| 石墨烯-金纳米复合膜修饰电极溶出伏安法测定水中痕量汞 |
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| 引用本文： | 王雪梅,吴守国,刘皓,周磊,赵祺平. 石墨烯-金纳米复合膜修饰电极溶出伏安法测定水中痕量汞[J]. 化学物理学报, 2013, 26(5): 590-596 |
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| 作者姓名： | 王雪梅 吴守国 刘皓 周磊 赵祺平 |
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| 作者单位： | 中国科学技术大学化学系，合肥230026;中国科学技术大学化学系，合肥230026;中国科学技术大学化学系，合肥230026;中国科学技术大学化学系，合肥230026;中国科学技术大学化学系，合肥230026 |
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| 摘 要： | 通过一步电沉积制备了石墨烯-金纳米复合膜修饰玻碳电极，并以此修饰电极为工作电极，采用差分脉冲阳极溶出伏安法测定环境水中痕量汞. 这种纳米复合膜结合了金纳米粒子和石墨烯两者的优势，能够增加异相电子转移速度和修饰电极对汞的富集能力，从而显著提高了电极的灵敏度和选择性. 这种修饰电极具有良好的分析性能：Hg(II)的分析曲线覆盖了0.2～5.0和5.0～30 μg/L两个线性范围，Hg(II)检测限(S/N=3)为0.030 μg/L. 此外，该修饰电极还表现出良好的稳定性和抗干扰性能，还被成功地应用于实际水样中Hg(II)的测定.
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| 关 键 词： | 石墨烯-金纳米复合膜，化学修饰电极，汞，溶出伏安法 |
Graphene-gold Nanoparticle Composite Film Modified Electrode for Determination of Trace Mercury in Environmental Water |
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| Xue-mei Wang,Shou-guo Wu,Hao Liu,Lei Zhou and Qi-ping Zhao. Graphene-gold Nanoparticle Composite Film Modified Electrode for Determination of Trace Mercury in Environmental Water[J]. Chinese Journal of Chemical Physics, 2013, 26(5): 590-596 |
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| Authors: | Xue-mei Wang Shou-guo Wu Hao Liu Lei Zhou Qi-ping Zhao |
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| Affiliation: | Department of Chemistry, University of Science and Technology of China, Hefei 230026, China;Department of Chemistry, University of Science and Technology of China, Hefei 230026, China;Department of Chemistry, University of Science and Technology of China, Hefei 230026, China;Department of Chemistry, University of Science and Technology of China, Hefei 230026, China;Department of Chemistry, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | |
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| Keywords: | Graphene-gold nanoparticle composite membrane Chemically modified elec-trode Mercury Stripping voltammetry |
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