微量级氯离子电极传感器的研究  

Study on micro level chlorine ion electrode sensor

作　　者：孙奎 李哲[1] 陈娟[1] SUN Kui;LI Zhe;CHEN Juan(College of Information Science&Technology,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《工业仪表与自动化装置》2018年第5期13-16,23,共5页Industrial Instrumentation & Automation

基　　金：国家自然科学基金(61771034)

摘　　要：该文以聚3,4-乙烯二氧噻吩作为氯离子电极的导电接触层,制备了全固态氯离子选择性电极。通过电化学分析方法,得出电极的检测浓度能达到10-4. 6mol/L,研究p H、常见阴离子和温度对电极检测干扰的影响。实验结果表明:所研制的氯离子电极适用于pH范围在5～8之间,待测溶液中应避免卤族或与卤族元素相近的阴离子的存在,同时温度对检测微量级浓度氯离子溶液影响较大。在微量级浓度测量时应在恒温条件下检测。In this paper,poly(3,4-Ethylenedioxythiophene)is used as the solid-state conductive contact layer of the chloride ion electrode,all solid-state chlorine ion selective electrodes were made by 3,4-Ethylenedioxythiophene.By the electrochemical analysis method,the detection concentration of the electrode can reach 10-4.6 mol/L,study the influence of pH,common anions and temperature on the interference of the electrode detection.The experimental results show that the chloride ion electrode developed in this paper is suitable for the rang of pH is 5~8,avoid halogen or similar to the halogen anions should be the existence of the text solution,the temperature has a great influence on the detection of micro level concentration of chloride ion solution.In the micro level concentration measurement,it should be detected at constant temperature.

关 键 词：氯离子电极 PH 温度 阴离子 

分 类 号：TH832[机械工程—仪器科学与技术]