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黄芩素稳定性研究
引用本文:姚亚红,张立伟. 黄芩素稳定性研究[J]. 光谱实验室, 2006, 23(2): 346-348
作者姓名:姚亚红  张立伟
作者单位:山西大学分子科学研究所,太原市,030006;山西大学分子科学研究所,太原市,030006
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.

关 键 词:黄芩素  稳定性  紫外-可见吸收光谱
文章编号:1004-8138(2006)02-0346-03
收稿时间:2005-11-30
修稿时间:2005-12-08

Study on Stability of Baicalein
YAO Ya-Hong,ZHANG Li-Wei. Study on Stability of Baicalein[J]. Chinese Journal of Spectroscopy Laboratory, 2006, 23(2): 346-348
Authors:YAO Ya-Hong  ZHANG Li-Wei
Affiliation:Institute of Molecular Science, Shanxi University, Taiyuan 030006, P. R. China
Abstract:The effects of light,temperature,pH,vitamin C and sodium sulfite on the stability of 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 vitamin C or sodium sulfite can stabilize the solution.
Keywords:Baicalein  Stability  UV-Vis Spectrum
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