摘要:目的建立同时测定葡萄籽提取物中原花青素B1和B2含量的方法。方法采用RP-HPLC法。色谱柱为Kromasil C18柱(250mm×4.6mm,5μm),以甲醇-体积分数0.1%磷酸溶液为流动相,梯度洗脱,检测波长280nin。结果原花青素B1和B2的质量浓度分别在23.0-230mg·L^-1(r=0.9991)和14.5~145mg·L^-1(r=0.9994)内与峰面积呈良好的线性关系;平均回收率分别为96.3%和97.5%,RSD分别为1.4%和1.3%。结论该方法简便、准确、重复性好,可用于测定葡萄籽提取物中原花青素B1和B2的含量。
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