Stibine preconcentration in a quartz trap with subsequent atomization in the quartz multiatomizer for atomic absorption spectrometry
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, vol.19, no.2, pp.255-259, 2004 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 19 Issue: 2
- Publication Date: 2004
- Doi Number: 10.1039/b308883a
- Journal Name: JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.255-259
- Middle East Technical University Affiliated: No
Abstract
A preliminary evaluation of a simple (bare) quartz tube trap for collection of SbH3 and for volatilization of trapped analyte with subsequent atomization in a multiple microflame quartz tube atomizer (multiatomizer) for atomic absorption spectrometry is presented. The influence of relevant experimental parameters on the collection/volatilization efficiency was investigated. The parameters studied Were: collection temperature and time, volatilization temperature and flow rates of air and hydrogen for the volatilization. Under optimized conditions, the collection/volatilization efficiency was 65%. For the collection time of 120 s (sample volume of 8 ml), the detection limit was 3.9 pg ml(-1), and the analytical plot was linear up to 1.25 ng ml(-1). Possible ways of improving the performance of the set-up as well as the collection/volatilization efficiency are suggested.