| 青蒿素在不同电极上的电化学行为及其在血红素作用下的还原 |
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| 引用本文： | 周志军,杨培慧,冯德雄,朱宇同,张美义.青蒿素在不同电极上的电化学行为及其在血红素作用下的还原[J].云南大学学报(自然科学版),2003,25(2):144-147,152. |
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| 作者姓名： | 周志军 杨培慧 冯德雄 朱宇同 张美义 |
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| 作者单位： | 1. 暨南大学,化学系,广东,广州,510632
2. 广州中医药大学,热带医学研究所,广东,广州,510405 |
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| 基金项目： | 广东省自然科学基金资助项目(021190). |
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| 摘 要： | 在20%的乙醇和B-R缓冲溶液(pH为7.2)中,分别比较了青蒿素(artemisinin,qhs)在金电极、银电极、铂电极、玻碳电极上的电化学行为,结果表明:在+0.00～-1.30V(vs.SCE)的电位范围内,青蒿素在金电极和铂电极上无氧化还原峰信号;而在银电极和玻碳电极上有一还原峰,无氧化峰,峰电位为分别-0.64V和-0.91V.此外在银电极和玻碳电极上,血红素(hemin)能够催化青蒿素的还原.
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| 关 键 词： | 青蒿素 银电极 玻碳电极 电化学行为 血红素 |
| 文章编号： | 0258-7971(2003)02-0144-04 |
The electrochemical behavior of artemisinin at the different electrodes and its interaction with hemin |
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| ZHOU Zhi-jun,YANG Pei-hui,FENG De-xiong,ZHU Yu-tong,ZHANG Mei-yi.The electrochemical behavior of artemisinin at the different electrodes and its interaction with hemin[J].Journal of Yunnan University(Natural Sciences),2003,25(2):144-147,152. |
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| Authors: | ZHOU Zhi-jun YANG Pei-hui FENG De-xiong ZHU Yu-tong ZHANG Mei-yi |
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| Institution: | 1. Department of Chemistry, Jinan University, Guangzhou 510632, China;2. Institute of the Tropics Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, China |
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| Abstract: | In the solution of 20% ethanol +B-R(pH=7.2),the electrochemical behaviors of artemisinin(QHS) at various electrodes were compared.The results showed that between +0.00V～-1.30V(vs.SCE),QHS has no redox signal at the Au and Pt electrode.However,at the Ag and Gc electrode,it has a reductive peak and the potential was -0.64?V and -0.91?V.Moreover,hemin can catalyze the QHS’s reduction at the Ag and glassy carbon(GC) electrode. |
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| Keywords: | QHS(artemisinin) Ag electrode GC electrode electrochemical behavior hemin |
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