掺硼金刚石薄膜电极分析检测痕量镉、铅、铜、汞

被引:6
作者
高成耀 [1 ,2 ]
佟建华 [1 ]
边超 [1 ]
夏善红 [1 ]
机构
[1] 中国科学院电子学研究所传感技术国家重点实验室
[2] 中国人民武装警察部队学院指挥系
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;
D O I
10.19869/j.ncm.1007-8827.2017.03.005
中图分类号
O657.1 [电化学分析法]; X832 [水质监测];
学科分类号
070302 ; 081704 ; 0804 ; 082803 ;
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。
引用
收藏
页码:277 / 283
页数:7
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