Preparation of PVC Membrane Gold (Ⅲ) Ion-Selective Electrode Based on Diantipyrylmethane-Aucl<sub>4</sub><sup>-</sup> and its Application

Zhang Wenfang; Du Rong

doi:10.13374/j.issn1001-053x.1986.02.014

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Article Navigation > Chinese Journal of Engineering > 1986 > 8(2): 138-142

Zhang Wenfang, Du Rong. Preparation of PVC Membrane Gold (Ⅲ) Ion-Selective Electrode Based on Diantipyrylmethane-Aucl4- and its Application[J]. Chinese Journal of Engineering, 1986, 8(2): 138-142. doi: 10.13374/j.issn1001-053x.1986.02.014

Citation:

Zhang Wenfang, Du Rong. Preparation of PVC Membrane Gold (Ⅲ) Ion-Selective Electrode Based on Diantipyrylmethane-Aucl₄^- and its Application[J]. Chinese Journal of Engineering, 1986, 8(2): 138-142. doi: 10.13374/j.issn1001-053x.1986.02.014

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Preparation of PVC Membrane Gold (Ⅲ) Ion-Selective Electrode Based on Diantipyrylmethane-Aucl₄^- and its Application

doi: 10.13374/j.issn1001-053x.1986.02.014

Received Date: 1985-09-30
Available Online: 2021-11-16

Abstract

Abstract

A new PVC Au (111) ion-selective electrode is reported in this paper, The sensor membrane is composed of diantipyrylmethane (DAM)-Aucl₄^- (10 mg),dibutyl phthalate (DBP) (0.2ml), PVC (170mg). The electrode exhibited Nernstian response in the CAuCl₄^- ranging fnm 6×10^-7 to 1×10^-2M with a slope of 58±1mV/pM (22℃) in the medium 0.5M HC1. The limit of detection is 3.2×10^-7M.The electrode that is used for three months continually remained good speciality. Trace gold in ores are collected and separated by foamed plastics, and are determined by this ion-selective electrode. The satisfactory results are obtained in determination of ores.