顶空-气相色谱法测定复合膜中25种溶剂的残留量  

Determination of Residual Amounts of 25 Solvents in Composite Membrane by Headspace-Gas Chromatography

作　　者：姜方方 邵卫卫 Jiang Fangfang;Shao Weiwei(Jiangsu Chengxin Inspection Testing and Certification Co.Ltd,Jiangyin Jiangsu 214431)

机构地区：[1]江苏澄信检验检测认证股份有限公司,江苏江阴214431

出　　处：《塑料包装》2024年第6期24-29,共6页Plastics Packaging

摘　　要：目的:本文针对复合膜中的25种溶剂残留量,采用顶空-气相色谱法进行准确、高效的分析。方法:样品通过顶空-气相色谱法进行检测,试验过程中不断优化条件,建立了相应的检测方法,并对其检测方法进行了相关验证。结果:当取样面积为100cm2时,该方法中19种非苯类溶剂在0.1mg/m2-5mg/m2浓度范围内线性关系良好,验证方法检出限为0.05mg/m2,回收率为95.72-109.86%,精密度为0.73-5.52%;6种苯类溶剂在0.05mg/m2-2.5mg/m2浓度范围内线性关系良好,验证方法检出限为0.025mg/m2,回收率为96.84-103.60%,精密度为0.41-2.16%,可以满足标准中对复合膜溶剂残留量的检测的需求。结论:本研究为复合膜的质量控制及生产过程中的溶剂残留监控提供了有效的技术手段,对于保障产品质量和消费者健康具有重要意义。Objective:In this paper,headspace-gas chromatography was used to accurately and efficiently analyze 25 kinds of residual solvents in composite films.Methods:The samples were detected by headspace-gas chromatography.During the test,the conditions were optimized,the corresponding detection method was established,and the relevant verification was carried out.Results:When t he sampling area was 100cm2,the linear relationship of 19 non-benzene solvents in the method was good in the concentration range of 0.1mg/m2-5mg/m2.The detection limit of the method was 0.05mg/m2,the recovery rate was 95.72-109.86%,and the precision was 0.73-5.52%.The linear relationship of the six benzene solvents was good in the concentration range of 0.05mg/m2-2.5mg/m2.The detection limit of the verification method was 0.025mg/m2,the recovery rate was 96.84-103.60%,and the precision was 0.41-2.16%,which could meet the requirements of the standard for the detection of residual solvent in composite films.Conclusion:This study provides an effective technical means for the quality control of composite film and the monitoring of solvent residues in the production process,which is of great significance for the protection of product quality and consumer health.

关 键 词：复合膜 顶空-气相色谱法 溶剂残留量 

分 类 号：O657.71[理学—分析化学] TB383.2[理学—化学]