| 巯基乙酸修饰金电极的电化学行为及对铜离子的测定 |
| |
| 引用本文： | 孙新枝.巯基乙酸修饰金电极的电化学行为及对铜离子的测定[J].化学研究,2006,17(2):80-83. |
| |
| 作者姓名： | 孙新枝 |
| |
| 作者单位： | 莱阳农学院,理学院,山东,青岛,266109 |
| |
| 摘 要： | 通过共价自组装的方法制备了巯基乙酸单分子层修饰金电极.在含有铜离子的磷酸缓冲液中搅拌吸附,铜离子与修饰电极表面的巯基乙酸形成的活性配合物吸附在电极表面.用该电极对不同浓度的铜离子进行检测,发现峰电流随铜离子浓度的增大而增大,在0.05~1μmol/L之间出现良好的线性关系,其最低检测限可达10 nmol/L.
|
| 关 键 词： | 巯基乙酸 修饰金电极 电化学行为 铜离子检测 |
| 文章编号： | 1008-1011（2006）02-0080-04 |
| 收稿时间： | 2006-02-26 |
| 修稿时间： | 2006年2月26日 |
Electrochemical Properties of Mercaptoacetic Acid Modified Gold Electrode and Determination of Copper |
| |
| SUN Xin-zhi.Electrochemical Properties of Mercaptoacetic Acid Modified Gold Electrode and Determination of Copper[J].Chemical Research,2006,17(2):80-83. |
| |
| Authors: | SUN Xin-zhi |
| |
| Abstract: | A new chemically-modified gold electrode was prepared by covalent self-assembly using mercaptoacetic acid as modifier.An electro-active complex of copper with mercaptoacetic acid was formed and accumulated on the surface of the electrode while the electrode was immersed into a stirred copper salt buffer solution of NaH_(2)PO_(4)-Na_(2)HPO_(4).While the electrode accumulated in various concentrations of copper salt,the electro-chemical currents were changed.The value of peak current increased linearly with the concentration of copper cation in the range of 0.05 μmol/L to 1 μmol/L.The detection limit was 10 nmol/L. |
| |
| Keywords: | mercaptoacetic acid modified gold electrode electrochemical behavior copper determination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
