XPS Characterization of Bi and Mn Collected on Atom-Trapping Silica for AAS-Reference-Cited by-同舟云学术

XPS Characterization of Bi and Mn Collected on Atom-Trapping Silica for AAS

Published:1999-04 Issue:4 Volume:53 Page:479-482
ISSN:0003-7028
Container-title:Applied Spectroscopy
language:en
Short-container-title:Appl Spectrosc

Author:

Süzer Ş.¹,Ertaş N.¹,Ataman O. Y.¹

Affiliation:

1. Department of Chemistry, Bilkent University, 06533 Ankara, Turkey (Ş.S.); and Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey (N.E., O.Y.A.)

Abstract

The chemical state of analyte species collected on a water-cooled silica tube during atom-trapping atomic absorption spectrometric determination is investigated with the use of X-ray photoelectron spectroscopy (XPS) for Bi and Mn. Analysis of the Bi 4f7/2 peak reveals that the chemical state of Bi is +3 during initial trapping (before the atomization stage), but an additional 0-valence state of Bi is also observed after the atomization stage. With the use of the measured Mn 2p3/2 binding energy together with the observed 3s multiplet splitting, the chemical state of Mn is determined as +2 in all stages. Together with our previous determination of 0 valence for Au, it is now postulated that the stability of certain valence states of the three elements (Au, Bi, and Mn) on the silica matrix can be correlated to their electrochemical reduction potentials.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

Link

http://journals.sagepub.com/doi/pdf/10.1366/0003702991946776

Reference15 articles.

1. An investigation of atom collection phenomena in the atomic absorption spectrometry of copper

2. Some observations on the mechanisms of atomization in atomic absorption spectrometry with atom-trapping and electrothermal techniques

3. In situ pre-concentration in flame atomic spectrometry

4. Direct determination of lead in alcoholic drinks and waters by flame atomic absorption spectrometry using an atom-trapping technique

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