作　　者： ; ; ;

机构地区： 中南大学化学化工学院

出　　处： 《广州化学》 2006年第4期32-36,共5页

摘　　要： 提出了间接测定黄姜中薯蓣皂甙元的原子吸收光谱法。该法基于薯蓣皂甙元能与碱式醋酸铅发生络合反应，生成难溶于水的白色沉淀，经离心分离后，用原子吸收法测定上清液中过量的铅离子，可间接测定薯蓣皂甙元的含量。该法线性范围为0．0～40．0mg／L；相对标准偏差（relative standard deviation，RSD）为0．9％～1.1％；回收率为98．9％～102．9％。 A new method of determining diosgenin by atomic absorption spectrometry （AAS） was studied. The method is based on the reaction of diosgenin with basic Lead （Ⅱ） acetate, and lead to white precipitate. The precipitate was centrifuged to subside. The excess Pb^2＋ in supematant was measured by AAS, and the concentration of diosgenin could be determined indirectly. The linear region is 0.0 ～ 40.0 mg/L, RSD is 0.9% ～1. 1%, and the recovery is 98.9% - 102.9%. The method has been applied to determine diosgenin with good result.

关 键 词： 黄姜 薯蓣皂甙元 间接原子吸收法

领　　域： [理学] [理学]