高效液相色谱法测定地沟油中脂肪醛类物质
详细信息Determination of aliphatic monoaldehydes in hogwash oil by HPLC
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摘要: 地沟油是质量极差的非食用油,若食用会严重危害人的身体健康。本文利用地沟油中存在特异性脂肪醛类物质的特点,采用2,4-二硝基苯肼作为醛的衍生试剂,应用高效液相色谱方法有效鉴别、检测精炼地沟油,并通过此方法对合格食用油进行对比测定,结果表明此方法高效、灵敏、准确,可以为有关部门加强地沟油的监督管理提供技术支持。Abstract: Hogwash oil is the poor quality illegal cooking oil. Illegal or adulterated oils are harmful to the human health. A simple and effective derivatized with 2, 4-dinitrophenylhydrazine method had been developed for sensitive determination aliphatic monoaldehydes, including formaldehyde, acetaldehyde, propanal, butanal, pentanal and hexanal in various oil samples to identify the illegal oil by HPLC. The result showed that the proposed method provided a reliable and sensitive quantitative evaluation for illegal cooking oil sample matrices, moreover, provided technical support for the supervision and administration of the edible oils.
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