| 水杨酸在多壁碳纳米管修饰电极上的电化学行为及其测定 |
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| 引用本文： | 罗红梅,廖钫,谭宝玉,何晓英,蔡铎昌.水杨酸在多壁碳纳米管修饰电极上的电化学行为及其测定[J].分析科学学报,2009,25(6). |
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| 作者姓名： | 罗红梅 廖钫 谭宝玉 何晓英 蔡铎昌 |
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| 作者单位： | 西华师范大学化学化工学院,四川南充,637002 |
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| 基金项目： | 四川省教育厅重点科研项目，西华师范大学重点科研项目 |
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| 摘 要： | 用循环伏安法(CV)研究了水杨酸(SA)在多壁碳纳米管修饰玻碳电极上的电化学行为,并初步探讨了反应机理.实验结果表明,水杨酸在该电极上为一个2e/H~+的完全不可逆过程.在pH=5.0的磷酸盐缓冲溶液(PBS)中,用循环伏安法在该电极上测定了水杨酸.方法线性范围为2.0×10~(-5)～1.0×10~(-3)mol/L,检出限为8.93×10~(-6)mol/L.将该电极用于药品分析,结果令人满意.
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| 关 键 词： | 多壁碳纳米管 水杨酸 循环伏安法 修饰电极 |
Electrochemical Behavior of Salicylic Acid at Multi-wall Carbon Nanotube Modified Electrode and Its Determination |
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| LUO Hong-mei,LIAO Fang,TAN Bao-yu,HE Xiao-ying,CAI Duo-chang.Electrochemical Behavior of Salicylic Acid at Multi-wall Carbon Nanotube Modified Electrode and Its Determination[J].Journal of Analytical Science,2009,25(6). |
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| Authors: | LUO Hong-mei LIAO Fang TAN Bao-yu HE Xiao-ying CAI Duo-chang |
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| Institution: | LUO Hong-mei,LIAO Fang*,TAN Bao-yu,HE Xiao-ying,CAI Duo-chang(Institute of Chemical Engineering,China West Normal University,Nanchong 637002) |
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| Abstract: | The electrochemical behavior of salicylic acid(SA) at a multi-wall corbon nanotube modified electrode was investigated by cyclic voltammetry in 0.1 mol/L KH_2PO_4-NaOH buffer solution. The results showed that SA under went an irreversible reaction involving two electrons and possibly one proton. The linear range for SA was 2×10~(-5) to 1×10~(-3) mol/L.The detection limit was 8.93×10~(-6) mol/L. The electrode was applied to medicine analysis with satisfactory results. |
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| Keywords: | Multi-wall carbon nanotube Salicylic acid Cyclic voltammetry Modified electrode |
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