Determination of Anions in Rain Water by Capillary electrophoresis.
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概要
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In the rain water analysis, developments of rapid analysis methods have been required.<BR>In this paper, we examined a rapid analysis of anions in rain water using capillary electrophoresis (CE) .<BR>The analytical time for three anions (Cl<SUP>-</SUP>, NO<SUB>3</SUB><SUP>-</SUP>and SO<SUB>4</SUB><SUP>2-</SUP>) in rain water by the CE method, was within 3 min, whereas the analytical time for the three anions by ion chromatography (IC) as a standard method, was necessary at least 8 min.<BR>Correlation coefficients between CE and IC were over 0.99. The coefficient of variation of retention time in IC method was slightly smaller than that of migration time in CE method.<BR>These results suggest that the CE is a useful method for the analysis of components in rain water for its rapidity and reproductivity.
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