HPLC法同時(shí)測定大黃-黃連藥材中5種蒽醌類成分的含量及最優(yōu)配伍研究
發(fā)布時(shí)間:2018-09-03 14:39
【摘要】:目的:建立同時(shí)測定大黃-黃連藥材中5種蒽醌類成分含量的方法,并優(yōu)選大黃-黃連藥材質(zhì)量比。方法:采用高效液相色譜法。色譜柱為Zorbax SB-C_(18)(250 mm×4.6 mm,5μm),流動相為乙腈-0.05 mol/L磷酸二氫鉀(48:52,V/V,每100 mL中加十二烷基硫酸鈉0.4 g,磷酸調(diào)節(jié)p H至4.0),流速為1 mL/min,檢測波長為254 nm,柱溫為25℃,進(jìn)樣量為10μL?疾齑簏S-黃連藥材質(zhì)量比為1:1、1:2、2:1、2:3、3:2時(shí)配伍藥材中蘆薈大黃素、大黃酸、大黃素、大黃酚、大黃素甲醚的含量。結(jié)果:蘆薈大黃素、大黃酸、大黃素、大黃酚、大黃素甲醚進(jìn)樣量分別在0.652~3.081、0.704~3.422、1.280~6.197、0.633~0.324、1.326~5.954μg范圍內(nèi)與各自峰面積積分值呈良好線性關(guān)系(r≥0.999 7),精密度、穩(wěn)定性、重復(fù)性試驗(yàn)的RSD均小于2.0%(n=6),平均加樣回收率為98.92%~100.37%(RSD≤2.26%,n=6)。大黃-黃連藥材質(zhì)量比為2:1時(shí),5種蒽醌類成分總量最高。結(jié)論:本方法精密度、穩(wěn)定性、重復(fù)性良好,可用于不同配伍比大黃-黃連藥材的質(zhì)量檢定;大黃-黃連藥材的最佳質(zhì)量比為2:1。
[Abstract]:Objective: to establish a method for the simultaneous determination of five anthraquinones in rhubarb and Coptis chinensis, and to optimize the mass ratio of rhubarb and Coptis chinensis. Methods: high performance liquid chromatography was used. The chromatographic column was Zorbax SB-C_ (18) (250 mm 脳 4.6 mm,5 渭 m), mobile phase was acetonitrile-0.05 mol/L potassium dihydrogen phosphate (48: 52 V / V, 0.4 g sodium dodecyl sulfate per 100 mL, adjusted pH to 4.0 by phosphoric acid). The flow rate of 1 mL/min, was 25 鈩,
本文編號:2220266
[Abstract]:Objective: to establish a method for the simultaneous determination of five anthraquinones in rhubarb and Coptis chinensis, and to optimize the mass ratio of rhubarb and Coptis chinensis. Methods: high performance liquid chromatography was used. The chromatographic column was Zorbax SB-C_ (18) (250 mm 脳 4.6 mm,5 渭 m), mobile phase was acetonitrile-0.05 mol/L potassium dihydrogen phosphate (48: 52 V / V, 0.4 g sodium dodecyl sulfate per 100 mL, adjusted pH to 4.0 by phosphoric acid). The flow rate of 1 mL/min, was 25 鈩,
本文編號:2220266
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