高效液相色谱法同时测定黑米酒中11种酚类物质

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建立了高效液相色谱测定黑米酒中11种酚类化合物的方法.采用VenusilC18色谱柱(250mm×4.6mm,5μm)分离,流动相为50%乙腈和超纯水,分别加1%乙酸,采用梯度洗脱,流速为1.0mL/min,进样量20μL,柱温30℃,检测波长260hm、320hm.各组分的质量浓度与其峰面积具有良好的线性关系,相关系数均大于0.996,且11种酚类物质在45min内得到了较好分离.方法回收率为83.5%~105.1%,相对标准偏差为1.3%~3.3%.该方法可用于米酒中黄酮、酚酸类化合物的定量分析.
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