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目的:了解重庆市售塑桶装食用油中塑化剂的污染情况,为相关行政职能部门加强监管提供依据。方法:2014年9-11月,在重庆市内7个区县的大型超市和农贸市场等流通领域随机采购16个品牌的塑桶装食用油共143件,采用在线凝胶渗透色谱-气象色谱-质谱法检测其中的16种邻苯二甲酸酯类物质含量,并用《GB/T 21911-2008食品中邻苯二甲酸酯的测定》对所得到的阳性结果进行复查。结果:所采集的143件食用油样品中DBP检出率为40%;DEHP检出率为100%;DINP检出率为16%,其余种类的邻苯二甲酸酯类物质未检出,所有检出样品中除3件DBP样品超标外,其余均小于法规限量。结论:重庆市售塑桶装食用油中不同程度的检出邻苯二甲酸酯类物质,其污染来源极有可能是从塑料包装迁移到食用油中,塑桶装食用油中的塑化剂迁移问题需要引起监管部门的重视。
OBJECTIVE: To understand the pollution of plasticizers in plastic edible cooking oil in Chongqing and provide the basis for the relevant administrative departments to strengthen their supervision. METHODS: From September to November 2014, 143 randomly purchased plastic bottles of 16 brands were distributed in circulation areas such as large-scale supermarkets and farmers’ markets in 7 districts and counties in Chongqing. The samples were analyzed by online gel permeation chromatography-gas chromatography - Mass spectrometry to detect the content of 16 kinds of phthalates, and with “GB / T 21911-2008 Determination of phthalates in food” to the positive results of the review. Results: The detection rate of DBP in the 143 samples was 40%, the detection rate of DEHP was 100%, the detection rate of DINP was 16%, and the remaining phthalates were not detected. In addition to three samples detected DBP samples exceeded, the rest are less than the regulatory limits. CONCLUSION: There are different levels of phthalates detected in Chongqing bottled cooking oil. The sources of pollution are most likely to migrate from plastic packaging to edible oil. The plasticizer in plastic edible oil Migration needs to be regulators attention.