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基于方波溶出伏安法的电化学传感器检测水体中痕量铅

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张克东, 豆俊峰, 丁爱中, 范福强, 王营营. 基于方波溶出伏安法的电化学传感器检测水体中痕量铅[J]. 环境工程学报, 2013, 7(8): 2973-2978.
引用本文: 张克东, 豆俊峰, 丁爱中, 范福强, 王营营. 基于方波溶出伏安法的电化学传感器检测水体中痕量铅[J]. 环境工程学报, 2013, 7(8): 2973-2978.
shu
Zhang Kedong, Dou Junfeng, Ding Aizhong, Fan Fuqiang, Wang Yingying. Determination of trace lead in water using an eletrochemical sensor based on square wave anodic stripping voltammetry[J]. Chinese Journal of Environmental Engineering, 2013, 7(8): 2973-2978.
Citation: Zhang Kedong, Dou Junfeng, Ding Aizhong, Fan Fuqiang, Wang Yingying. Determination of trace lead in water using an eletrochemical sensor based on square wave anodic stripping voltammetry[J]. Chinese Journal of Environmental Engineering, 2013, 7(8): 2973-2978.
shu

基于方波溶出伏安法的电化学传感器检测水体中痕量铅

  • 1.

    北京师范大学水科学研究院, 北京 100875

  • 基金项目:

    国家自然科学基金资助项目(51008026)

  • 中图分类号: X703

Determination of trace lead in water using an eletrochemical sensor based on square wave anodic stripping voltammetry

  • 1.

    College of Water Sciences, Beijing Normal University, Beijing 100875, China

  • Fund Project:

  • 摘要: 基于方波溶出伏安法运用丝网印刷电极探索了一种利用电化学传感器检测水样中痕量铅的方法。得到了该检测方法的最佳参数:方波频率30 Hz,振幅80 mV, 电位增量5 mV;0.5 mol/L的支持电解质(KCl);沉积电位-1.1 V,沉积时间400 s。在该优化条件下,在浓度为25~500 μg/L 范围内溶出峰电流与铅离子浓度呈良好的线性关系(R2=0.9945)。对于几种其他金属离子的干扰实验结果表明,Mn2+的存在严重抑制铅离子的峰电流。
    Abstract: A new method of electrochemical sensor for trace lead detection based on square wave anodic stripping voltammetry using screen-printed electrodes (SPE) was developed in this study. The optimum parameters for the method are as follows: the frequency of 30 Hz, the amplitude of 80 mV, the Estep of 5 mV, the concentration of the supporting electrolyte (KCl) of 0.5 mol/L, the deposition potential of -1.1 V and the deposition time of 400 s. Under the optimized analytical conditions, a good linearity between peak current and the concentration of the lead was obtained (R2=0.9945) under the range of 25~500 μg/L. The interference effect under the optimized conditions was also studied with various metal ions, and the results showed that the presence of Mn2+ in the solution reduced the lead peak currents significantly.
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  • 收稿日期:  2012-07-16
  • 刊出日期:  2013-08-12
张克东, 豆俊峰, 丁爱中, 范福强, 王营营. 基于方波溶出伏安法的电化学传感器检测水体中痕量铅[J]. 环境工程学报, 2013, 7(8): 2973-2978.
引用本文: 张克东, 豆俊峰, 丁爱中, 范福强, 王营营. 基于方波溶出伏安法的电化学传感器检测水体中痕量铅[J]. 环境工程学报, 2013, 7(8): 2973-2978.
shu
Zhang Kedong, Dou Junfeng, Ding Aizhong, Fan Fuqiang, Wang Yingying. Determination of trace lead in water using an eletrochemical sensor based on square wave anodic stripping voltammetry[J]. Chinese Journal of Environmental Engineering, 2013, 7(8): 2973-2978.
Citation: Zhang Kedong, Dou Junfeng, Ding Aizhong, Fan Fuqiang, Wang Yingying. Determination of trace lead in water using an eletrochemical sensor based on square wave anodic stripping voltammetry[J]. Chinese Journal of Environmental Engineering, 2013, 7(8): 2973-2978.
shu

基于方波溶出伏安法的电化学传感器检测水体中痕量铅

  • 1. 北京师范大学水科学研究院, 北京 100875
  • 收稿日期:  2012-07-16
基金项目:

国家自然科学基金资助项目(51008026)

摘要: 基于方波溶出伏安法运用丝网印刷电极探索了一种利用电化学传感器检测水样中痕量铅的方法。得到了该检测方法的最佳参数:方波频率30 Hz,振幅80 mV, 电位增量5 mV;0.5 mol/L的支持电解质(KCl);沉积电位-1.1 V,沉积时间400 s。在该优化条件下,在浓度为25~500 μg/L 范围内溶出峰电流与铅离子浓度呈良好的线性关系(R2=0.9945)。对于几种其他金属离子的干扰实验结果表明,Mn2+的存在严重抑制铅离子的峰电流。

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