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高效毛细管电泳同时分离多种酚类物质

Journal of the Chinese Cereals and Oils Association(2010)

Cited 3|Views21
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Abstract
建立了高效毛细管电泳同时分离测定芦丁、槲皮素、绿原酸、咖啡酸、没食子酸和原儿茶酸6种酚类物质的分析方法。考察了缓冲液种类、离子浓度和pH、分离电压、运行温度等电泳参数,确立了最佳的电泳条件:缓冲液为20 mmol/L磷酸二氢钠-20 mmol/L硼砂,pH7.5,分离电压为20 kV,运行温度为30℃,紫外检测波长214 nm。结果表明,6种物质在12 m in内得到完全分离,且各组分质量浓度与峰面积呈良好的线性关系,R2为0.998 7~0.987 4。方法精密度试验中,迁移时间的RSD为0.280%~0.425%,峰面积的RDS为5.228%~8.506%,回收率为85.11%~101.98%。该法快速、简便、准确,具有较高的灵敏度。
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Key words
phenolic acids,high herformance capillary electrophoresis,simultaneous separation
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