摘要
本文以结晶紫-三溴苯酚缔合物为活性材料研制了玻璃电极作为内导电极的PVC膜三溴苯酚涂膜电极。电极的线性响应范围为2.0×10^(-5)mol·L^(-1)～1.0×10^(-2)mol·L^(-1),斜率为59mV/pC,检出下限为1.0×10^(-5)mol·L^(-1);电极的pH使用范围为10～12。实验表明涂膜电极的响应速度快,稳定性与重现性均优于普通液体内参比体系的三溴苯酚离子选择性电极。对废水样中苯酚含量进行测定,结果与紫外光度法相符。
PVC membrane tribromophenol electrode was prepared using crystal violettribro-mophenol as electroactive material, in which glass electrode is used as inner electrode. The stability and reproducibility of the electrode were superior to those of PVC membrane ion-selective electrode using common inner reference. The electrode response range was 2.0×10-5-1.0×10-2mol·L-1 with 59mV/decade. Suitable pH range is 10-12. Phenol in waste water was analyzed using the electrode.
出处
《化学传感器》
CAS
1999年第3期50-54,共5页
Chemical Sensors
关键词
苯酚
三溴苯酚
玻璃电极
聚氯乙烯
涂膜电极
ion-selective electrode inner glass electrode phenol tribromophenol
