采用毛细管区带电泳法测定了10种中国产葡萄籽中的4个主要儿茶素类化合物:(+)儿茶素、(-)表儿茶素、(±)表没食子儿茶素、(±)表儿茶素没食子酸酯的含量.在0.02mol/L硼砂和0.005mol/L磷酸盐的混合缓冲体系(pH10.0)的背景缓冲液中,4个化合物在10min内取得了令人满意的分离.迁移时间的重现性(RSD)小于2%,峰面积的重现性(RSD)小于5%.在质量浓度为0.005g/L～0.5g/L时,线性相关系数大于0.995.检测限为3mg/L～10mg/L.该方法简单、快速、准确,可作为葡萄籽分析和药用开发过程中分析儿茶素类化合物的有效方法推广使用.
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