A simplified test tube method for the analysis of ... - ACS Publications

Works In non-Newtonian, Newton- ian and nonflowing (plastics, gels, semi-gels) materials. •. Small-sample (1 cc), hot-or-cor- rosive-sample, tempera...
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NEW BOOKS Measurement Philosophy of the Pilot Program for M a s s Calibration. P .

E . Pontius. NBS Technical Note U a y 1966. 39 pages. 30 cents.

288.

The Pilot Program places emphasis In the performance of the measurement process and its ability t o produce wnsistent measurements. This program requires participating laboratories to have, or have access to, a pair of kiogram mass standards and suitable sensitivity weights which have been re:ently calibrated by XBS. The program is being tested by standards labxatories and will be expanded t o indude both Government and Industry facilities. Electrochemical Analysis: Studies of Acids, Bases, and Salts by EMF, Conductance, Optical, and Kinetic Methods July 1965 to June 1966.

Roger G. Bates, Xational Bweau of Standards Technical Note 400. Sept. 1966. 96 pages. 55 cents. This report summarizes the activities sf the SI39 Electrochemical Analysis section for the past year. Microchemical Analysis Section: Summary of Activities July 1965 to June 1966. John K . Taylor, Editor. 'VBS Technical A-ote 403. x 79 pages 1966. 50 cents.

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Alcohol to Asphalt range-System measures viscosities from less than 1 to 64,000,000 centipoises. * Works in non-Newtonian, Newtonian and nonflowing (plastics, gels, semi-gels) materials. * S m a l l - s a m p l e (1 c c ) , hot-or-corrosive-Sam ple , t e m p e rat u re-controlled and sealed-from-atmosphere capabilities. * Easy to use-Just immerse, start, read. * Direct-reading in centipoises, a b solute units most useful to others. e Readily portable-Easiiy maintained. e Accurate to rf: 1 % of full scale. Backed by service far beyond the sale. 0

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This report summarizes the program and activities of the Microchemical Analysis Section of the Analytical Chemistry Division of NBS. Selected Values of Chemical Thermodynamic Properties, Par* 2, Tables fer the Elements TwentyThree through Thirty-Two in the Standard Order of Arrangement.

D. D. Tl'agman, et al.

62 pages. NBS Technical Note 270-2. X a y 1966. 40 cents.

The tables contain values, where known, of the enthalpy and Gibbs energy of formation, enthalpy, entropy and heat capacity at 298.15' K. (25' C.), and the enthalpy of formation a t 0" K., for all inorganic substances, aqueous solutions, and organic molecules containing not more than two carbon atoms. This is the second in this series: the first part contained tables for the first twenty-three elements and their compounds (NBS Technical Note 270-1). Processing of Counting Data.

P. C.

Stevenson. Lawrence Radiation Laboratory, Livermore, Calif. vi 167 pages. NAS-hrS-3109. 1966. 81.76.

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ENGINEER ING LABORATORIES, INC. Stoughton 31, Massachusetts Circle No. 26 on Readers' Service Card

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ANALYTICAL CHEMISTRY

Counting data, the result of measure-

ments on amount and kind of radiation emanating from a radioactive sample, are considered in this publication. The monograph is designed to be a handy reference manual of various ways of treating and interpreting counting data. Delermination of Aluminum, Silicon, Iran, Uranium, and Thorium in Beryllium by X-Ray Fluorescence.

G. E . Wolden. A . D. Condrey, Un4ion Carbide's Oak Ridge Y-12 Plant. 22 pages. 1966. Y-16@, $2. (microfiche, 60 cents).

Charta relating intensity ratio of xray emission t o weight per cent composition enable accurate determination of the following alloying elements or impurities within the following limits in beryllium metal: aluminum, O.O-l.O% ; silicon, 0.0-0.25; iron, 0.0-0.50%; uranium, 0.001-0.05%; and thorium, 0.001-0.05%. A Semiautomatic Infrared Analyzer for Serum Triglycerides and Cholesterol Esters. A'. K . Freeman,

Lawrence Radiation Laboratory, Berkeley, Calif. 16 pages. 1966. VCRL-16880. $1 (microfiche, 50 cents).

A prototype instrument demonstrates the feasibility of automating the analysis of mixtures of triglycerides and cholesteryl esters. The method is based on high-resolution infrared spectrophot ometry. A Simplified Test Tube Method for the Analysis of Total Cholesterol and Glycerides in Human Serum.

D. F . Wease, et al., Aerospace Xedical Division (SA;lf-TR-66-53), Brooks AFB, Texas. 16 pages. 1966 AD-636 73.4. S I . (microfiche, 60 cents).

9rapid and reliable test tube method of extraction-separation is described. The method eliminates the separate steps ordinarily required in the extraction of lipids. Activation Analysis with Charged Particles. R . S. Tilbury, Union Car-

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bide Gorp., Tuxedo, AT. Y . v .@ pages. 1 ~ k h \ T S - 3 1 1 0 , 1966. $1.

A review of charged-article activation analysis is presented. Charged particles are compared and contrasted with uncharged particles for activation analysis and a brief discussion is giren of the machines ai-ailable for particle acceleration. Thick and thin targets are compared followed by the specific use in activation analysis of protons, deuterons, helium-3 ions, alpha particles, tritons, and recoil particles in a nucIear reactor.