【摘要】 潲水油被炼制并流回食用油行列的事件逐年增多 ,为防止此类有害油品流回食用油行列 ,寻找快速而准确的鉴别方法 ,对从市场购买的常见食用植物油以及采集到的潲水油、煎炸老油进行薄层色谱分析 ,发现潲水油和煎炸老油的薄层色谱有明显的拖尾斑 ,而食用植物油则没有。拖尾斑成分经柱色谱分离并进行红外分析 ,结果表明 ,潲水油、煎炸老油的拖尾成分是合格食用油所不含的醛、酮类化合物。薄层色谱法可以作为鉴别合格食用植物油与潲水油、煎炸老油的快速方法。更多还原

【Abstract】 In the latest several years,hogwash oil were refined and used as edible oil.It would do harm to the health of people.To look for the method that can distinguish the hogwash oil from good edible vegetable oil and to prevent it from coming back to the edible oil market,thin layer chromatography was used to analyze the good edible vegetable oil,frying oil and hogwash oil.The results show that there is great different between the good edible oil and frying oil,hogwash oil.After silica gel column chromatography separation and Infra-redspcctrometry analysis,there is a great deal of aldehyde and ketone in the frying oil and hogwash oil which can not found in good edible oil.Thin layer chromatography can be a quick method to distinguish the frying oil,hogwash oil from good edible vegetable edible oil.更多还原