Detection of Trace Amounts of Toxic Metals in Environmental Samples by Laser-excited Atomic Fluorescence Spectrometry

Results for the direct determination of trace amounts of Pb and Cd in Antarctic and Greenland ancient ice and recent snow by laser-excited atomic fluorescence spectrometry (LEAFS) are presented. The whole procedure starting from field sampling, mechanical decontamination of the samples in an ultra-c...

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Bibliographic Details
Published in:J. Anal. At. Spectrom.
Main Authors: Bolshov, Mikhail A., Koloshnikov, Vsevolod G., Rudnev, Sergei N., Boutron, Claude F., Görlach, Ursula, Patterson, Clair C.
Format: Article in Journal/Newspaper
Language:English
Published: Royal Society of Chemistry 1992
Subjects:
Antarctic
Greenland
Antarc*
Online Access:https://authors.library.caltech.edu/29679/
https://authors.library.caltech.edu/29679/1/BOLjaas92.pdf
https://resolver.caltech.edu/CaltechAUTHORS:20120309-153857293
Description
Summary:Results for the direct determination of trace amounts of Pb and Cd in Antarctic and Greenland ancient ice and recent snow by laser-excited atomic fluorescence spectrometry (LEAFS) are presented. The whole procedure starting from field sampling, mechanical decontamination of the samples in an ultra-clean laboratory and final analysis of the decontaminated samples is described. The measured concentrations varied in the ranges 0.1–3 pg ml^(–1) for Cd and 0.3–30 pg ml^(–1) for Pb. The results for direct analysis by LEAFS agree favourable with those obtained by isotope dilution mass spectrometry and electrothermal atomic absorption spectrometry, which require time-consuming pre-treatment and pre-concentration stages.

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