中文摘要：

采用热丝化学气相沉积方法（HFCVD）制备硼掺杂金刚石（BDD）薄膜电极,并对BDD电极进行了表征和活化处理。以制备的BDD电极为工作电极利用阳极溶出伏安法对镉、铅、铜、汞重金属离子进行检测分析,考察了扫描方式、工作电极、支持电解液、p H值、电极硼掺杂浓度、富集时间、富集电位等因素对检测的影响。在优化实验条件下,对1-7 ppb的镉、铅、铜、汞重金属离子进行了同时检测,结果表明BDD电极对镉、铅、铜、汞重金属离子溶出峰的分离度较好,具有良好的线性度和重复性。

英文摘要：

A boron-doped diamond （BDD） thin-film electrode was prepared and used for the simultaneous detection and quantifi-cation of Cd（ Ⅱ）,Pb （Ⅱ）,Cu （Ⅱ ） , Hg（ Ⅱ） ions using an anodic stripping voltammetry method. The BDD thin film was pre-pared by a hot filament chemical vapor deposition technique and used as the working electrode in the detection. The influence of ex-perimental parameters, such as scanning mode, working electrode, supporting electrolyte, pH, boron concentration in the BDD elec- trode, accumulation potential and accumulation time were investigated. Under the optimized conditions, the stripping peak currents showed a good linear relationship with the concentrations of the four heavy metal ions from 1 to 7 ppb, and the results were very re-producible.