HPLC 法测定紫参胶囊中芍药苷的含量HPLC 法测定紫参胶囊中芍药苷的含量摘要:建立紫参胶囊中芍药苷的测定方法,采纳高效液相色谱法,色谱柱:Kromasil C18 柱,流动相:乙腈-1%磷酸溶液(30:70),流速:1.0ml·min-1,检测波长:270nm。芍药苷在之间线性关系良好,r=0.9998;平均加样回收率为 98.9%,(n=5,RSD=0.8%)。该方法操作简单,分离效果好,重复性好,可以用于紫参胶囊的质量控制。关键词:紫参胶囊;芍药苷:含量测定;HPLC 紫参胶囊是在中医理论指导下研发的新中药复方制剂,由紫河车、太子参、白芍、酸枣仁、茯神等十味中药组成,具有温肾填精,双调阴阳的功效,用于绝经期综合症,闭经,月经不调,不孕症等。芍药苷为方中主药白芍中主要有效成分,但原标准中仅对其定性鉴别没有含量测定方法。为控制产品质量,保证疗效,我们建立了制剂中芍药苷的含量测定方法。Determination of Paeoniflorin in Zishen Capsules by HPLC Cheng Shi-Yun1 ,Hao Zi-Xin2(1.Anhui Provincial Institute for Food and Drug Control,hefei,230051 ;2.Anqing Institute for Drug Control,Anqing,Anhui)ABSTRACT A HPLC method for the determination of paeoniflorin in Zishen Capsules was established.A Kromasil C18 column was uesd with acetonitrile and water and phosphoric acid(30:70:1) as the mobile phase.The flow rate was 1.0ml·min-1.The detection wavelength was 230nm.The linear range was(r=0.9998)and the average recovety was %( n=5,RSD=0.8%).The method is simple and sensitive with good separation efficiency .It can be used in the standard of Zishen Capsules.KEY WORDS HPLC;Zishen Capsules;paeoniflorin;determination1 材料与仪器 高效液相色谱仪,紫外检测器。芍药苷对比品(中国药品生物制品检定所,批号:);紫参胶囊(某医院提供);甲醇、乙腈为色谱纯,重蒸水,其它试剂为分析纯。2 方法与结果2.1 色谱条件色谱柱:Kromasil C18 柱(4.6mm×250mm,5μm),流动相:乙腈-0.1%磷酸溶液(15:85),流速:1.0ml·min-1,检测波长:230nm,柱温:25;进样量:20μl。理论板数:大于。分离度:。2.2 溶液的制备2.2.1 对比品溶液的制备精密称取芍药苷对比品 mg,置 ml 量瓶中,加甲醇溶解并稀释...