Abstract: A high performance liquid chromatographic (HPLC) method was developed for the determination of naringin in milk and dairy products. Samples were extracted with methanol, and the analytes were separated on a C18 column using a mobile phase consisting of 0.1% acetic acid aqueous solution and acetonitrile (75:25, V/V), detected by a diode array detector at 284 nm and quantified by an external standard method. The results showed that the linearity of this method was good in the concentration range of 5–500 μg/mL with a correlation coefficient of 0.999 9. The recoveries of powdered and liquid milk power and yogurt spiked at 0.02, 0.04, and 0.08 g/100 g were 96.2%–103.2%, 96.3%–103.7%, and 99.7%–104.1%, respectively, with relative standard deviations (n = 6) of 1.12%–2.31%, 1.25%–1.85%, and 1.24%–1.66%, respectively. The reported method is simple, rapid, accurate, repeatable, and suitable for the determination of naringin in milk and dairy products.

Key words: high performance liquid chromatography; dairy products; milk powder; liquid milk; yogurt; naringin

摘要： 建立高效液相色谱法测定乳与乳制品中柚皮苷含量的方法。样品用甲醇提取，在284 nm波长下，流动相为体积分数0.1%醋酸水溶液-乙腈（75∶25，V/V），C18色谱柱分离，经二极管阵列检测器检测，外标法定量。结果表明：柚皮苷在5～500 μg/mL质量浓度范围内线性关系良好，相关系数为0.999 9；分别向乳粉、液态乳和酸乳样品中在加入柚皮苷标准品0.02、0.04、0.08 g/100 g时，加标回收率分别为96.2%～103.2%、96.3%～103.7%和99.7%～104.1%，相对标准偏差分别为1.12%～2.31%、1.25%～1.85%和1.24%～1.66%。该检测方法简便、快速、准确、重复性好，能够测定乳与乳制品中柚皮苷的含量。

关键词: 高效液相色谱法；乳制品；乳粉；液态乳；酸乳；柚皮苷