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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 52, Number 4
JKCSEZ 52(4)
August 20, 2008 

Solid Phase Extraction of Copper(II) from Aqueous Solutions by Adsorption of its 2-propylpiperidine-1-carbodithioate Complex on Alumina Column

알루미나 컬럼에서 2-propylpiperidine-1-carbodithioate 착체의 흡착에 의한 수용액중에서 구리(II)의 고상추출
Ali Moghimi*, Reza Ghiasi

Ali Moghimi*, Reza Ghiasi
구리(II), 고상추출, 알루미나, Polyethylene glycol, 2-propylpiperidine-1-carbodithioate , Copper(II), Solid phase Extraction, Alumina, Polyethylene Glycol, 2-propylpiperidine-1-carbodithioate
시료용량, 간섭이온 등의 여러 인자의 효과에 대한 자세한 연구를 하였다. 흡착된 착체를 polyethyleneglycol-황산 혼합물로 쉽게 용출할 수 있었고 구리의 농도를 가시선분광기로 검출하였다. 구리(II)의 검정곡선은 0-1 μgmL-1에서 선형이 였고 검출한계는 5 μgL-1를 얻었다. 25의 가장 높은 전처리농도 인자는 알루미나 배드흡착제의 지지체로 그래스울을 사용하여 250 mL 시료양에서 얻을 수 있었다. 구리(II)를 니켈, 코발트, 황산염, 질산염 이온들로 부터 효과적으로 분리할 수 있었고, 이 방법은 전기도금 폐기수와 스파크된 물시료에서 성공적으로 구리의 회수에 적용하였다.

A novel approach has been developed for the solid phase extraction of copper(II) based on the adsorption of its 2-propylpiperidine-1-carbodithioate complex on alumina column. The effect of various parameters such as acidity, sample volume, interfering ions, etc., were studied in detail. The adsorbed complex could be easily eluted using polyethylene glycol-sulfuric acid mixture and the concentration of copper has been determined using visible spectrophotometry. The calibration graph was linear in the range 0-1 μgmL-1 copper(II) with a detection limit of 5 μgL-1. A highest preconcentration factor of 25 could be obtained for 250 mL sample volume using glass wool as support for the alumina bed adsorbent. Copper(II) could be effectively separated from other ions such as nickel, cobalt, zinc, chloride, sulfate, nitrate, etc., and the method has been successfully applied to study the recovery of copper in electroplating waste water and spiked water samples.

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