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KMID : 1059519880320030211
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Journal of the Korean Chemical Society
1988 Volume.32 No. 3 p.211 ~ p.226
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Studies on the Elution Behavior and the Simultaneous Analysis of Some Metal-Dithiocarbamate Chelates by Reversed-Phase High Performance Liquid Chromatography
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Lee Dai-Woon
Kim Yun-Je
Kim Hyun-Chul
Lee Won
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Abstract
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Liquid chromatographic behavior of several metal ions in dithiocarbamate(DTC) chelates were investigated by reversed phase high performance liquid chromatography on Novapak C18 and μ-Bondapak C18 columns. The optimum conditions for the separation of DTC-metal chelate were examined with respect to the pH, shaking time, flow rate, extraction solvent, and mobile phase strength. The metal ions in mixtures at trace level, chelated with some dithiocarbamate derivatives were separated successfully on Novapak C18 column using acetonitrile/methanol/water or acetonitril/water mixtures as mobile phases. It was found that all DTC metal chelates studied were eluted in an acceptable range of capacity factor values (0 ≤ log k' ≤ 1). Although several foreign metal ions were coexisted, high recovery and good precision were attained ; 97.0-106.7 % for the recovery and 0.98-3.41% for the coefficient of variation. Under the optimum analytical conditions, trace metal ions in the composite water samples were determined sucessfully with in relative error of about ±6.7 %.
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