Speciation of Chromium in Seawater by ICP-AES with Dual Mini-columns Containing Chelating Resin
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Accession number;06A0028785
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| Title;Speciation of Chromium in Seawater by ICP-AES with Dual Mini-columns Containing Chelating Resin |
| Author;
SUMIDA TAKASHI
(Kochi Prefectual Industrial Technol. Center, Kochi, Jpn)
SABARUDIN AKHMAD
(Okayama Univ., Okayama, Jpn)
OSHIMA MITSUKO
(Okayama Univ., Okayama, Jpn)
MOTOMIZU SHOJI
(Okayama Univ., Okayama, Jpn)
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Journal Title;Anal Sci
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Journal Code:G0673B
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ISSN:0910-6340
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VOL.22;NO.1;PAGE.161-164(2006)
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| Figure&Table&Reference;FIG.4, TBL.2, REF.13 |
| Pub. Country;Japan |
| Language;English |
| Abstract;A method for the preconcentration and speciation of chromium in seawater was developed. On-line preconcentration and determination were carried out by using inductively coupled plasma atomic emission spectrometry (ICP-AES) with dual mini-columns containing a chelating resin. In this system, Cr(III) was collected on the first column. The effluent containing residual chromium from the first column was collected on the second column after passing through a reduction-switching unit, in which the reducing agent was introduced, or not, for the reduction of Cr(VI) to Cr(III). Cr(VI) was determined as the difference between the concentration of pre-reduced Cr(VI) and Cr(III) in the effluent from the first column. The detection limits for Cr(III) and Cr(VI) were 0.04 and 0.09 .MU.g l'-1', respectively. (author abst.) |
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