The invention discloses a thin layer identification method for Coptis chinensis flower, which comprises the following steps: (1) taking the identified Coptis chinensis flower, drying the powder, taking 0.25g Coptis chinensis flower powder in a conical bottle, adding anhydrous methanol 25ml, ultrasound 30min, filtering, and taking the continuous filtrate as the test solution; (2) taking berberine hydrochloride, preparing the solution with the concentration of 800ug/ml as the reference solution; (3) absorbing the solution of the test product; The liquid and the control solution were separately placed on the same silica gel G thin-layer plate. Petroleum ether, trichloromethane and methanol with a volume ratio of 5:3:2 were used as the developer. The samples were taken out, dried and inspected under 365 nm ultraviolet lamp. Compared with the reference chromatogram, the samples showed the same color spots at the corresponding position of Rf value of 0.93 +0.02, while the sample chromatogram also showed the Rf value of 0.02. Spots appeared at the positions of 35 (+0.05) and 0.77 (+0.05). The method of the invention contributes to the quality control of Coptis chinensis and provides a scientific basis for formulating the quality standard of Coptis chinensis.
【技术实现步骤摘要】
黄连花的薄层鉴别方法
本专利技术涉及一种黄连花的薄层鉴别方法,属于中药分析
技术介绍
黄连花(LysimachiadavuricaLedeb.)系毛茛科植物黄连(CoptischinensisFranch.)、三角叶黄连(C.deltoideaC.Y.ChengetHsiao)或云连(C.teetaWall.)所开的花,文献报道,其含有丰富的对人体有用的氨基酸及矿物质元素。黄连作为一种传统中药材,具有很强的抗菌泻火能力,现代医学研究表明还具有降血糖、降血脂、抗血小板凝聚等二十余种功能。花作为植物营养成分富积部位,开发利用黄连花具有重要的经济价值和社会价值。薄层鉴别有助于黄连花的质量控制。目前,药典和各省中药材标准均没有黄连花薄层鉴别方法的记载。
技术实现思路
本专利技术的目的在于提供黄连花的薄层鉴别方法。本专利技术提供的黄连花的薄层鉴别方法包括如下步骤:(1)取待鉴定的黄连花,烘干后粉粹,取0.25g黄连花粉末于锥形瓶中,加无水甲醇25ml,超声30min,滤过,取续滤液作为供试品溶液;(2)取盐酸小檗碱,配制成浓度为800ug/ml的溶液,作为对照品溶液;(3)吸取供试品溶液和对照品溶液分别点于同一薄层板上,以体积比为5:3:2的60℃~90℃石油醚-三氯甲烷-甲醇为展开剂展开,取出,晾干,置365nm紫外灯下检视,供试品色谱中,与对照品色谱相比,在Rf值为0.93±0.02的相应位置,显相同颜色的斑点,同时供试品色谱还在Rf值为0.35±0.05和0.77±0.05的位置出现斑点。进一步地,步骤(3)中展开温度为29℃,展开距离为9.0cm,点样 ...
【技术保护点】
1.黄连花的薄层鉴别方法,其特征在于包括如下步骤:(1)取待鉴定的黄连花,烘干后粉粹,取0.25g黄连花粉末于锥形瓶中,加无水甲醇25ml,超声30min,滤过,取续滤液作为供试品溶液;(2)取盐酸小檗碱,配制成浓度为800ug/ml的溶液,作为对照品溶液;(3)吸取供试品溶液和对照品溶液分别点于同一硅胶G薄层板上,以体积比为5:3:2的60℃~90℃石油醚‑三氯甲烷‑甲醇为展开剂展开,取出,晾干,置365nm紫外灯下检视,供试品色谱中,与对照品色谱相比,在Rf值为0.93±0.02的相应位置,显相同颜色的斑点,同时供试品色谱还在Rf值为0.35±0.05和0.77±0.05的位置出现斑点。
【技术特征摘要】
1.黄连花的薄层鉴别方法,其特征在于包括如下步骤:(1)取待鉴定的黄连花,烘干后粉粹,取0.25g黄连花粉末于锥形瓶中,加无水甲醇25ml,超声30min,滤过,取续滤液作为供试品溶液;(2)取盐酸小檗碱,配制成浓度为800ug/ml的溶液,作为对照品溶液;(3)吸取供试品溶液和对照品溶液分别点于同一硅胶G薄层板上,以体积比为5:3:2的60℃~90℃石油醚...
【专利技术属性】
技术研发人员:徐玉玲,刘涛,杨慧,郭晓恒,杨俊莉,曾奇璐,
申请(专利权)人:成都大学,
类型:发明
国别省市:四川,51
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