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UV/spray chamber for generation of volatile photo-induced products having enhanced sample introduction efficiency

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1039/b517884c
AuthorSearch for: 1; Search for: 1; Search for: 1ORCID identifier: https://orcid.org/0000-0002-2377-2615
Affiliation
  1. National Research Council Canada. NRC Institute for National Measurement Standards
FormatText, Article
Abstract
A combined spray chamber/UV photolysis unit is described which is shown to substantially enhance sample introduction efficiency for several elements in the presence of 1–5% concentrations of formic, acetic and propionic acids. Enhancement factors of 2–40-fold were achieved for Ag, As, Se, Sb, Hg, I, Bi, Pb and Sn when the aerosol field within the cyclonic chamber produced during conventional concentric nebulizer sample introduction was illuminated by an axially placed 6 W mercury pen lamp. UV photolysis of the organic acids likely initiates radical reactions, generating volatile analyte species.
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  • Journal of Analytical Atomic Spectrometry 21, no. 3: 263–265.
LanguageEnglish
Peer reviewedYes
NRC numberNRC-INMS-3208
NPARC number8898709
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Record identifierdc399cac-15c6-4288-a471-43b905051dd5
Record created2009-04-22
Record modified2020-04-22
Date modified: