定量分析食品中的矿物油污染物

Quantitative analysis of mineral oil hydrocarbons in food

中文关键词:  食品  矿物油饱和烃  矿物油芳香烃  在线液相-气相色谱联用法  固相萃取

英文关键词:food  mineral oil saturated hydrocarbons  mineral oil aromatic hydrocarbons  on-line coupled with high performance liquid chromatography-gas chromatography-flame ionization detector  solid phase extraction

中文摘要:

      矿物油是碳数为10~50的直链、支链和烷基取代的环状饱和烷烃与芳香烃的混合物, 其化学组成非常复杂。近年来, 食品中的矿油油污染问题受到持续关注, 主要原因是食品包装涉及使用回收纸和再生纸, 其残留印刷油墨中的大量工业级矿物油造成与其接触食品的污染。调查显示: 几乎所有食品中都或多或少含有矿物油。目前, 国内对于食品中矿物油的分析方法还仅局限于定性鉴别。欧洲对矿物油的定量研究较多, 陆续开发出在线联用的高效液相色谱-气相色谱-氢火焰离子化器检测法(HPLC-GC-FID)、离线固相萃取法(SPE-GC-FID)以及二维气相色谱法(GC×GC)等定量分析方法。本文综述了食品中矿物油污染物的最新分析技术、操作步骤以及定量结果的数据处理方法, 目的是通过借鉴, 研发出适用于我国食品中矿物油的定量分析方法, 开展市售食品调查, 保障食品安全。

英文摘要:

      Mineral oil hydrocarbons (MOH) was comprised of highly complex mixtures that including principally straight and branched alkanes, alkyl-substituted cyclo-alkanes (mineral oil saturated hydrocarbons, MOSH) and aromatic hydrocarbon (mineral oil aromatic hydrocarbons, MOAH), which contained 10 to 50 carbon atoms. MOH pollutants in food mainly derived from food packaging materials that made from recycled paper and board, printing inks applied to paper and board. Food was contaminated by migration of MOH in printing inks of recycled food packaging paper and board. At present, MOSH are different levels in nearly all foods according to recently published literature. However, numerous qualitatively analytical methods of MOH in food were reported in domestic academic articles due to MOH’s chemical complexity. Quantitatively analytical methods, such as on-line coupled with high performance liquid chromatography-gas chromatography-flame ionization detector (HPLC-GC-FID), off-line solid phase extraction (SPE) combined with GC-FID (SPE-GC-FID) and comprehensive two-dimensional GC (GC×GC) were developed in Europe. This paper mainly reviewed the analytical procedures and quantitative methods of MOH in food with purpose of developing suitable analysis method for survey MOH in commercial food and monitoring food safety in China.