固相微萃取-气相色谱法测定食品包装材料中残留有机溶剂
GC Determination of Residual Organic Solvents in Food Packaging Materials with Solid Phase Microextraction
摘 要
提出了一种以固相微萃取与气相色谱-氢火焰联用技术为基础的测定食品包装材料中15种常用有机溶剂(苯类、醇类、酮类、酯类等)的方法.选择聚二甲亚砜作为固相微萃取的萃取相,采用DB-624毛细管色谱柱进行分离.在优化的试验条件下,15种有机残留溶剂在20 min内能很好地分离,15种溶剂的测定下限(10S/N)为0.08~0.69 μg·dm-2.加标回收率为60.0%~115.0%,相对标准偏差(n=5)为2.17%~8.34%.
固相微萃取
残留有机溶剂
食品包装材料
Capillary column-gas chromatography
Solid phase microextraction
Residual organic solvents
Food packaging material
Abstract
Gas chromatography with hydrogen flame ionization detection (FID) was used in the determination of residual amounts of 15 kinds of commonly used organic solvents (including arenes,alcohols,ketones,esters and etc.).Solid phase microextraction (SPME) was used to enrich trace amounts of the residual solvents,and poly dimethyl sulfoxide was used as extraction phase in the SPME.The sample together with trichloromethane as internal standard was equilibriated in the head-space bottle and introduced into the GC instrument for analysis.The DB-624 capillary column was chosen for separation of the organic solvents.Under the optimum conditions,the 15 solvents were separated satisfactorily within 20 min.Values of lower limit of determination (10S/N) found were in the range of 0.08-0.69 μg·dm-2.Tests for recovery were made by standard addition method,the results of recovery obtained were ranged from 60.0% to 115.0%,with values of RSD′s (n=5) in the range of 2.17%-8.34%.
中图分类号 O657.7
所属栏目 工作简报
基金项目 江苏省技术监督局科技项目(KJ083102)
收稿日期 2008/12/29
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备注秦金平(1964-),男,江苏靖江人,副教授,研究方向为高效毛细管色谱柱的研制与应用.
引用该论文: QIN Jin-ping,GAO Jun-wei,XU Chun-xiang,XU Dong-yu. GC Determination of Residual Organic Solvents in Food Packaging Materials with Solid Phase Microextraction[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2010, 46(3): 260～262
秦金平,高俊伟,徐春祥,徐董育. 固相微萃取-气相色谱法测定食品包装材料中残留有机溶剂[J]. 理化检验－化学分册, 2010, 46(3): 260～262
被引情况:
【1】周宇艳,咸洋,程欲晓,马明,冯健, "液体顶空-气相色谱法测定食品接触苯乙烯聚合物中单体及溶剂残留",理化检验－化学分册 48, 257-261(2012)
【2】刘钊,万富,陈红军,刘洋,黄爱萍,李厚,文明, "顶空-气相色谱法测定食品包装用复合塑料膜中有机溶剂残留量",理化检验－化学分册 49, 824-826(2013)
【3】郭莹莹,赵鸿雁,乙小娟,李磊,王玥,曹文忠, "顶空固相微萃取-气相色谱-质谱法测定食用植物油中挥发性有机物",理化检验－化学分册 47, 550-554(2011)
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参考文献
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【2】黄大川.食品包装材料对食品安全的影响及预防措施探讨[J].包装与机械,2006(4):188-189．
【3】梁振益,邓广强,罗盛旭,等.毛细管气相色谱法测定塑料食品包装袋中苯,乙酸乙酯的残留量[J].化学分析计量,2004,13(1):40-41．
【4】张承明,徐若飞,孔维松,等.顶空气相色谱法测定卷烟包装材料中的溶剂残留[J].理化检验-化学分册,2007,43(5):397-399．
【5】魏黎明,李菊白,李辰.固相微萃取-气相色谱法测定塑料包装袋中的痕量挥发性有机物[J].分析测试技术与仪器,2003,9(3):178-181．
【6】SCAR E,BEGONA P,MARIA T T.Development of a headspace solid-phase microextraction-gas chromatography-mass spectrometry method for the identification of odour-causing volatile compounds in packaging materials[J].Journal of Chromatography A,2002,963:381-392．
【7】秦金平,高俊伟,徐春祥.顶空法研究塑料薄膜对有机溶剂的吸附性能[J].包装工程,2008,29(7):6-8．
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