摘要
建立了反相高效液相色谱法测定不同采收期陆英叶、茎、根中乌索酸和齐墩果酸含量的方法。色谱柱为SymmetryShieldRP18柱(3.9mm×150mm,5μm);流动相为乙腈∶水∶磷酸(体积比,65∶35∶0.1);流速为1.0ml/min;二极管阵列检测器检测,检测波长210nm;柱温25℃。乌索酸线性范围0.096~2.304μg,线性回归系数大于0.9999,检出限为0.3mg/L(3σ);齐墩果酸线性范围0.098~2.352μg,线性回归系数大于0.9997,检出限为0.2mg/L(3σ)。样品中乌索酸的平均回收率为100.3%,RSD为1.5%;齐墩果酸的平均回收率为98.9%,RSD为1.2%(n=5)。该方法简便,准确,线性范围宽,重现性好,适于对含有该成分的药物和药材进行质量评价。
A determination method of ursolic acid and oleanolic acid in leaves, stems and roots of Sambucus chinensis in various collecting periods by reversed-phase high performance liquid chromtograph was established. The chromatographic column, Symmetry Shield RP18(3.9 mm×150 mm,5 μm), ethanenitrile-water-phosphoric acid (65∶35∶0.1, V / V / V) mobile phase with the flow rate of 1.0 ml / min, the detected wavelength (210 nm) and the column temperature(25 ℃) were adopted. The calibration curve of ursolic acid was linear under the content of 0.096~2.304 μg, the correlation coefficient was over 0.999 9, the detected limit was 0.3 mg / L(3σ). The calibration curve of oleanolic acid was linear under the content of 0.098~2.352 μg, the correlation coefficient was over 0.999 7, the detected limit was 0.2 mg / L(3σ).The average recovery of ursolic acid was 100.03 % and RSD was 1.5 %(n=5). The average recovery of oleanolic acid was 98.9 % and RSD was 1.2 %(n=5). The method was simple,accurate and had wider linear range. The method can be adapted to evaluate the quality of medicinal plants that contained ursolic acid and oleanolic acid.
出处
《安徽农业科学》
CAS
北大核心
2005年第4期642-643,666,共3页
Journal of Anhui Agricultural Sciences
基金
国家"863"计划重点资助项目(2002AA2Z3217)。