聚氯乙烯膜恩其明电极的研制

Preparation of ungeremine electrode with PVC membrane

以恩其明－四苯硼钠高子缔合物为活性物质，研制了聚氯乙烯膜恩其明选择性电极，其能斯特响应范围和检测限分别为１．０×１０－２～１．０×１０－５ｍｏｌ／Ｌ，２．０×１０－６ｍｏｌ／Ｌ，对恩其明的回收率为９１％～１０４％，变异系数小于３％，此方法简便、快速、准确。

The ungeremine selective electrode with PVC membrane was prepared with ungereminetetraphenylborate sodium ion association complex as active material.The Nernst response range and the detection limit of the selective electrode were 1.0×10-2￣1.0×10-5mol/L and 2.0×10-6mol/L,respectively,The recovery rate of ungeremine was 91%￣104% and the coefficient of variation was less than 3%.The method is simple,fast and correct.