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本文对新合成的试剂４－对甲苯基－１－对苯磺酸钠硫代氨基脲（４－ｐ－ｍｅｔｈｙｌｐｈｅｎｙｌ－１－（ｓｏｄｉｕｍ－ｐ－ｐｈｅｎｙｌｓｕｌｐｈｏｎａｔｅ）ｔｈｉｏｓｅｍｉｃａｒｂａｚｉｄｅ（简称ｐＭＰＴ）与Ｃｕ（Ⅱ）的配合物进行了研究，发现在０．００６％Ｔｗｅｅｎ－８０的ＮＨ３－ＮＨ４Ｃｌ溶液中，配合物于－０．６３Ｖ（ｖｓ．ＳＣＥ）处产生一灵敏的吸附波，峰电流与Ｃｕ（Ⅱ）浓度在５～１１０ｎｇ／ｍＬ范围内有线性关系，检测限为３ｎｇ／ｍＬ，应用于人发、硫酸镍中铜的测定，均得到了满意的结果。试验了多种表面活性剂的影响，测得配合物组成为Ｃｕ（Ⅱ）∶ｐＭＰＴ＝１∶３，条件稳定常数β＝５．５４×１０１７，并对该体系的极谱波性质及其反应机理进行了探讨。
In this paper, the new synthetic reagent 4-p-methylphenyl-1- (sodium p-phenylsulphonate) thiosemicarbazide (pMPT) and Cu (Ⅱ) The complex was studied and found that the complex at 0.006% Tween-80 NH3-NH4Cl solution at -0.63V (vs.SCE) produce a sensitive adsorption wave peak current and Cu (Ⅱ) concentration In the range of 5 ~ 110ng / mL, the detection limit was 3ng / mL, which was applied to the determination of copper in human hair and nickel sulfate.The results were satisfactory.The effects of various surfactants were tested, The complex was composed of Cu (Ⅱ): pMPT = 1: 3, and the conditional stability constant β = 5.54 × 1017. The polarographic properties and reaction mechanism of the complex were discussed.