The demonstration of competency and equivalence for the assessment of levels of contaminants and nutrients in primary foodstuffs is a priority within the 10-year strategy for the CCQM Organic Analysis WG series of Track A core comparisons. The area of low polarity analytes in high fat foods had not been covered by the OAWG for many years since the key comparison CCQM-K21 p,p'-DDT in fish oil occurring in 2000. Benzo[a]pyrene (BaP) is one of the markers for the occurrence of PAHs in foods, for which maximum residue limits are enforced in many countries. Edible oil and fats are the main source of human PAH intake. BaP may form in edible oils by pyrolytic processes, such as incomplete combustion of organic substances. Worldwide regulatory limits of BaP in edible fats and oils are from 2.0 μg/kg to 10 μg/kg. Comparable and traceable measurement results for BaP in oil are important worldwide. Thus BaP in edible oil was the model system selected to align within the OAWG strateg...

中文翻译：

---

高脂食品中的CCQM-K146低极性分析物：橄榄油中的苯并[a] py

CCQM有机分析工作组系列A核心比较的十年战略中，优先考虑展示能力和等效性以评估初级食品中的污染物和营养水平。自2000年在鱼油中进行关键比较CCQM-K21 p，p'-DDT以来，OAWG多年来一直未对高脂食品中的低极性分析物进行覆盖。苯并[a] py（BaP）是一种食品中多环芳烃含量的标志，在许多国家都规定了最大残留限量。食用油脂是人体PAH摄入的主要来源。BaP可能通过热解过程（例如有机物质不完全燃烧）在食用油中形成。食用油脂中BaP的全球法规限制为2.0μg/ kg至10μg/ kg。石油中BaP的可比较和可追溯的测量结果在全球范围内都很重要。因此，食用油中的BaP是被选为与OAWG战略保持一致的模型系统。