CAJ | 학술논문

采用同位素内标法并结合凝胶净化技术，建立了婴幼儿米粉中多环芳烃残留的气相色谱一质谱（GC-MS）检测方法。样品中的多环芳烃经乙腈提取，凝胶渗透色谱柱去除杂质后，进行GC-MS测定，内标法定量。方法的样品加标回收率和相对标准偏差分别为62.8%～93.7%、8.2%~21.0%。多环芳烃的方法检测限为0.3μg/kg~2.4μg/kg。
채용동위소내표법병결합응효정화기술，건립료영유인미분중다배방경잔류적기상색보일질보（GC-MS）검측방법。양품중적다배방경경을정제취，응효삼투색보주거제잡질후，진행GC-MS측정，내표법정량。방법적양품가표회수솔화상대표준편차분별위62.8%～93.7%、8.2%~21.0%。다배방경적방법검측한위0.3μg/kg~2.4μg/kg。
A new analytical method was developed for the determination of polycyclic-aromatic- hydrocarbons (PAHs)in rice samples by gas chromatography-mass spectrometry(GC-MS)based on isotope internal standard method and gel permeation chromatography purification(GPC).The target analytes in samples were extracted with the solution of acetonitrile(ACN),purified using GPC to eliminate most of the coextracts,detected by GC-MS,and then quantified by internal standard method. The method recovery percentages and relative standard deviations(RSD)were 62.8%~93.7%and 8.2%~21.0%.The method detection limit(MDL)was 0.3μg/kg~2.4μg/kg.