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出 处:《中成药》2006年第2期185-188,共4页Chinese Traditional Patent Medicine
摘 要:目的:利用梯度洗脱,建屯了反相高效液相色谱法同时分离测定了一清胶囊(大黄、黄莲、黄芩)中各个药材的多种有效成分-芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚、黄芩苷和盐酸小檗碱的方法。方法:采用Kromasil C18色谱卡丰(250mm×4.6mm,5.0μm),流动相A为0.5%三乙胺水溶液(醋酸调pH3.0,内含5mmol/L十二烷基磺酸钠);流动相B为甲醇-乙腈(50:50),梯度洗脱,检测波长254nm,流速1.0mL/min。结果:一清胶囊中7种有效成分含量测定方法的线性关系良好,相关系数分别为0.9994~0.9999;同收率分别为95.2%-102.2%,RSD为0.8%-2.0%。结论:该法专腾性强,结果准确可靠,重复性好,可用于一清胶囊中芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚、黄芩苷、盐酸小檗碱的含量测定,更好地控制一清胶囊的质量。AIM : The multiple effective components in Yiqing Capsule ( Radix et Rhizoma Rhei, Rhizoma Coptidis,Radix Scutellariae) were analyzed by RP-HPLC. METHODS: A column of Kromasil C18 (250 mm × 4.6 mm,5μm)was used. The mobile phase was composed of A 0.5% triethylamine (pH3.0,containing 5 mmol/L SDS) ,B methanol and acetonitrile (50: 50) with gradient elution. The flow rate was 1.0 mL/min with the detection wavelength at 254 nm. RESULTS: In tile linear range the correlation coefficients ranged from 0. 999 4 to 0. 999 9. The average recoveries were 95.2%-102.2% with corresponding RSD of 0. 8%-2.0%, respectively. CONCLUSION: Tile method is rapid,accurate and reliable. It can he used to control the quality of Yiqing Capsule.
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