双氧水处理活性碳修饰碳糊电极测水中Pb(Ⅱ)  

Determination of Lead(Ⅱ) Using H_2O_2-oxidized Activated Carbon Modified Electrode

作　　者：刘雅旋[1] 夏会玲[1] 刘召[1] 易洪潮[1] 

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023

出　　处：《广州化工》2011年第10期107-109,共3页GuangZhou Chemical Industry

基　　金：国家大学生创新性实验计划项目(No:091048918)资助

摘　　要：实验研究了用双氧水处理的活性碳修饰碳糊电极测定水中的Pb(Ⅱ)。对富集电位、富集时间、支持电解质及其酸度、修饰剂用量及超声处理时间进行了研究和优化,并研究了部分干扰离子的影响。结果表明在优化条件下对铅的检测线性范围为4.0×10-8～2.0×10-5 mol/L,检测限为1.0×10-8。用该修饰电极检测了护城河水样中的铅离子,平均回收率为101%。Experimental study of the hydrogen peroxide treatment using activated carbon modified carbon paste electrode determination of Pb（Ⅱ） was presented.On the accumulation potential,accumulation time,supporting electrolyte,pH,modifier dosage and ultrasonic treatment time were studied and optimized to study the influence of some interfering ions.The results showed that under optimal conditions that the linear range of detection of lead was 4.0×10-8~2.0×10-5 mol/L,and detection limit was 1.0×10-8 mol/L.With moat of the modified electrode to detect lead ions in water samples,the average recovery was 101%.

关 键 词：双氧水 活性碳 化学修饰碳糊电极 吸附溶出伏安法 铅 超声波 

分 类 号：TQ424.1[化学工程]