色谱2012，Vol.30Issue(1)：21-26,6.DOI:10.3724/SP.J.1123.2011.09011
微波辅助萃取-气相色谱-质谱法测定丙烯酸树脂中9种残余单体
Determination of 9 residual acrylic monomers in acrylic resins by gas chromatography-mass spectrometry coupled with microwave assisted extraction
摘要
Abstract
A reliable gas chromatography-mass spectrometry (GC-MS) method was developed for the determination of 9 residual acrylic monomers (methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, n-butyl acrylate, butyl methacrylate, styrene, acrylic acid and methacrylic acid) in acrylic resins. Solid resin was precipitated with methanol after microwave assisted extraction with ethyl acetate for 30 min, and liquid resin was diluted with methanol directly. The nine acrylic monomers got a good separation within 20 min on a DB-WAX column. The limits of quantification (LOQs, S/N = 10) of the method were in the range of 1 -10 mg/kg for liquid resin and 3-50 mg/kg for solid resin. The calibration curves were linear within 1 - 500 mg/L range with correlation coefficients above 0. 995. The recoveries ranged from 84.4% to 108.6% at five spiked levels. The sensitivity, recovery and selectivity of the method can fully meet the requirements of practical work.关键词
微波辅助萃取/气相色谱-质谱/单体/丙烯酸树脂Key words
microwave assisted extraction/ gas chromatography-mass spectrometry (GC-MS)/ monomer/ acrylic resin分类
化学化工引用本文复制引用
赖莺,林睿,蔡鹭欣,葛秀秀,黄长春..微波辅助萃取-气相色谱-质谱法测定丙烯酸树脂中9种残余单体[J].色谱,2012,30(1):21-26,6.基金项目
国家质量监督检验总局科研项目(No.2011IK048)和检验检疫行业标准制修订项目(No.2009B659). （No.2011IK048）
