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用Ａｇ＿２Ｓ和ＣｕＳ以８∶１（或１４∶３）的比混合物做为活性物质，用邻苯二甲酸二辛酯（ＤＯＰ）为增塑剂。首次研制了非均相ＰＶＣ膜铜离子选择性电极，电极的能斯特响应范围为５．０×１０￣（－６）～１．０×１０￣（－２）ｍｏｌ·Ｌ￣（－１），平均斜率为３０ｍＶ／ＰＣＵ（２５℃），电极的重现性和稳定性都比较好，电极的寿命可达三个月。用试制的ＰＶＣ膜铜离子选择性电极测定了铜合金中铜的含量与经典法碘量法所得结果相吻合，还用试制的电极测定了标准精镁试样中微量铜的含量与标准值一致。
Ag 2 S and CuS were used as active materials in a ratio of 8: 1 (or 14: 3), and dioctyl phthalate (DOP) was used as a plasticizer. The heterogeneous PVC membrane copper ion selective electrode was developed for the first time. The Nernst response range of the electrode was 5.0 × 10 -6 ~ 1.0 × 10 -2 mol·L -1 ), The average slope of 30mV / PCU (25 ℃), the electrode reproducibility and stability are better, the life of the electrode up to three months. The copper content in the copper alloy was determined by the trial-produced PVC film copper ion selective electrode. The content of copper in the standard magnesium sample was also consistent with the standard value .