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    双硫腙/多壁碳纳米管修饰电极差分脉冲溶出伏安法测定猪肝和猪肾中的镉(Ⅱ)

    杨玫, 刘佳明, 包晓天, 马美萍, 葛利云, 陈玲玲

    杨玫, 刘佳明, 包晓天, 马美萍, 葛利云, 陈玲玲. 双硫腙/多壁碳纳米管修饰电极差分脉冲溶出伏安法测定猪肝和猪肾中的镉(Ⅱ)[J]. 理化检验-化学分册, 2015, 51(3): 365-368.
    引用本文: 杨玫, 刘佳明, 包晓天, 马美萍, 葛利云, 陈玲玲. 双硫腙/多壁碳纳米管修饰电极差分脉冲溶出伏安法测定猪肝和猪肾中的镉(Ⅱ)[J]. 理化检验-化学分册, 2015, 51(3): 365-368.
    YANG Mei, LIU Jia-ming, BAO Xiao-tian, MA Mei-ping, GE Li-yun, CHEN Ling-ling. Differential Pulse Stripping Voltammetric Determination of Cadmium(Ⅱ)in Liver and Kidney with Dithizone/Multi-Walled Carbon Nanotubes Modified Electrode[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART B:CHEMICAL ANALYSIS, 2015, 51(3): 365-368.
    Citation: YANG Mei, LIU Jia-ming, BAO Xiao-tian, MA Mei-ping, GE Li-yun, CHEN Ling-ling. Differential Pulse Stripping Voltammetric Determination of Cadmium(Ⅱ)in Liver and Kidney with Dithizone/Multi-Walled Carbon Nanotubes Modified Electrode[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART B:CHEMICAL ANALYSIS, 2015, 51(3): 365-368.

    双硫腙/多壁碳纳米管修饰电极差分脉冲溶出伏安法测定猪肝和猪肾中的镉(Ⅱ)

    基金项目: 

    国家级大学生创新创业训练计划项目(201210343006)

    浙江省自然科学基金项目(LY13D010006)

    浙江省医药卫生一般研究计划(2012KYB124)

    温州市科技计划项目(Y20130228)

    浙江省大学生科技创新项目(2014R413036)

    详细信息
      作者简介:

      杨玫(1994-),女,甘肃秦安人,研究方向为电化学分析.

    • 中图分类号: O657.14

    Differential Pulse Stripping Voltammetric Determination of Cadmium(Ⅱ)in Liver and Kidney with Dithizone/Multi-Walled Carbon Nanotubes Modified Electrode

    • 摘要: 采用双硫腙/多壁碳纳米管修饰电极差分脉冲溶出伏安法测定猪肝和猪肾中镉(Ⅱ)的含量.优化的试验条件如下:① 0.1 mol·L-1乙酸-乙酸钠缓冲溶液(底液)的pH为6.0;② 双硫腙的用量为3 μL;③ 多壁碳纳米管的用量为10 μL;④ 沉积时间为300 s;⑤ 沉积电位为-1.2 V;⑥ 平衡时间为40 s.镉(Ⅱ)在一定的浓度范围内与其峰电流呈线性关系,方法的检出限(3S/N)为1.0×10-9mol·L-1.方法应用于猪肝和猪肾样品的分析,测定值与石墨炉原子吸收光谱法测定值相符,方法的回收率在94.0%~108%之间.
      Abstract: Differential pulse stripping voltammetry was applied to the determination of cadmium(Ⅱ) in liver and kidney using dithizone/multi-walled carbon nanotubes modified electrode. The optimized conditions were as follows:① pH of 0.1 mol·L-1 HOAc-NaOAc buffer solution(base solution):6.0;② amount of dithizone:3 μL;③ amount of multi-walled carbon nanotubes:10 μL;④ time of deposition:300 s;⑤ potential of deposition:-1.2 V;⑥ time of equilibration:40 s. The linear relationship between the peak currents and the concentration of cadmium(Ⅱ) was kept in definite ranges,with detection limit of 1.0×10-9mol·L-1. The proposed method was used for the measurement of liver and kidney samples,giving results in consistency with the values obtained by GFAAS with recovery rates in the range of 94.0%-108%.
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      [7] 黄文胜,杨春海,张升辉.双硫腙修饰玻碳电极阳极溶出伏安法测定痕量镉和铅[J].分析化学,2002,30(11):1367-1370.
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    出版历程
    • 收稿日期:  2014-01-24
    • 刊出日期:  2015-03-17

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