苦参不同炮制品生物总碱含量测定及HPLC指纹图谱研究
2018-09-18常楚瑞陆平祝龙庆德冉启军王晓丽许德勇
常楚瑞 陆平祝 龙庆德 冉启军 王晓丽 许德勇
【摘 要】 目的:对苦参不同炮制品的生物总碱含量进行测定,并建立苦参生物碱HPLC指纹图谱。方法:采用紫外分光光度法进行苦参生物碱含量测定,采用高效液相色谱法,以Inertsil NH2(5 μm,4.6 mm×250 mm)为色谱柱,乙腈-无水乙醇-3%磷酸(84∶10∶6)为流动相,流速为1.0mL/mim,检测波长为210 nm,柱温为30 ℃。并利用中药色谱指纹图谱相似度评价系统A版软件进行图谱对比。结果:麸制品生物总碱含量最高,为3.955%;炒炭品生物总碱含量最低,为2.604%;各炮制品共有峰的相对保留时间RSD<1.50%,峰面积RSD>26.0%,苦参炮制品指纹图谱相似度在0.231%~0.962%。结论:苦参中主要生物碱成分差异不大,但其量有变化,炮制品的品质不一致,此方法较全面地反映苦参不同炮制品的差异,可用于评价苦参炮制品的质量。
【關键词】 苦参;苦参生物碱;炮制;指纹图谱;质量控制
【中图分类号】R284.1 【文献标志码】 A【文章编号】1007-8517(2018)04-0014-04
Abstract:Objective Determination of different biologicalcontent of Matrine alkaloids, and establish the HPLC fingerprint of alkaloids in Sophora flavescens Ait.Methods Determination of alkaloids content by UV spectrophotometry,use the method of HPLC,a Inertsil NH2 (5μm, 4.6 ×250mm) phase column was used with mobile phase consisited of acetonitrle-anhydrod alcohol- 3% acid solution phosphorie (84∶10∶6) at a flow rate ofthe mL/min. the wavelength of detector was hanol: 3% phosphoric acid as mobile phase, the flow rate is 1.0mL/mim, the detection wavelength is 210nm,the column temperature is nm.the column at 30℃.The experimental data were analyzed by computer aided similarity evaluation software.Results Bran products total alkaloids content was the highest for 3.955%, content of total alkaloids was the lowest which was 2.604%.There are various processed products peak relative retention time RSD<1.50%,and relative retention peak area RSD>26.0%,Sophora processed products fingerprint similarity in 0.231%~0.962%. Conclusion The main alkaloids in Sophora little difference,but its content has changed and inconsistent quality.This method is more comprehensive response to the difference between different Sophora processed products can be used to evaluate the quality of processed products Sophora.
Keywords:Sophora flavercens Ait.; Sophora alkaloids; Processing; Fingerprint; Quality control
苦参是豆科植物苦参Sophora flavercens Ait.的干燥根[1] 。一般在春天和秋天采挖,去除掉苦参的根头及小支根,洗干净,干燥后趁鲜切片。可用于热痢、黄疸尿闭、便血、赤白带下、阴肿阴痒、皮肤瘙痒、湿疹、外治滴虫性阴道炎等病症,是我国的常用传统中药材。由于中药材大多都是生药,多附有泥土或其他异物,或有异味、有毒性、潮湿等不宜于保存,经过一定的炮制处理,可以达到使药物纯净、矫味、降低毒性和干燥而不变质,加强药物效用的目的,减除毒性或副作用,便于储存和便于服用[2-4]。笔者对苦参药材的不同炮制方法进行研究并测定苦参生物碱含量,采用高效液相色谱法对苦参药材提取物的5种不同生物碱进行分离及用中药色谱指纹图谱相似度评价系统A版软件进行图谱对比,为苦参不同炮制原理及炮制品质量评价提供合理的依据。……
