聚氯乙烯膜对硝基苯酚离子选择电极的研制  

Preparation of p-Nitrophenolate Ion-selective Electrode Based on Polyvinyl Chloride Matrix Membrane

作　　者：许宏鼎[1] 王彦 

机构地区：[1]吉林大学化学系,长春130023 [2]辽阳石油化工专科学校,高分子化工系111003

出　　处：《分析化学》1991年第10期1162-1164,共3页Chinese Journal of Analytical Chemistry

摘　　要：本文介绍了以乙基紫阳离子与对硝基苯酚阴离子缔合物(EVNPO)为电活性物质,以邻苯二甲酸二丁酯(DBP)为增塑剂、以四氢呋喃(THF)为溶剂的 PVC 膜对硝基苯酚离子选择电极的研制方法,对电极的响应性能进行了测试,并对影响电极性能的因素以及电极的应用进行了讨论。The p-nitropenolate NP ion-selective electrode based on polyvinyl chloride matrix membrane has been prepared.Ethyl violet p-nitrophenolate ion-pair was used as the elect- reactive material,di-butyl phthalate as the plasticizer and tetrahydrofuran as the solvent. With p-nitrophenolate ion,Nernstian response curve has a slope of 59mV/p^(NP),the linear response range is from 5.0×10^(-2)to 5.0×10^(-5)mol/L at pH 9～11,the limit of detection is 1.9×10^(-5)mol/L.The electrode was used to measure the content of phenol in the waste water of gas coal industry.The result of electrochemical measurement was compared with that of volumetric analysis,the error was less than 5%.

关 键 词：PVC 离子选择电极 对硝基苯酚 

分 类 号：O625.613[理学—有机化学]