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首页> 外文期刊>Electroanalysis >Determination of active ingredients of Polygonum cuspidatum Sied. et Zucc. by capillary electrophoresis with electrochemical detection
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Determination of active ingredients of Polygonum cuspidatum Sied. et Zucc. by capillary electrophoresis with electrochemical detection

机译：虎杖中有效成分的测定。 et Zucc。通过毛细管电泳和电化学检测

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High-performance capillary electrophoresis with electrochemical detection (CE-ED) was employed to analyze active ingredients of Polygonum cuspidatum Sied. et Zucc. in crude herbs and compound medicines. trans-Resveratrol, emodin, chrysophanol, and them are major important active ingredients. Operated in a wall-jet configuration, a 300 pm diameter carbon-disk electrode was used as the working electrode, which exhibits good response at + 950 mV (vs. SCE) for the four analytes. Under the optimum conditions, these analytes were base-line separated within 27 min in a borax buffer (pH 8.7). Notably, excellent linearity was obtained over two orders of magnitude with detection limit (S/N = 3) ranged from 4.2 x 10(-7) to 5 x 10(-8) g mL(-1) for all analytes. This method was successfully used in the analysis of Polygonum cuspidatum Sied. et Zucc. and Jindan tablets with relatively simple extraction procedures, and the assay results were satisfactory.
机译：采用高效毛细管电泳-电化学检测技术（CE-ED）分析虎杖中的有效成分。 et Zucc。在粗草药和复合药物中。反式白藜芦醇，大黄素，菜油酚是主要的重要活性成分。以壁喷射配置操作，直径为300 pm的碳盘电极用作工作电极，该电极对四种分析物在+ 950 mV（相对于SCE）下显示出良好的响应。在最佳条件下，将这些分析物在硼砂缓冲液（pH 8.7）中于27分钟内进行基线分离。值得注意的是，所有分析物的检测限（S / N = 3）在两个数量级上均具有出色的线性，检测限（S / N = 3）为4.2 x 10（-7）至5 x 10（-8）g mL（-1）。该方法已成功用于虎杖的分析。 et Zucc。金丹片的提取工艺相对简单，测定结果令人满意。

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