Chemistry: analytical and immunological testing – Metal or metal containing – Oxide or gas content of metal
Patent
1981-01-05
1982-12-28
Marcus, Michael S.
Chemistry: analytical and immunological testing
Metal or metal containing
Oxide or gas content of metal
422 80, 436 73, G01N 3100
Patent
active
043659691
ABSTRACT:
A method for quantitative analysis of the chemical composition of an inorganic material comprising extraction of the element being determined from a sample of the inorganic material into the gas phase by treating the sample with a reagent that forms, with the element being determined, a volatile halide that is quantitatively analyzed in the gas phase. The method of this invention enables the determination of a broad range of elements. It is possible to determine one, two and more elements in a single experiment. The method is highly sensitive. The lower limit of detection of elements is 10.sup.-5 to 10.sup.-7 %. The accuracy of determination of elements present in concentrations of 10.sup.-5 to 10.sup.-6 % ranges from 15 to 30%.
REFERENCES:
Analytical Chem. of Phosphorous; V. I. Vernadsky Inst. of Geochem. & Analyt. Chem.; Moscow, 1974.
An Analysis of Gases in Metals; Turovtseva et al.; U.S.S.R. Academy of Sciences, 1959 .
The Analytical Chem. of Fluorine; Nikolaev et al.; U.S.S.R. Academy of Sciences, 1970.
The Analytical Chem. of Silicon; Myshlayeva; U.S.S.R. Acad. of Sciences.
Oxid. Vacuum Fusion-Is a New Method for the Deter. of Carbon in Metals; Karpov; Moscow, 1974.
Kinetics and Thermodynamics of Interaction of Gases with Molten Metals, Nauka Pub. Moscow, 1974.
Burylev Boris P.
Glavin German G.
Karpov Jury A.
Kartsev Valentin E.
Kovalev Gennady G.
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