| 微波萃取——分光光度法测定党参中黄酮的研究 |
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| 引用本文： | 王庆明,张金生,李丽华,薛丽敏.微波萃取——分光光度法测定党参中黄酮的研究[J].石油化工高等学校学报,2010,23(2):8-10. |
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| 作者姓名： | 王庆明 张金生 李丽华 薛丽敏 |
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| 作者单位： | 辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001 |
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| 摘 要： | 采用微波辅助萃取法提取党参中的黄酮,以分光光度法测定党参中黄酮的质量浓度。通过单因素实验考察了乙醇体积分数、料液比、萃取温度、萃取时间对黄酮萃取效果的影响。结果表明,微波萃取党参中黄酮的优化工艺条件为：乙醇体积分数70%,料液比为1：30,萃取温度85℃,萃取时间15min。在最优条件下测得党参中黄酮的提取率为2.87%,相对标准偏差为0.878%（n=5）,回收率在99%～102%。
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| 关 键 词： | 微波萃取 分光光度法 党参 黄酮 |
Determination of Flavonoids From Codonopsis Pilosula by Microwave-Assisted Extraction and Spectrophotometer |
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| WANG Qing-ming,ZHANG Jin-sheng,LI Li-hua,XUE Li-min.Determination of Flavonoids From Codonopsis Pilosula by Microwave-Assisted Extraction and Spectrophotometer[J].Journal of Petrochemical Universities,2010,23(2):8-10. |
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| Authors: | WANG Qing-ming ZHANG Jin-sheng LI Li-hua XUE Li-min |
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| Affiliation: | (School of Chemistry and Materials Science,Liaoning Shihua University,Fushun Liaoning 113001,P.R.China) |
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| Abstract: | Flavonoids were extracted from Codonopsis pilosula by microwave-assisted extraction and its contents were determined by spectrophotometer.The extraction rate of flavonoids were investigated by single factor experiment included alcohol volume fraction,ratio of material to liquid,extraction temperature,and extraction time.The best conditions for procedure were as follows：extracting time is 15 min,extracting temperature is 85 ℃,the volume fraction of ethanol is 70%,and material to liquid ratio is 1：30.Under the optimal conditions,the amount of flavonoids in codonopsis pilosula was2.87%,RSD=0.878%（n=5）,and their recovery is between 99%～102%. |
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| Keywords: | Microwave-assisted extraction Spectrophotometry Codonopsis pilosula Flavonoids |
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