| 生物可利用铅的铋膜电极微分电位溶出法测定研究 |
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| 引用本文： | 刘晓海,高云涛,胥义能,陈建国.生物可利用铅的铋膜电极微分电位溶出法测定研究[J].化学与生物工程,2006,23(3):56-58. |
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| 作者姓名： | 刘晓海 高云涛 胥义能 陈建国 |
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| 作者单位： | 1. 云南省环境科学研究院,云南,昆明,650034
2. 云南民族大学化学与生物技术学院,云南,昆明,650031 |
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| 摘 要： | 研究了镀铋膜电极替代镀汞膜电极的微分电位溶出分析法(DPSA)测定铅的方法,考察了同位镀铋膜测定铅的条件.结果表明,在HAc-NaAc介质中铅可在镀铋膜电极上得到灵敏的微分电位溶出峰,结合三步连续萃取利用标准加入法对城市污泥样品中的生物可利用铅进行测定,避免了镀汞膜电极带来的健康与环境危害,结果较满意.
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| 关 键 词： | 城市污泥 微分电位溶出 铋膜电极 生物可利用 铅 |
| 文章编号： | 1672-5425（2006）03-0056-03 |
| 收稿时间： | 2005-10-30 |
| 修稿时间： | 2005年10月31 |
Determination of Bioavailable Lead Using Bismuth-film Electrodes by Differential Potentiometric Stripping Analysis |
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| LIU Xiao-hai,GAO Yun-tao,XU Yi-neng,CHEN Jian-guo.Determination of Bioavailable Lead Using Bismuth-film Electrodes by Differential Potentiometric Stripping Analysis[J].Chemistry & Bioengineering,2006,23(3):56-58. |
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| Authors: | LIU Xiao-hai GAO Yun-tao XU Yi-neng CHEN Jian-guo |
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| Abstract: | A novel substitutive differential potentiometric stripping analysis(DPSA) for the determination of Pb via bismuth-film electrode by standard addition method was proposed.In HAc-NaAc(pH=4.4) buffer solution,the sensitive stripping peaks(dt/dE) of the ions were obtained.The method had been applied to determine bioavailable lead in environmental samples via three steps continuous extraction with satisfactory results. |
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| Keywords: | municipal sewage sludge differential potentiometric stripping analysis bismuth-film electrodes bioavailable lead |
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