Reduction of metal oxides by carbon in graphite furnaces. Part 1. Temporal oscillations of atomic absorption in the process of slow evaporation of Al, Bi, Cr, In, Mg, Mn, Pb, Sb, Sn and Te oxides

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DOIResolve DOI: http://doi.org/10.1039/a901850f
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TypeArticle
Journal titleJournal of Analytical Atomic Spectrometry
ISSN0267-9477
Volume14
Issue7
Pages10191024; # of pages: 6
AbstractTemporal oscillations in the kinetics of carbothermal reduction of oxides of 10 elements (Al, Bi, Cr, In, Mg, Mn, Pb, Sb, Sn and Te) have been observed by electrothermal atomic absorption spectrometry. Microgram amounts of the elements, as their nitrates, were evaporated with slow heating of the graphite tube. With the exception of Al, Cr and Mn, these oscillations were observed for the first time. Some of the features of this phenomenon are described, including the effects of sample mass, acidity of the solution, nature of the graphite substrate, the influence of the presence of Sr and the type of sheathing gas (He and Ar) on the characteristics of Al spikes. Similar results were obtained in two different laboratories.
Publication date
LanguageEnglish
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedNo
Identifier10391186
NRC number180
NPARC number8898265
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Record identifier68689467-6a93-47d8-af49-02405eebce14
Record created2009-04-22
Record modified2016-05-09
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