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关于PVC膜钠离子选择电极的研制,文献[1]—[3]已有报道。本文应用2,3,11,12—四苯基1,4,7,10,13,16—六氧—2,11十八环二烯为电活性物质研制了涂碳(PVC膜)钠离子选择电极,其线性响应范围为4.0×10~(-5)—10~(-1)M,斜率为55—56mv/pNa(21—22℃)。本电极不需要一般PVC膜电极所用的内参比电极和内参比溶液,直接用碳棒作内参比体系,具有材料易得、制作简单、使用方便等特点。
About PVC membrane sodium ion selective electrode development, literature [1] - [3] has been reported. In this paper, the application of 2,3,11,12-tetraphenyl 1,4,7,10,13,16-hexaoxa-2,11 octadecadienadiene as the electroactive material developed carbon coating (PVC membrane) sodium The selection electrode has a linear response range of 4.0 × 10 -5 -10 -10 M with a slope of 55-56 mV / pNa at 21-22 ° C. The electrode does not require the internal reference electrode and the internal reference electrode used in the general PVC membrane electrode. The carbon rod is used as an internal reference system, which has the advantages of easy-to-obtain materials, simple manufacture and convenient use.