| 葛根素的循环伏安测定及其电化学行为研究 |
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| 引用本文： | 姚程炜,任小敏,严正雄,黄宝美,边清泉. 葛根素的循环伏安测定及其电化学行为研究[J]. 分析测试技术与仪器, 2010, 16(2): 97-99 |
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| 作者姓名： | 姚程炜 任小敏 严正雄 黄宝美 边清泉 |
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| 作者单位： | 中国空气动力研究与发展中心设备设计及测试技术研究所,四川,绵阳,622653;绵阳师范学院化学与化学工程学院,四川,绵阳,621000 |
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| 摘 要： | 在0.02 mol/L NH4Cl-NH3.H2O(pH8.0)的底液中,采用循环伏安法测定葛根素,得到一良好的氧化峰,峰电位Ep=+0.57V,峰电流Ip与葛根素的浓度在1.046×10-7～5.767×10-5mol/L范围内成线性关系,相关系数r为0.9989,检出限为1.046×10-7mol/L.测定葛根中葛根素的含量,平均回收率在99.8%.并且研究了葛根素在玻碳电极上的电化学行为,结果表明葛根素的电极过程具有吸附性和不可逆性.
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| 关 键 词： | 葛根素 循环伏安法 |
| 收稿时间： | 2009-12-15 |
| 修稿时间： | 2010-02-03 |
Study on Determination and Electrochemical Behavior of Puerarin by Cyclic Voltammogram |
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| YAO Cheng-wei,REN Xiao-min,YAN Zheng-xiong,HUANG Bao-mei and BIAN Qing-quan. Study on Determination and Electrochemical Behavior of Puerarin by Cyclic Voltammogram[J]. Analysis and Testing Technology and Instruments, 2010, 16(2): 97-99 |
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| Authors: | YAO Cheng-wei REN Xiao-min YAN Zheng-xiong HUANG Bao-mei BIAN Qing-quan |
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| Affiliation: | 1.Facility Design and Instrumentation Institute of CARDC,Mianyang 622653,China;2.Chemical Department of MianYang Normal University,Mianyang 621000,China) |
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| Abstract: | Puerarin shows a sensitive derivative oxidation peak at ＋0.57 V by using the cyclic voltammogram in a buffer solution of 0.02 mol/L NH4Cl-NH3·H2O（pH 8.0）.The peak current is proportional to the concentration of Puerarin in the range of 1.046×10-7～5.767×10-5 mol/L with r =0.9989.The detection limit is 1.046×10-7mol/L.This method has been applied to determine Puerarin with satisfactory results.Its average recovery rate is 99.8%.The electrochemical behavior of the system has been studied at a glassy carbon electrode by cyclic voltammetry.The electrode oxidation process of Puerarin at the glassy carbon electrode is irreversible and adsorptive. |
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| Keywords: | puerarin cyclic voltammetry |
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