紫外分光光度法测定葛根黄豆甙元的电离常数  

ULTRAVIOLET SPECTROPHOTOMETRIC DETERMINATION OF IONIZATION CONSTANTS OF DAIDZEIN

作　　者：王国清[1] 周润亚 

机构地区：[1]沈阳药学院无机化学教研室

出　　处：《沈阳药学院学报》1992年第1期63-65,共3页

摘　　要：NaOH滴定葛根黄豆甙元的电导实验表明:它足一个二元酸。用紫外分光光度法测定了它的电离常数,其pK_(1a)和pK_(2a)值分别为7.48±0.04和9.53±0.04.Experiments of conductometric titration of Daidzein with NaOH revealed that Daidzein is a dibasic. Its ionization constants were determined by ultraviolet spectrophotometric method, the pK_(?) and pK_2. values being 7.48±0.04 and 9.53±0.04 respectively.

关 键 词：葛根黄豆甙元 电离常数 分光光度法 

分 类 号：R284.1[医药卫生—中药学]