Atomic absorption analysis of solid river suspended matter and sorption concentrates

A direct simultaneous atomic absorption method for the determination of trace heavy metals (Cd, Pb, Tl, and Hg) in solid sea and river suspended matter and sorption concentrates has been suggested (without chemical preparation of the samples). Two stages of the preliminary fractional evaporation of...

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Bibliographic Details
Published in:Oceanology (Washington. 1965) 2011-06, Vol.51 (3), p.502-505
Main Authors: Oreshkin, V. N., Tsizin, G. I.
Format: Article
Language:English
Subjects:
Absorption
Cadmium
Earth and Environmental Science
Earth Sciences
Evaporation
Freshwater
Heavy metals
Lead
Marine
Marine Geology
Mercury
Oceanography
Rivers
Sorption
Spectral analysis
Trace elements
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Summary:A direct simultaneous atomic absorption method for the determination of trace heavy metals (Cd, Pb, Tl, and Hg) in solid sea and river suspended matter and sorption concentrates has been suggested (without chemical preparation of the samples). Two stages of the preliminary fractional evaporation of the solid samples (at temperatures of 700–1000°C and 1500–2000°C) were used. The simultaneous atomization of both condensates was carried out in electrothermal atomizers including two evaporation zones. The approaches proposed make it possible to determine the volatile Hg and the less volatile Cd, Pb, and Tl at the level of the background concentration.
ISSN:0001-4370
1531-8508
DOI:10.1134/S0001437011030179