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《Strait Pharmaceutical Journal》 2007-08
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Electrochemical behavior of Kaempferol and its reaction mechanism on a glassy carbon electrode

LIU Ai-lin,ZHANG Shao-bo,WU Xiao-sha,LI Li-ping,CAO Yang-yuan,LIN Xin-hua(Department of Pharmaceutical Analysis of the Fujian Meidical University,Fuzhou 350004,China)  
OBJECTIVE To develop a new method for the determination of Kaempferol.METHODS The electrochemical behavior of Kaempferol was studied by voltammetry with a glassy carbon electrode.The results exhibited the well-defined redox peak of Kaempferol was observed and the electrode process was adsorption-controlled.The charge transfer coefficient(α)was calculated as 0.467 in phosphate buffer solution(pH 5.0).RESULTS The relationships between oxidation peak current and the concentration of Kaempferol were linear in the range of 1.0×10-7~5.0×10-6 mol·L-1 by Differential Pulse Voltammetric method.The detection limit had been estimated as 1.0×10-8mol·L-1.CONCLUSION This method can be used for the determination of Kaempferol with satisfactory results.
【Fund】: 国家863计划项目(2006AA022421);; 国家自然科学基金资助项目(20675015);; 福建省科技重点基金资助项目(200610016);; 福建省青年人才基金资助项目(2006F3058)
【CateGory Index】: R284
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