黄芩素稳定性研究  

Study on Stability of Baicalein

作　　者：姚亚红[1] 张立伟[1] 

机构地区：[1]山西大学分子科学研究所,太原市030006

出　　处：《光谱实验室》2006年第2期346-348,共3页Chinese Journal of Spectroscopy Laboratory

基　　金：山西省自然科学基金(20041102)资助项目

摘　　要：用紫外光谱研究了光、温度、pH、Na2SO3、FeSO4及抗坏血酸对黄芩素稳定性的影响。在室温条件下,黄芩素溶液的吸光度值在6h内强度有明显的下降;当温度升高或在避光条件下,偏酸性黄芩素溶液的吸光度值在6h内强度不变,而碱性条件下依然有下降趋势;但黄芩素溶液加入抗坏血酸或Na2SO3后,吸光度值可稳定不变。本文研究提示:黄芩素对光和pH稳定性差;抗坏血酸和Na2SO3具有提高黄芩素溶液稳定性的作用。The effects of light,temperature,pH,vitamin C and sodium sulfite on the stability or Baicalein were studied by UV-Vis spectrum. The absorbency intensity of Baicalein at 272nm obviously decreases in 8hr in the condition of keeping the solution at the room-temperature, while acid Baicalein solution can stabilize for 6hr. At the high temperature or in the dark,or in pH 10 the additions of small amounts of vitamiia C or sodium sulfite can stabilize the solution.

关 键 词：黄芩素 稳定性 紫外-可见吸收光谱. 

分 类 号：O657.32[理学—分析化学]