GC-MS法测定多种食用油中的多环芳烃

Determination of PAHs in Various Edible Oils by GC-MS

多环芳烃是一类常见的环境有机污染物,随着人们对其毒性研究逐步深入,各国相继制定限量要求。随机选取市面上不同种类的食用油,采用GC-MS法进行多环芳烃的测定,评估其食品安全风险。结果表明,15种食用油中苯并[a]芘含量在0.00~9.20μg/kg之间,苯并[a]芘、苯并[a]蒽、苯并[b]荧蒽和苯并菲的含量之和在0.00~28.74μg/kg之间,16种多环芳烃总量在0.00~72.47μg/kg之间。对随机网上购买食品安全风险较高的10份芝麻油进行测定,苯并[a]芘含量在0.00~6.76μg/kg之间,苯并[a]芘、苯并[a]蒽、苯并[b]荧蒽和苯并菲的总量在0.00~9.64μg/kg之间,16种多环芳烃总量在0.00~16.18μg/kg之间。植物油中多环芳烃含量水平相差较大,部分存在一定的食品安全风险,出口企业还应关注苯并[a]芘、苯并[a]蒽、苯并[b]荧蒽和苯并菲含量的水平。

PAHs(polycyclic aromatic hydrocarbons) are a common class of environmental organic pollutants.With the gradual deepening of its toxicity research,various countries have formulated limited requirements.Randomly select different kinds of edible oil in the market,determine the PAHs by GC-MS,and assess its risks.The results show that the content of benzo [a]pyrene in the 15 edible oils ranges from 0.00 to 9.20 μg/kg.The sum of the contents of benzo [a] pyrene,benzo [a] anthracene,benzo [b] fluoranthene and triphenylene range from 0.00 to 28.74 μg/kg.The total amount of 16 PAHs range from 0.00 to 72.47 μg/kg.At random online purchase of 10 copies of sesame oil for determination,the content of benzo [a] pyrene in the 16 edible oils ranges from 0.00 to 6.76 μg/kg.The sum of the contents of benzo [a] pyrene,benzo [a] anthracene,benzo [b]fluoranthene and triphenylene range from 0.00 to 9.64 μg/kg.The total amount of 16 PAHs range from 0.00 to 16.18 μg/kg.The levels of PAH in vegetable oils varies greatly,some parts have food safety risks,and export enterprises should also pay attention to the contents of benzo [a] pyrene,benzo [a] anthracene,benzo [b] fluoranthene and triphenylene.