气相色谱法同时测定包装用塑料复合膜袋中13种有机溶剂残留量  

Simultaneous determination of 13 kinds of organic solvent residues in plastic laminated films and pouches for packaging by gas chromatography

作　　者：刘宁宁 Liu Ningning(Kangda New Materials(Group)Co.,Ltd.,Shanghai 201419)

机构地区：[1]康达新材料(集团)股份有限公司,上海201419

出　　处：《塑料包装》2024年第1期17-19,16,共4页Plastics Packaging

摘　　要：采用气相色谱法建立一种测定包装用塑料复合膜袋中13种有机溶剂残留量的分析检测方法。方法选用Rtx-5石英毛细管柱(50 m×0.32 mm,0.5μm)和氢火焰离子化检测器FID,13种有机溶剂在15 min内分离良好。该方法在0.03~0.6mg/m^(2)(3-甲基戊烷范围为0.015~0.3mg/m^(2))范围内线性关系良好,13种目标物的相关系数均大于0.998,检出限范围为0.001~0.005 mg/m^(2),7次测定相对标准偏差在1.04%~7.55%,样品加标回收率范围为95.4%~114.2%。测定了6种塑料包装材料中的有机溶剂残留量,方法快速、准确、再现性好,完全能满足塑料复合膜袋中13种溶剂残留量的测定。An analytical method for the determination of 13 kinds of organic solvent residues in plastic laminated films and pouches for packaging by gas chromatography was established.The Rtx-5 capillary column(50 m×0.32 mm,0.5μm)and hydrogen flame ionization detector were selected,13 kinds of organic solvents were separated from each other well within 15 min.The method has the good linearity in the range of 0.03~0.6 mg/m^(2)(3-methylpentane is in the range of 0.015~0.3 mg/m^(2))(r>0.998),the limits of detection are 0.001~0.005 mg/m^(2),RSD(n=7)are in the range of 1.04%~7.55%and the recoveries are 95.4%~110.1%.During the experiments,the organic solvent residues in 6 kinds of plastic packaging materials were analyzed.This is a fast and accurate way with good reproducibility and can fully meet the determining of 13 kinds of organic solvent residues in plastic laminated films and pouches for packaging.

关 键 词：气相色谱 有机溶剂残留 塑料包装材料 

分 类 号：O657.71[理学—分析化学] TQ320.77[理学—化学]