Sorption and atomisation of metallic hydrides in a graphite furnace

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DOIResolve DOI: http://doi.org/10.1039/JA9870200719
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TypeArticle
Journal titleJournal of Analytical Atomic Spectrometry
ISSN0267-9477
Volume2
Issue7
Pages719722; # of pages: 4
AbstractIntroduction of volatile hydrides of As, Sb, Sn, Pb and Bi into a pre-heated graphite furnace results in their thermal decomposition and deposition on to the graphite tube surface. Characterisation of the subsequent atomic absorption signals with respect to appearance temperatures and Arrhenius energies has shown that the mechanisms of atomisation of As, Sb, Se and Sn are the same for both the hydride deposits and those resulting from the conventional introduction of these elements in aqueous solutions. For Pb and Bi, atomisation of the hydride-deposited samples appears to originate with the reduced metal, in contrast to the thermal decomposition of oxides which occurs for aqueous samples of these elements. Auger electron microprobe spectroscopy and electron microscopy with energy-dispersive X-ray fluorescence were also used to characterise the sample deposits.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
Identifier10391186
NRC number1254
NPARC number8896778
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Record identifier0ed9f3c6-e82e-4682-bb31-df979fae14f7
Record created2009-04-22
Record modified2016-05-09
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