Chemistry: physical processes – Physical processes – Crystallization
Patent
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.
Bodenseewerk Perkin-Elmer & Co. GmbH
Giarratana S. A.
Hays R. A.
Masselle F. L.
Yasich Daniel M.
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