标准物质在不同挥发性光引发剂迁移污染食品研究中的应用

Application of reference materials in the study of migration of contaminated food by different volatile photoinitiators

中文关键词:  挥发性光引发剂  标准物质  食品安全

英文关键词:volatile photoinitiator  reference material  migration  pollution

中文摘要:

      目前, 食品包装材料中的光引发剂通过迁移污染食品已引起广泛关注。本文综述了国内外不同挥发性光引发剂对食品的污染研究以及标准物质在其中的应用情况。根据研究热度选择二苯甲酮(benzophenone, BP)、4-甲基二苯甲酮(4-methylbenzophenone, 4-MBP)、对-N,N-二甲氨基苯甲酸乙酯[ethyl 4-(dimethylamino)benzoate, EDB]、1-羟基环己基苯基甲酮(1-hydroxycyclohexyl phenyl ketone, PI-184)和2-苯甲酰苯甲酸甲酯(methyl-o-benzoylbenzoate, OMBB)、2,2-二甲氧基-2-苯基苯乙酮(2-methyl-1-2-morpholino-1- propanone, PI-651)、对二甲氨基苯甲酸异辛酯[2-ethylhexyl-4-(dimethylamino)benzoate, EHA)]和2-异丙基硫杂蒽酮(2-isopropylthioxanthone, 2-ITX)分别作为挥发性较强和较弱两类光引发剂的代表, 总结了光引发剂迁移污染机制、分析检测方法, 对比了国内外不同挥发性光引发剂污染、迁移研究的样品基质类型。并分析了国内外研究中的标准物质应用比例、标准物质来源及对新增标准物质的需求。分析发现, 目前国家标准物质资源共享平台可以提供本领域光引发剂研究最多的BP和ITX标准物质, 但对于其他目前关注较多的光引发剂, 如EDB、PI-651、PI-184和OMBB, 应列入新增计划。本文对我国光引发剂类标准物质的研制工作提供了建议, 为我国光引发剂污染研究提供了更广泛的技术支持。

英文摘要:

      Currently, widespread concerns have been raised regarding food contamination caused by the migration of photoinitiators in food packaging materials. This article presented a review of the research on different volatile photoinitiators and their applications as standard substances both domestically and internationally. Based on the research focus, several compounds were selected as representatives of highly volatile and less volatile photoinitiators, including benzophenone (BP), 4-methylbenzophenone (4-MBP), ethyl 4-(dimethylamino)benzoate (EDB), 1-hydroxycyclohexyl phenyl ketone (PI-184), methyl-o-benzoylbenzoate (OMBB), 2,2-dimethoxy-2- phenylacetophenone (PI-651), 2-ethylhexyl-4-(dimethylamino)benzoate (EHA) and 2-isopropylthioxanthone (2-ITX). This paper summarized the mechanisms of photoinitiators migration and contamination, discussed analytical detection methods, compared the types of sample matrices used in the contamination and migration studies of different volatile photoinitiators both domestically and internationally, also analyzed the proportion of standard substances used in domestic and international research, their sources, and the demand for new standard substances. It was found that the current national standard substance resource sharing platform provides the most extensive collection of BP and ITX standard substances for photoinitiators research; however, it was recommended that other widely discussed photoinitiators, such as EDB, PI-651, PI-184 and OMBB, be included in new planning. Suggestions for the development of standard substances for photoinitiators in China were provided in this article, offering broader technical support for the study of photoinitiators contamination in the country.