| 酵母核糖核酸在碳纳米管修饰电极上的电化学行为及其分析测定 |
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| 引用本文： | 艾珍,廖钫,朱林,何晓英,蔡铎昌.酵母核糖核酸在碳纳米管修饰电极上的电化学行为及其分析测定[J].分析测试学报,2005,24(5):56-58,61. |
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| 作者姓名： | 艾珍 廖钫 朱林 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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| 摘 要： | 研究了酵母核糖核酸（yRNA）在碳纳米管（MWNT）修饰电极上的电化学行为，优化了测定参数，在此基础上建立了一种直接测定yRNA的电分析测试方法。yRNA在碳纳米管修饰电极上于磷酸盐缓冲溶液中在0．758V处产生不可逆的氧化电流峰，峰电流与yRNA的质量浓度在1～10mg／mL之间有良好的线性关系，线性回归方程为：Iρ=0．0813ρ＋0．1807，相关系数r为0．9980，检出限为0．6mg／mL。
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| 关 键 词： | 酵母核糖核酸 碳纳米管 修饰电极 电化学分析 |
| 文章编号： | 1004-4957（2005）05-0056-03 |
| 收稿时间： | 2004-10-06 |
| 修稿时间： | 2004-10-062004-12-17 |
Study on the Electrochemical Behaviors of Ribonucleic Acid Yeast at Multi- wall Carbon Nanotubes Film Modified Electrode |
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| AI Zhen,LIAO Fang,ZHU Lin,HE Xiao-ying,CAI Duo-chang.Study on the Electrochemical Behaviors of Ribonucleic Acid Yeast at Multi- wall Carbon Nanotubes Film Modified Electrode[J].Journal of Instrumental Analysis,2005,24(5):56-58,61. |
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| Authors: | AI Zhen LIAO Fang ZHU Lin HE Xiao-ying CAI Duo-chang |
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| Abstract: | The electrochemical behavior of ribonucleic acid yeast(yRNA)at multi-carbon nanotube(MWNT)modified glassy carbon electrode(GCE)was investigated.The experimental parameters were optimized,and a direct electroanalytical method for determining yRNA was developed.The oxidation peak current of yRNA at the MWNT-modified GCE increased significantly in comparison with that at the bare GCE.The peak current was proportional to the concentration of yRNA on the range of1-10mg/mL with the detection limit of0.6mg/mL. |
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| Keywords: | Ribonucleic acid yeast Multi-carbon nanotube Modified electrode Electroanalytical method |
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