首页> 外文OA文献 >Determination of oleanolic acid and ursolic acid contents in Ziziphora clinopodioides Lam. by HPLC method
【2h】

Determination of oleanolic acid and ursolic acid contents in Ziziphora clinopodioides Lam. by HPLC method

机译:枣树中齐墩果酸和熊果酸含量的测定。 HPLC法

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

A simple, precise, rapid and accurate, binary-phase high performance liquid chromatographic method has been developed for the determination of oleanolic acid and ursolic acid contents in the Ziziphora clinopodioides Lam. with short run time. Chromatographic separation is achieved by using HPLC system consisting of a Shimadzu LC-6AD and Kromasil C18 column (150 × 4.6 mm, 10 μm, with pre-column), the mobile phase consists of methanol and 0.03 M phosphate buffer (pH = 3, 90:10). Detection wavelength is 214 nm. The speed of flow is 0.5 ml/min. The specimen handing quantity is 10 μl. The oleanolic acid's linearity range is 0.4 ~ 1.2 mg/ml (r = 0.9996). The ursolic acid's linearity range is 0.6 ~ 1.8 mg/ml (r = 0.9996), and the linear relationship is accurate. The average recovery (n = 6) of oleanolic acid is 99.5% (RSD = 1.19%) and ursolic acid is 102.3% (RSD = 1.25%). The content of oleanolic acid and ursolic acid in Ziziphora clinopodioides are 0.76 mg/g and 1.176 mg/g, respectively. The developed HPLC method can therefore be applied to both in vitro studies of oleanolic acid and ursolic acid formulations as well as drug estimation in biological samples.
机译:开发了一种简单,精确,快速和准确的二相高效液相色谱法,用于测定青枣中的齐墩果酸和熊果酸含量。运行时间短。色谱分离是通过使用Shimadzu LC-6AD和Kromasil C18色谱柱(150×4.6 mm,10μm,带预柱)组成的HPLC系统完成的,流动相由甲醇和0.03 M磷酸盐缓冲液(pH = 3, 90:10)。检测波长是214nm。流速为0.5毫升/分钟。样品处理量为10μl。齐墩果酸的线性范围为0.4〜1.2 mg / ml(r = 0.9996)。熊果酸的线性范围为0.6〜1.8 mg / ml(r = 0.9996),线性关系准确。齐墩果酸的平均回收率(n = 6)为99.5%(RSD = 1.19%),熊果酸为102.3%(RSD = 1.25%)。 Ziziphora clinopodioides中齐墩果酸和熊果酸的含量分别为0.76 mg / g和1.176 mg / g。因此,发达的HPLC方法可用于齐墩果酸和熊果酸制剂的体外研究以及生物样品中的药物估计。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号