摘要
建立了大米中16种多环芳烃残留的气相色谱-质谱（GC-MS）检测方法。样品中的多环芳烃经乙腈提取,改进基质固相分散技术（QuEChERS）净化后,进行GC-MS测定,同位素内标法定量。方法的样品加标回收率和精密度分别为69.1%~96.9%和8.2%~12.7%。多环芳烃的方法检测限为0.6~3.2μg/kg。
A new analytical method was developed for the determination of 16 polycyclic-aromatichydrocarbons（PAHs） in rice samples by gas chromatography-mass spectrometry（GC-MS）. The target analytes in samples were extracted with the solution of acetonitrile（ACN）, purified using dispersive solid phase extraction, detected by GC-MS, and then quantified by isotope internal standard method. The method recovery percentages and relative standard deviations（RSD） were 69.1%~96.9% and 8.2%~12.7%. The method detection limit（MDL） was 0.6~3.2 μg/kg.
出处
《食品科技》
CAS
北大核心
2014年第1期327-330,共4页
Food Science and Technology
基金
出入境检验检疫行业标准制修订项目(2009B141)
关键词
气相色谱-质谱
同位素内标
基质固相分散
多环芳烃
gas chromatography-mass spectrometry（GC-MS）
isotope internal standard
dispersive solid phase extraction
polycyclic aromatic hydrocarbons
