含电解质的干式离子选择电极的构建  

Construction of Dry Ion Selective Electrode Containing Electrolyte

作　　者：王鹏 张国联 WANG Peng;ZHANG Guolian(B&E Bio-Technology Co.,Ltd.,Yantai 264034,China)

机构地区：[1]山东卓越生物技术股份有限公司

出　　处：《化学与生物工程》2019年第8期59-61,68,共4页Chemistry & Bioengineering

基　　金：山东半岛国家自主创新示范区发展建设资金项目(ZCQ16103)

摘　　要：将氯化钠溶液滴加到含有聚合物、增塑剂、钠离子载体、硼酸盐和有机溶剂的均匀溶液中,充分混匀后滴涂在银/氯化银表面,直到溶剂完全挥发构建了一种可快速活化的含电解质的干式离子选择电极;通过电极斜率与电位稳定性的测试,优化了氯化钠的加量,并对所构建的离子选择电极的使用性能进行了评价。结果表明,当氯化钠添加量为6μL时,电极膜溶液中钠离子载体与钠离子物质的量比为1∶1,6 min内即可完成活化,电极斜率为63.6 mV/decade,1 h内电位变化值仅3.2 mV。电解质干式离子选择电极与电解质分析仪配合使用,准确度、精密度等性能指标满足临床使用要求,可提高诊疗效率。Adding sodium chloride into a uniform solution containing polymers,plasticizers,sodium ion carriers,borates and organic solvents,and dropping the solution on the surface of Ag/AgCl after mixed fully until the solvent volatilized,we constructed a dry ion selective electrode containing electrolyte with fast activation.Moreover,we optimized the amount of sodium chloride by determination of electrode slope and potential stability,and evaluated application performance of the ion selective electrode.The results show that when the amount of sodium chloride is 6μL,the molar ratio of sodium carrier and sodium ion is 1∶1,the electrode can be activated within 6 min with the electrode slope of 63.6 mV/decade and the potential change value of 3.2 mV within 1 h.Combination of the ion selective electrode containing electrolyte and electrolyte analyzer can improve the clinical detection efficiency with satisfied accuracy,precision and other performance.

关 键 词：电解质 离子选择电极 电极斜率 电位稳定性 电解质分析仪 

分 类 号：O657.15[理学—分析化学]