HPLC法同时测定桑叶药材及其炮制品中绿原酸、芦丁和异槲皮苷的含量
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篇名: | HPLC法同时测定桑叶药材及其炮制品中绿原酸、芦丁和异槲皮苷的含量 |
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摘要: | 目的:建立同时测定桑叶药材及其炮制品炒桑叶、蜜桑叶中绿原酸、芦丁和异槲皮苷含量的方法。方法:采用高效液相色谱法。色谱柱为Agilent Zorbax SB-C18,流动相为乙腈-0.2%磷酸(梯度洗脱),流速为1.0 ml/min,检测波长为350 nm,柱温为30 ℃,进样量为10 μl。结果:绿原酸、芦丁、异槲皮苷的检测质量浓度线性范围分别为8.20~82.01 μg/ml(r=0.999 9)、2.76~27.60 μg/ml(r=0.999 9)、4.74~47.39 μg/ml(r=0.999 9);精密度、稳定性、重复性试验的RSD<2%;加样回收率分别为98.58%~100.91%(RSD=1.02%,n=6)、99.19%~101.00%(RSD=0.82%,n=6)、98.41%~101.51%(RSD=1.08%,n=6)。结论:该方法操作简便,稳定性、重复性好,可用于桑叶药材及其炮制品中绿原酸、芦丁和异槲皮苷含量的同时测定。 |
ABSTRACT: | OBJECTIVE: To establish a method for the simultaneous contents determination of chlorogenic acid, rutin and isoquercitrin in Morus alba, fried M. alba and honeyed M. alba. METHODS: HPLC was performed on the column of Agilent Zorbax SB-C18 with mobile phase of acetonitrile -0.2% phosphoric acid (gradient elution) at a flow rate of 1.0 ml/min, detection wavelen- gth was 350 nm, the column temperature was 30 ℃,and injection volume was 10 μl. RESULTS: The linear range was 8.20-82.01 μg/ml for chlorogenic acid (r=0.999 9), 2.76-27.60 μg/ml for rutin (r=0.999 9) and 4.74-47.39 μg/ml for isoquercitrin (r=0.999 9); RSDs of precision, stability and reproducibility tests were lower than 2%; recoveries were 98.58%-100.91% (RSD=1.02%,n=6), 99.19%-101.00% (RSD=0.82%,n=6) and 98.41%-101.51% (RSD=1.08%,n=6),respectively. CONCLUSIONS: The method is simple with good stability and reproducibility, and can be used for the simultaneous determination of chlorogenic acid, rutin and isoquercitrin in different processed drugs of M. alba. |
期刊: | 2016年第27卷第21期 |
作者: | 程聪梅,毛菊华,余乐 |
AUTHORS: | CHENG Congmei,MAO Juhua,YU Le |
关键字: | 桑叶;炮制品;绿原酸;芦丁;异槲皮苷;高效液相色谱法 |
KEYWORDS: | Morus alba; Processed products; Chlorogenic acid; Rutin; Isoquercitrin; HPLC |
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