摘要
目的用HPLC法测定八正胶囊中的大黄素、大黄酚。方法采用菲罗门C18色谱柱(250mm×4.6mm,5μm),流动相为乙腈-甲醇-0.1%磷酸溶液(42:23:35),流速1.0mL·min-1,检测波长254nm。结果大黄素、大黄酚的线性范围分别为0.0267~0.4272μg(r=0.9998)、0.0417~0.6677μg(r=0.9999),总大黄素、总大黄酚、游离大黄素、游离大黄酚的平均加样回收率分别为97.35%(RSD=1.7%)、98.39%(RSD=0.4%)、100.70%(RSD=1.20%)、104.41%(RSD=0.9%)。结论所用方法专属性好,准确、重复性好,可作为八正胶囊质量控制的方法之一。
OBJECTIVE To establish an HPLC method to determine the contents of emodin and chrysophanol in Bazheng capsules. METHODS Phenomenex - C18 column(250 mm × 4.6 mm,5 μm) was used. Acetonitrile - methanol - 0.1% phosphoric acid solu- tion(42 : 23 : 35) was used as the mobile phase at a flow rate of 1.0 m.rain-1, and the detection wavelength was 254 nm. RESULTS The calibration curves showed good linearity in the range of 0. 0267 -0. 4272μg (emodin),0. 0417 -0. 6677 μg (ehrysophanol). The average recoveries were 97.35 % (RSD = 1.7 % ) ,98.39% (RSD = 0.4% ) , 100.70% (RSD = 1.2% ) , 104.41% (RSD =0. 9% ) ,respectively. CONCLUSION The method is accurate and reproducible,which can be used in the quality control of Bazheng capsules.
出处
《华西药学杂志》
CAS
CSCD
北大核心
2014年第2期201-203,共3页
West China Journal of Pharmaceutical Sciences