| 鸟嘌呤、鸟苷、鸟苷酸的电化学石英晶体微天平研究 |
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| 引用本文： | 沈鹤柏,夏静芬,王浙苏,章宗穰.鸟嘌呤、鸟苷、鸟苷酸的电化学石英晶体微天平研究[J].高等学校化学学报,2001,22(6):962-965. |
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| 作者姓名： | 沈鹤柏 夏静芬 王浙苏 章宗穰 |
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| 作者单位： | 上海师范大学化学系, 上海 200234 |
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| 基金项目： | 上海市教育委员会重点科研项目! (批准号 :S970 40 3 )，上海市自然科学基金! (批准号 :0 0 ZA14 0 42 )资助 |
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| 摘 要： | 利用电化学石英晶体微天平(EQCM)研究了鸟嘌呤、鸟苷和鸟苷酸在金电极上的电化学行为.结果表明,三种生物活性分子均能在1.1V电位被氧化,对应于它们所含的共同基团嘌呤环中CN键的氧化,根据氧化反应电量和质量的变化,求得电子转移数为4.氧化电流的大小次序为鸟苷酸>鸟苷>鸟嘌呤,这可能与三者在电极上的吸附量不同有关.
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| 关 键 词： | 电化学石英晶体微天平 循环伏安法 鸟嘌呤 鸟苷 鸟苷酸 |
| 文章编号： | 0251-0790(2001)06-0962-04 |
| 收稿时间： | 1999-10-10 |
Electrochemical Quartz Crystal Microbalance Study on the Electrochemical Behavior of Guanine,Guansine and Guansine Phosphate at Gold Electrode |
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| SHEN He Bai,XIA Jing Fen,WANG Zhe Su,ZHANG Zong Rang.Electrochemical Quartz Crystal Microbalance Study on the Electrochemical Behavior of Guanine,Guansine and Guansine Phosphate at Gold Electrode[J].Chemical Research In Chinese Universities,2001,22(6):962-965. |
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| Authors: | SHEN He Bai XIA Jing Fen WANG Zhe Su ZHANG Zong Rang |
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| Institution: | Department of Chemistry, Shanghai Teachers University, Shanghai 200234, China |
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| Abstract: | The electrochemical quartz crystal microbalance(EQCM) was used to study the electrochemical behavior of guanine, guanosine and guanosine phosphate on the gold electrode. The results show that the three biological molecules can be oxidized at 1.1 V, which might be caused by the oxidation of CN bond within three studied molecules. According to the change of electric quantity and mass quantity, we have calculated the number of transferred electron, which is 4. The order of oxidation current is estimated as guanosine phosphate>guanosine>guanine, which might be caused by the different adsorption ability of those molecules. |
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| Keywords: | Electrochemical quartz crystal microbalance(EQCM) Cyclic voltammograms Guanine Guanosine Guanosine phosphate |
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