...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Analyst: The Analytical Journal of the Royal Society of Chemistry: A Monthly International Publication Dealing with All Branches of Analytical Chemistry >Separation and determination of protocatechuic aldehyde and protocatechuic acid in Salivia miltorrhrza by capillary electrophoresis with amperometric detection
【24h】

Separation and determination of protocatechuic aldehyde and protocatechuic acid in Salivia miltorrhrza by capillary electrophoresis with amperometric detection

机译：毛细管电泳-安培检测法分离测定唾液中原儿茶醛和原儿茶酸

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Capillary electrophoresis with amperometric detection was applied to separate and determine protocatechuic aldehyde and protocatechuic aicd in Salivia miltorrhrza preparations. The electrode used was a 0.3 mm diameter carbon disk electrode fixed in a wall-jet with amperometric detection. Under the optimum conditions, the two analytes were separated completely within 8 min. Excellent linearity was obtained in the concentration ranges of 0.25-100.0 #mu#g ml~(-1) and 0.50-100.0 #mu#g ml~(-1) for protocatechuic aldehyde and protocatechuic acid, respectively. The detection limits were 0.10 #mu#g ml~(-1) of protocatechuic aldehyde and 0.25 #mu#g ml~(-1) of protocatechuic acid, which were found to be lower than those of other methods that determine protocatechuic aldehyde (3,4-dihydroxybenzaldehyde) and protocatechuic acid (3,4-dihydrobenzoic acid) simultaneously. The mean recoveries of protocatechuic aldehyde and protocatechuic acid were 97.4% and 103.3%. This method has been successfully applied to monitor these two components in real samples such as Salivia miltorrhrza and its two traditional Chinese medicinal preparations.
机译：采用毛细管电泳和安培检测法来分离和测定Salivia miltorrhrza制剂中的原儿茶醛和原儿茶酸。所使用的电极是直径为0.3 mm的碳盘电极，该电极固定在具有电流检测的壁式喷嘴中。在最佳条件下，两种分析物在8分钟内完全分离。原儿茶醛和原儿茶酸的浓度范围分别为0.25-100.0＃mu＃g ml〜（-1）和0.50-100.0＃mu＃g ml〜（-1），具有极好的线性。检出限为原儿茶醛0.10＃mu＃g ml〜（-1）和原儿茶酸0.25＃mu＃g ml〜（-1），低于其他测定原儿茶醛的方法（ 3,4-二羟基苯甲醛）和原儿茶酸（3,4-二氢苯甲酸）同时进行。原儿茶醛和原儿茶酸的平均回收率分别为97.4％和103.3％。该方法已成功应用于监测真实样品中的这两个成分，例如Salivia miltorrhrza及其两种传统中药制剂。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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