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将聚苯胺修饰的钨丝电极为工作电极 ,Ag/ Ag-Cl电极为参比电极构成针型 p H传感器。该传感器在 p H2～1 2范围内呈现 Nernst响应 ,响应时间小于 1 min。该传感器成功地应用于河鲫鱼由活体到腐败过程中 p H值的变化测定。
The polyaniline modified tungsten electrode is the working electrode, and the Ag / Ag-Cl electrode is the reference electrode to form the needle type p H sensor. The sensor exhibits Nernst response in the range of p H2 ~ 1 2 with a response time of less than 1 min. The sensor was successfully applied to the determination of the p H value of the crucian carp from in vivo to spoilage.