| 单壁碳纳米管复合膜电极电催化氧化山茛菪碱 |
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| 引用本文： | 字润祥,段德良,庹攀登,武云,曹秋娥,王家强.单壁碳纳米管复合膜电极电催化氧化山茛菪碱[J].昆明师范高等专科学校学报,2012(6):71-75. |
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| 作者姓名： | 字润祥 段德良 庹攀登 武云 曹秋娥 王家强 |
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| 作者单位： | 云南大学化学科学与工程学院自然资源药物化学重点实验室,云南昆明650091 |
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| 基金项目： | 云南省应用基础研究基金资助项目（2011FZ011） |
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| 摘 要： | 制备以水作为分散剂的单壁碳纳米管-刚果红（SWCNTs—cR）的化学修饰电极，研究山莨菪碱在该修饰电极上的电化学行为和电化学动力学性质．结果表明：该修饰剂对山莨菪碱的氧化具有显著的电催化作用；山莨菪碱的氧化过程是不可逆的双电子双质子过程，其在该修饰电极上的扩散系数、速率常数分别为6．49×10^2cm2／s，6．52×10^3moL／（L·S）．基于实验优化分析条件，建立直接测定山莨菪碱的电化学定量分析方法，该方法的线性范围为1．73×10-5．17×10^-4mol／L和6．31X10^-5-L 14X10-4mol／L，检出限为1．74×10-4mol／L，同支电极的相对标准偏差（RSD）为3．66％．该方法也可用于山莨菪碱的含量测定．
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| 关 键 词： | 单壁碳纳米管 刚果红 化学修饰电极 山莨菪碱 电化学行为 |
The Electrocatalysis of the Oxidation of Anisodamine on the Composite Electrode Modified by Single Walled Carbon Nanotubes |
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| ZI Rui-xiang,DUAN De-liang,DUO Pan-deng,WU Yun,CAO Qiu-e,WANG Jia-qiang.The Electrocatalysis of the Oxidation of Anisodamine on the Composite Electrode Modified by Single Walled Carbon Nanotubes[J].Journal of Kunming Teachers College,2012(6):71-75. |
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| Authors: | ZI Rui-xiang DUAN De-liang DUO Pan-deng WU Yun CAO Qiu-e WANG Jia-qiang |
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| Institution: | ( Key Laboratory of Medicinal Chemistry for Natural Resource, College of Chemical Science and Technology, Yunnan University, Yunnan Kunming 650091, China) |
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| Abstract: | Coating with Single walled Carbon Nanotubes （SWCNTs-CR） functionalized by congo red （CR） on the glassy carbon electrode to prepare a Novel chemically modified electrode （ SWCNTs-CR/GCE ）. Studied the electrochemical behaviors of Anisodamine and its electroanalytical method, the result is found that SWCNTs-CR/GCE can catalize the oxidation of the Anisodamine and enhance the oxide current. Also studied its property of kinetics, the electroxidation of Anisodamine showed 2-electrons and 2-protons transfer process. Detected its diffusion coefficient （D） was 6.49 x 10-2 cm2/s and rate constant （k） was 6. 52 x 10- 3 mol/（ L . s） respectively. By optimizing some experimental conditions, we build an electroanalytical method of the detecting of Anisodamine directly. The linear calibration range for Anisodamine were 1.73 x 10^-5-5.17 x 10^-5 mol/L and 6. 31 x 10^-5-1.14 x 10 ^-4 mol/L with a detection limit of 1.74 x 10^-6 mol/L, The RSD of sample analysis of Anisodamine were 3.66% in 10 times. This simple method could be applied to the determination of Anisodamine in the real sample. |
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| Keywords: | single walled carbon nanotubes congo red chemically modified electrode anisodamine electrochemical behavior |
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