOGYO CO., LTD. (Tokyo Chemical Industry Co., Ltd.) 9-4, Nihonbashi-Honcho 3-chome, Chuo-ku, Tokyo, 103 Japan Telex: 222-4719 ASACMN J Cable: ASACHEMCO TOKYO Tel: 241-0861 CIRCLE 206 ON READER SERVICE CARD

VISCOSITY

Automated Measuring Saves Lab Time. If you measure viscosity with the capillary method, there's a SCHOTT AVS System for you. If you don't, maybe you should. The fully automated AVS/PA will test up to 30 different samples without operator supervision. Select the program and let it g o ! Variable program capabilities include: number of rinses, number of repeat measurements, test temperature, sample temperature conditioning period, suction rates and more. Standard-temperatures up to 150°C; High Temperature-up to 220°C. Measuring accuracy 0.1 % with a range up to 30,000cSt. Semi-Automated models also available. Building block concept allows expansion from basic unit to fully automated unit.

SCHOTT

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JENAERGLAS JENAER GLASWERK SCHOTT & GEN., INC.

11 EAST 26TH STREET, NEW YORK, N.Y. 10010/ (212) 679-8583 CIRCLE 188 O N READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 5 1 , NO. 3, MARCH 1979 · 363 A