现代食品科技2012，Vol.28Issue(5)：567-569,578,4.
固相萃取-选择离子气质联用法测定液态调味料中的4-甲基咪唑
Determination of 4-Methylimidazole in Liquid Seasoning by Solid Phase Extraction Combined with Gas Chromatography/Selected Ion Mass Spectrometry
摘要
Abstract
A simple and sensitive method was developed for determination of 4-methylimidazole in liquid seasoning samples by solid phase extraction (SPE) with selected ion mass-gas chromatography mass spectrometry (SIM-GCMS). In this work, effects of solution pH, type and volume of elution solvents were investigated to optimize extraction conditions. Under the optimized SPE conditions, the relative standard deviation (RSD, n=5) for the samples was 7.5%. The coefficient of determination for calibration curve was 0.99985. The method detection limit was 7.27 μg/kg. The method was applied to real samples and the recovery of 80.3-86.2 % was obtained.关键词
固相萃取/液态调味料/4-甲基咪唑/选择离子气质联用Key words
solid phase extraction, liquid seasoning, 4-me1hylimidazoIe, selected ion mass-gas chromatography mass spectrometry引用本文复制引用
熊珺,陈美玲,赖毅东..固相萃取-选择离子气质联用法测定液态调味料中的4-甲基咪唑[J].现代食品科技,2012,28(5):567-569,578,4.基金项目
广东省质量技术监督局科技项目(2009ZZ09) （2009ZZ09）
