The Study of Pb2+ Determination with Extracted and Cyclic Voltammetry at the Liquid/Liquid Interface

Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (1): 79-83. Previous Articles Next Articles

Original Articles

液/液界面萃取循环伏安法测定Pb2+离子研究

谢少艾¹，贾金平*^,2，张卫¹

(¹上海交通大学化学化工学院上海 200240)
(²上海交通大学环境科学与工程学院上海 200240)

投稿日期:2007-04-28 修回日期:2007-08-08 发布日期:2008-01-14
通讯作者: 谢少艾

The Study of Pb2+ Determination with Extracted and Cyclic Voltammetry at the Liquid/Liquid Interface

XIE Shao-Ai¹ JIA Jin-Ping*^,2 ZHANG Wei¹

(¹School of Chemistry and Chemical Technology, Shanghai Jiaotong University, Shanghai 200240)
(²School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240)

Received:2007-04-28 Revised:2007-08-08 Published:2008-01-14
Contact: ShaoAi Xie

Abstract

In this paper, the ammonium pyrrolidinyldithiocarboxylate(APDC)- methyl isobutyl ketone (MIBK) chelated-extract system was used. APDC chelated with Pb2＋ in solution, and then extracted into organic phase with MIBK. The cyclic voltammetric behavior of Pb-APDC complex at the liquid/liquid interfaces has been studied with classic three-electrode. The process was controlled by diffusion and irreversible, Pb2＋ complex transferred from organic phase to water. The transfer peak potential appeared at 0.16V vs.SCE, and the linear relative between 1.0×10－5mol/L～9.0×10-5mol/L and peak currents. Based on this, a reliable and sensitive method can be developed for the on-line and in-situ determination of Pb2＋ in industrial waste water.

Key words: liquid/liquid interface, cyclic voltammetry, Pb^2＋ ion, methyl isobutyl ketone, ammonium pyrrolidinyldithiocarboxylate

Cite this article

XIE Shao-Ai JIA Jin-Ping*^,2 ZHANG Wei. The Study of Pb2+ Determination with Extracted and Cyclic Voltammetry at the Liquid/Liquid Interface[J]. Acta Chimica Sinica, 2008, 66(1): 79-83.

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液/液界面萃取循环伏安法测定Pb2+离子研究

The Study of Pb2+ Determination with Extracted and Cyclic Voltammetry at the Liquid/Liquid Interface

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