和厚朴酚的吸附伏安法研究

STUDY ON THE ADSORPTIVE VOLTAMMETRY OF HONOKIOL

和厚朴酚在0．1mol·L-1NH3－NH4Cl底液中，出现一灵敏吸附伏安还原峰，Ep=0.23V（vs．Ag／AgCl）．当富集时间为3min时，峰电流与和厚朴酚浓度在1.0×10-8～1.0×10－7mol·L-1范围内呈线性关系，检测限为3.0×10－9mol·L－1．可用于中药厚朴的测定．

In 0.1 mol. L-1 NH2- NH4Cl solution, a Well reduction wave of Honokiol is obtained by means of adsorptive voltammetry. The peak potential Ep is equal to-0.23V (vs.Ag/AgCl). After preconcentration of 3min, the linear range between the peak current and the concenthetion of Honokiol is 1.0×10-8 ~ 1.0×10-7mol·L-1 with a detection limit of 3.0 ×10-9 mol·L-1. This method can be applied to the determination of Honokiol in Chinese Medicine Houpu.