Apparatus and methods for sample enrichment for flameless atomic

Details Apparatus and methods for sample enrichment for flameless atomic Apparatus and methods for sample enrichment for flameless atomic

1979-09-24

1981-10-20

Yasich, Daniel M.

Chemistry: physical processes

Physical processes

Crystallization

356 36, 356312, 422 80, G01J 302, G01N 3102

Patent

active

042958547

ABSTRACT:
Disclosed are methods and apparatus for concentrating a looked-for element from a solution for flameless atomic absorption spectroscopy. The tip of an electrode is dipped into a sample vessel containing the solution and an electric current is passed through the electrode and solution to electrodeposit the components of the solution on the electrode. The electrode with the electrodeposition is removed from the sample vessel and inserted into the graphite tube. The tube is then heated and the sample components electrodeposited on the electrode are atomized for analysis by the measuring beam of the atomic absorption spectrometer.

REFERENCES:
patent: 3662604 (1972-05-01), Low et al.
patent: 3671129 (1972-06-01), Wiedeking
patent: 3681212 (1972-08-01), McKissick
patent: 3824016 (1974-07-01), Woodriff et al.
patent: 4111051 (1978-09-01), Tamm et al.
Publ. . . . "Pre-Electrolysis with . . . Absorption Spectrometry . . . etc." by G. Torsi Annalic de Chimica 67/1977 pp. 557-566.

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