铅笔芯铋膜电极制备及其对饮用水中Pb^(2+)的测定  

Preparation of pencil-lead bismuth-film electrode and its determination of Pb^(2+) in drinking water

作　　者：谷苗苗 王甫洋 周爱东[2] Gu Miaomiao;Wang Fuyang;Zhou Aidong(School of Chemistry and Life Sciences, Nanjing University Jinling College, Nanjing, 210089, China;School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China)

机构地区：[1]南京大学金陵学院化学与生命科学学院,江苏南京210089 [2]南京大学化学化工学院,江苏南京210023

出　　处：《实验技术与管理》2017年第11期75-77,113,共4页Experimental Technology and Management

基　　金：江苏省高校自然科学研究面上项目(16KJB150017)

摘　　要：引入铅笔芯电极并结合分辨率高、灵敏度好的铋构建了铅笔芯铋膜电极,运用铅笔芯铋膜电极基于阳极溶出伏安法对Pb^(2+)的检测,并对实验条件进行优化,得到峰形良好的Pb^(2+)溶出信号的溶出伏安图,铅笔芯铋膜电极对于Pb^(2+)的响应表现出良好的线性关系,线性范围均在4~10μg/L和15~85μg/L,Pb^(2+)的检测限达到0.46μg/L。检测结果满足欧盟、美国环境保护局以及世界卫生组织对饮用水的要求。A pencillead bismuthfilm electrode is constructed by introducing a pencillead electrode and combing the bismuth with high resolution and good sensitivity.The Pb2+is detected by using a pencil core bismuth electrode based on the anodic stripping voltammetry.The experimental conditions are optimized,and the stripping voltammogram with good peak shape stripping signal is obtained.The pencillead bismuthfilm electrode shows a good linear relationship with the Pb2+response,the linear range is between4-10μg/L and15-85μg/L,and the detection limit of Pb2+reaches0.46μg/L.The detection results meet the drinking water requirements of the European Union,United States Environmental Protection Agency and World Health Organization.

关 键 词：铅离子 铅笔芯铋膜电极 溶出伏安法 

分 类 号：X853[环境科学与工程—环境工程]