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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 32, Number 3
JKCSEZ 32(3)
June 20, 1988 

Studies on the Elution Behavior and the Simultaneous Analysis of Some Metal-Dithiocarbamate Chelates by Reversed-Phase High Performance Liquid Chromatography

역상 액체 크로마토그래피에 의한 몇가지 금속-Dithiocarbamate 킬레이트의 용리거동 및 동시분석에 관한 연구
Dai Woon Lee, Yun Je Kim, Hyun Chul Kim, Won Lee

이대운, 김연제, 김현철, 이원
역상 액체 크로마토그래피에 의하여 몇 가지 금속-dithiocarbamate(DTC) 킬레이트의 용리거동을 Novapak C18과 μ-Bondapak C18 분리관을 사용하여 연구하고, 아울러 동시 분리정량에 미치는 pH, 진탕시간, 흐름속도, 추출용매 종류 및 이동상의 세기등 여러가지 인자들의 영향을 조사 검토하였다. 미량 금속-DTC 킬레이트들은 Novapak C18 분리관에서 acetonitrile/methanol/water 또는 acetonitrile/water의 용리액을 사용하여 성공적으로 분리되었다. 모든 금속-DTC 킬레이트의 용매세기 인자는 0 ≤ log k' ≤ 1 의 범위임을 확인하였고, 회수율을 97.0-106.7 %, coefficient of variation은 0.98-3.41%이었다. 최적 분석 조건에서 합성 시료중에 있는 혼합 금속 이온들은 상대 오차 ±6.7 % 이내에서 동시 분리정량이 가능하였다.

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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