HPLC法测定食品中金雀异黄素
CHINESE JOURNAL OF FOOD HYGIENE(2003)
Abstract
为保证保健食品的质量,建立了测定食品中金雀异黄素的HPLC方法.试样以乙醚脱脂,甲醇+水(80+20,体积分数)超声提取30 min,定容后过0.45 μm滤膜,上250.0 mm×4.6 mm、粒径10 μm的C18柱,甲醇+醋酸铵(0.050 mol/L,pH 4.6)作流动相,二极管阵列检测器测定.染料木苷、黄豆苷、黄豆苷元对测定不产生干扰.方法回收率85%~110%,相对标准偏差2%~8%,最低检出限为0.10 μg.本方法适用于保健食品中金雀异黄素的测定.
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