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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.
The conductivity experiment of NaOH titration of pueraria daunzein indicated that it is a dicarboxylic acid. Its ionization constant was determined by UV spectrophotometry. Its pK_(1a) and pK_(2a) values were 7.48±0.04 and 9.53±0.04, respectively.