Sorption of arsenic, bismuth, mercury, antimony, selenium and tin on dithiocarbamate loaded polyurethane foam as a preconcentration method for their determination in water samples by simultaneous inductively coupled plasma atomic emission spectrometry and electrothermal atomic absorption spectrometry

Solid-phase extraction on a dithiocarbamate loaded polyurethane sorbent column gave sorption recoveries of antimony, arsenic, bismuth, mercury, selenium and tin of more than 97 per cent for 150 ml water samples at pH 4.5 and up to 3 per cent sodium chloride concentration. For antimony, arsenic, bism...

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Bibliographic Details
Published in:Analyst (London) 1997, Vol.122 (3), p.243-246
Main Authors: ARPADJAN, S, VUCHKOVA, L, KOSTADINOVA, E
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Exact sciences and technology
Spectrometric and optical methods
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Summary:Solid-phase extraction on a dithiocarbamate loaded polyurethane sorbent column gave sorption recoveries of antimony, arsenic, bismuth, mercury, selenium and tin of more than 97 per cent for 150 ml water samples at pH 4.5 and up to 3 per cent sodium chloride concentration. For antimony, arsenic, bismuth, and selenium, quantitative solid-phase extraction was achieved over pH 0.5-5. The analytical potential of the subsequent simultaneous analyte determination in methanol eluates by ICP-AES allowed detection of 3 ug arsenic and selenium per litre, 8 ug bismuth per litre, 0.12 ug mercury per litre, 2 ug antimony per litre and 6 ug tin per litre in water samples. Subsequent analyte determination in isobutyl methyl ketone eluates by ETAAS allowed the detection of 0.06 ug arsenic and selenium per litre, 0.1 ug bismuth and tin per litre, 0.08 ug selenium per litre and 0.3 ug mercury per litre.
ISSN:0003-2654
1364-5528
DOI:10.1039/a606917g