分析化学2018，Vol.46Issue(2)：217-224,8.DOI:10.11895/j.issn.0253-3820.171026
锌、镉、铅离子在原位铋修饰掺硼金刚石薄膜电极上的传感分析
Determination of Trace ZnⅡ, CdⅡ and PbⅡ Metal Ions Using In-situ Bismuth-modified Boron Doped Diamond Electrode
摘要
Abstract
Bismuth modified boron doped diamond (BDD) film electrode was employed for simultaneous determination of trace ZnⅡ,CdⅡand PbⅡby anodic stripping voltammetry.BiⅢwas simultaneously in-situ deposited on bismuth modified boron doped diamond electrode with ZnⅡ,CdⅡ and PbⅡ by pre-concentration.In the presence of BiⅢ,the sensitivity for determination of ZnⅡ,CdⅡ and PbⅡ was remarkably enhanced.Influence factors such as bismuth concentration,boron doped concentrations of BDD electrode,pH,preconcentration potential were investigated and optimized.Under the optimal conditions,the stripping peak currents increased linearly with the increasing concentration of ZnⅡ,CdⅡ and PbⅡ in the range of 10-300 μg/L.The limit of detection was 0.56 μg/L for ZnⅡ,0.32 μg/L for CdⅡand 0.75 μg/L for PbⅡ (S/N=3),respectively.The interference experiments showed that common ions had little influence on the determination except CuⅡ.In addition,the developed electrode displayed a good repeatability.The method was successfully applied to determination of ZnⅡ,CdⅡ and PbⅡ in real water samples with the standard addition recoveries of 92.0%-114.0%.关键词
掺硼金刚石薄膜电极/阳极溶出伏安法/重金属离子/同时检测/电化学传感器Key words
Boron doped diamond thin film electrode/Anodic stripping voltammetry/Heavy metal ions/Simultaneous detection/Electrochemical sensor引用本文复制引用
高成耀,王晓青,谢虎成,夏善红,佟建华,边超,孙楫舟,李洋,王晋芬,龚顺,惠允,徐钰豪..锌、镉、铅离子在原位铋修饰掺硼金刚石薄膜电极上的传感分析[J].分析化学,2018,46(2):217-224,8.基金项目
本文系国家重点基础研究发展(973)计划项目(No.2015CB352100)、国家自然科学基金项目(No.61306010)和河北省自然科学基金项目(No.E2014507012)资助This work was supported by the Key Project of Major State Basic Research Development Program(No.2015CB352100),the National Natural Science Foundation of China (No.61306010) and the Natural Science Foundation of Hebei Province, China (No.E2014507012). （973）
