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离子液体辅助萃取山高粱中4种黄酮类成分的研究

Keywords: 离子液体,山高粱,黄酮,高效液相色谱

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Abstract:

建立离子液体1-己基-3-甲基咪唑六氟磷酸盐([HMIM]PF6)/甲醇溶液为萃取剂超声萃取,结合反相高效液相色谱同时测定山高粱中槲皮素-3-O-β-D-葡萄糖苷、山柰酚-3-β-D-葡萄糖苷、槲皮素和山柰酚4种黄酮成分的方法。采用PurospherstarRP-C18色谱柱(4.6mm×250mm,5μm)进行分离,以乙腈-甲醇-0.4%磷酸水溶液梯度洗脱,流速0.7mL·min-1,紫外检测波长360nm,柱温室温。在优化条件下,槲皮素-3-O-β-D-葡萄糖苷、山柰酚-3-β-D-葡萄糖苷、槲皮素和山柰酚分别在2.54×10-2~2.54,2.50×10-2~2.50,1.54×10-3~0.154,1.49×10-3~0.149μg线性关系良好,平均加样回收率分别为101.1%,98.90%,101.0%,101.6%。该方法绿色环保、简单快速,结果准确可靠,为山高粱中槲皮素-3-O-β-D-葡萄糖苷、山柰酚-3-β-D-葡萄糖苷、槲皮素和山柰酚的分析提供了有效的方法。

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