摘要
基于气相色谱-质谱联用(GC-MS),比较顶空-固相微萃取-气相色谱-质谱联用(HS-SPME-GC-MS)与顶空-气相色谱-质谱联用(HS-GC-MS)对纸质印刷包装材料挥发性物质的检测分析效果,并优化HS-SPME-GC-MS的萃取头、平衡温度、萃取时间条件,以28种纸质印刷包装材料为研究对象,测定其挥发性物质,基于NIST17谱库对其中的挥发性成分进行定性分析,对比筛选和识别其中的挥发性潜在风险成分.选用HS-SPME-GC-MS方法用于纸质印刷包装材料的分析,优化了萃取头、平衡温度、萃取时间条件,一共检出 231种挥发性化合物,其中22种挥发性潜在风险成分邻苯二甲酸二丙烯酯、二乙二醇乙醚、2-甲基萘、1-癸烯联苯、1-甲基萘、醋酸-2-乙基己酯、4-甲氧基苯酚等具有潜在危害性.纸质印刷包装材料经过繁琐复杂的工艺后,通过顶空-固相微萃取-气相色谱-质谱联用法可以识别出残留着少量对人体有潜在危害的挥发性风险成分.
Abstract
Based on gas chromatography-mass spectrometry(GC-MS),the detection and analysis effects of headspace solid-phase microextrac-tion gas chromatography-mass spectrometry(HS-SPME-GC-MS)and headspace gas chromatography-mass spectrometry(HS-GC-MS)on vol-atile substances in paper printing packaging materials were compared.The extraction head,equilibrium temperature,and extraction time con-ditions of HS-SPME-GC-MS were optimized.Fourteen small box packaging materials and fourteen strip box packaging materials were used as research objects to determine their volatile substances.Qualitative analysis of volatile components was conducted based on the NIST17 spec-tral library,and volatile risk components were compared,screened,and identified.The HS-SPME-GC-MS method was selected for the analysis of paper printing packaging materials,and the extraction head,equilibrium temperature,and extraction time conditions were optimized.A total of 231 volatile compounds were detected,including 22 volatile risk components,including 4 controlled compounds such as biphenyl,2-methyl-naphthalene,1-decene,1,2,4,5-tetramethylbenzene,and 18 toxic compounds such as dipropenyl phthalate,undecane,1-methylnaphthalene,2-ethylhexyl acetate,and 4-methoxyphenol.After undergoing tedious and complex processes,packaging materials can be identified by head-space solid-phase microextraction gas chromatography-mass spectrometry to contain small amounts of volatile risk components that are harmful to human health.
维普
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