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Quantitative analysis and chromatographic fingerprinting for the quality evaluation of Scutellaria baicalensis Georgi using capillary electrophoresis

机译:毛细管电泳定量分析和色谱指纹图谱用于评价黄cut药材的质量

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摘要

Quantitative analysis and chromatographic fingerprinting for the quality evaluation of a Chinese herb Georgi using capillary electrophoresis (CE) technique was developed. The separation was performed with a 50.0 cm (42.0 cm to the detector window) × 75 μm i.d. fused-silica capillary, and the CE fingerprint condition was optimized using the combination of central composite design and multivariate analysis. The optimized buffer system containing 15 mM borate, 40 mM phosphate, 15 mM SDS, 15% (v/v) acetonitrile and 7.5% (v/v) 2-propanol was employed for the method development, and the baseline separation was achieved within 15 min. The determination of the major active components (Baicalin, Baicalein and Wogonin) was carried out using the optimized CE condition. Good linear relationships were provided over the investigated concentration ranges (the values of : 0.9997 for Baicalin, 0.9992 for Baicalein, and 0.9983 for Wogonin, respectively). The average recoveries of these target components ranged between 96.1–105.6%, 98.6–105.2%, and 96.3–105.0%, respectively. CE fingerprints combined with the quantitative analysis can be used for the quality evaluation of .
机译:建立了毛细管电泳(CE)技术定量分析和色谱指纹图谱用于中药Georgi的质量评价。分离以50.0厘米(距检测器窗口42.0厘米)×75微米内径进行。熔融石英毛细管,并结合了中心复合设计和多变量分析,优化了CE指纹条件。用于方法开发的优化缓冲液系统包含15 mM硼酸盐,40 mM磷酸盐,15 mM SDS,15%(v / v)乙腈和7.5%(v / v)2-丙醇。 15分钟使用优化的CE条件进行主要活性成分(黄e苷,黄ical苷和沃贡宁)的测定。在研究的浓度范围内提供了良好的线性关系(黄Ba苷的值分别为:0.9997,黄ical素的值为0.9992和沃贡宁的值为0.9983)。这些目标组分的平均回收率分别为96.1–105.6%,98.6–105.2%和96.3–105.0%。 CE指纹图谱与定量分析相结合可用于香菇的质量评价。

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