Issue 12, 2002

Investigations on nature of re-volatilization from atom trap surfaces in flame AAS

Abstract

Some experiments were designed and performed in order to elucidate the mechanism of re-volatilization in silica traps using flame AAS. A water-cooled U-shaped silica trap and a slotted silica tube trap were used, while organic solvent aspiration was employed for re-volatilization. Analytes were Bi, Au, Mn, Cd and Pb. The detailed experiments have shown that heating is not necessarily associated with re-volatilization: however, a direct contact between flame and active silica surface is required. The effect of the critical C/O value in the flame was also investigated and found to be important.

Article information

Article type
Paper
Submitted
08 Aug 2002
Accepted
24 Oct 2002
First published
04 Nov 2002

J. Anal. At. Spectrom., 2002,17, 1610-1614

Investigations on nature of re-volatilization from atom trap surfaces in flame AAS

D. Korkmaz, S. Kumser, N. Ertaş, M. Mahmut and O. Yavuz Ataman, J. Anal. At. Spectrom., 2002, 17, 1610 DOI: 10.1039/B207788D

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