一种测定污水中对苯二酚的新方法  

A New Method for Determination of Hydroquinone in Sewage

作　　者：胡文娜[1] 

机构地区：[1]蚌埠学院应用化学与环境工程系,安徽蚌埠233030

出　　处：《淮北师范大学学报（自然科学版）》2015年第3期49-52,共4页Journal of Huaibei Normal University：Natural Sciences

基　　金：蚌埠学院自然科学研究项目(2011ZR07)

摘　　要：用循环伏安法制备铜/聚对氨基苯甲酸复合修饰电极,并研究对苯二酚在该修饰电极上的电化学行为.在p H3.5磷酸盐缓冲溶液中,扫描速率为240 m V/s时,对苯二酚会在铜掺杂修饰电极上产生一对清晰的氧化还原峰,峰电位分别为Epa=0.376 V,Epa=0.293 V.对苯二酚氧化峰电流与其浓度在3.0×10-6~1.0×10-3mol/L范围内呈良好的线性关系,检出限为8.0×10-7mol/L.基于对苯二酚在修饰电极上的电化学特性,为我们建立一种新的测定方法.对对苯二酚样品的测定分析,结果满意.The copper and poly para aminobcnzoic acid compoud modified electrode was prepared by the cy- clic voltammetry. And the electrochemical behavior of hydroquinone on the modified electrode was studied. In pH3.5 phosphate buffer solution, with the scanning rate of 240 mV/s, hydroquinone produced a clear pair of redox peaks, and the peak potential were Epa = 0.376 V and Epc = 0.293 V, respectively. Hydroquinone oxi- dation peak current and concentration in the range of 3.0×10^-6-1.0× 10^-3 mol/L had a good linear relation- ship, and the detection limit was 8.0× 10^-7 mol/L. Based on the study, a new method was established for de- termination of hydroquinone.And the method was used for the determination of hydroquinone samples with satisfactory results.

关 键 词：铜 对氨基苯甲酸 对苯二酚 循环伏安法 修饰电极 

分 类 号：O657.15[理学—分析化学]