HPLC法测定黄连、黄芩药对提取物中11个成分的含量
HPLC determination of 11 constituents in combination extracts of Coptidis Rhizoma and Scutellariae Radix
分类号:
出版年·卷·期(页码):2013,33 (1):0-0
DOI:
10.16155/j.0254-1793.2017.01.01
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目的: 建立高效液相色谱法测定黄连、黄芩药对提取物中11个成分(药根碱、表小檗碱、黄连碱、巴马汀、小檗碱、黄芩苷、汉黄芩苷、黄芩素、汉黄芩素、白杨素、千层纸素A)的含量。方法: 采用Phenomoil 5μ C18 BDS(250 mm×4.6 mm,5 μm)色谱柱,流动相为乙腈-水(37:63,内含磷酸二氢钾0.3400 g,十二烷基硫酸钠0.1700 g,磷酸调pH约为4),流速1.0 mL·min-1,检测波长349 nm,柱温30 ℃,对药对中黄连进行测定;采用Agilent ZORBAX SB-C18(250 mm×4.6 mm,5 μm)色谱柱,以乙腈(A)-0.3%磷酸三乙胺(B)水溶液为流动相,梯度洗脱,流速1.0 mL·min-1,检测波长为275 nm,柱温30 ℃,对药对中黄芩进行测定。结果: 药根碱、表小檗碱、黄连碱、巴马汀、小檗碱、黄芩苷、汉黄芩苷、黄芩素、汉黄芩素、白杨素、千层纸素A进样量分别在0.015~0.15 μg(r=0.9997)、0.033~0.33 μg(r=0.9993)、0.17~1.7 μg(r=0.9991)、0.079~0.79 μg(r=0.9991)、0.31~3.1 μg(r=0.9991)、0.42~4.2 μg(r=0.9992)、0.078~0.78 μg(r=0.9995)、0.053~0.53 μg(r=0.9993)、0.016~0.16 μg(r=0.9993)、1.2×10-3~0.012 μg(r=0.9991)、0.010~0.10 μg(r=0.9994)范围内呈良好线性关系;平均回收率(n=5)分别为100.1%、97.7%、97.6%、102.2%、99.4%、99.3%、99.9%、99.8%、101.1%、101.1%、100.3%,RSD分别为2.1%、1.1%、1.2%、0.9%、1.2%、1.8%、1.8%、2.2%、2.0%、1.9%、2.3%。结论: 该方法为黄芩、黄连药对提取物的质量综合评价提供了科学依据。
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