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目的建立营养麦片中磷脂的测定方法。方法采用石油醚作为提取溶剂 ,薄层色谱法定性鉴别卵磷脂 ,分光光度法测定磷脂含量。结果方法操作简便、快速 ,样品加标回收率97.2 %～102%。结论本方法可用于产品的监测和质量控制以及对假冒产品的鉴别分析。
Objective To establish a method for the determination of phospholipids in nutritional cereal. Methods Petroleum ether was used as the extraction solvent, and the lecithin was identified by TLC. The phospholipid content was determined by spectrophotometry. Results The method was simple and rapid. The recoveries of spiked samples ranged from 97.2% to 102%. Conclusion This method can be used for product monitoring and quality control and counterfeit product identification analysis.