研究了阿魏酸在玻碳电极上的电化学行为,优化了测定参数,建立了一种直接测定阿魏酸的电分析测试方法. 阿魏酸在玻碳电极上于醋酸盐缓冲溶液中于-1.0～1.2 V处产生1对氧化还原峰,氧化峰电流与阿魏酸的浓度在5×10-5～1×10-3mol/L之间有良好的线性关系,线性回归方程为: Ip=19.19+3.515×104c,相关系数R为0.994 1,检出限为1×10-6 mol/L. 适用于中成药中阿魏酸含量的测定,该方法用于逍遥丸中痕量阿魏酸的测定,回收率在95%～106%之间.
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