摘要
目的为建立有效的邻苯二甲酸酯类增塑剂使用规范和监管制度,建立衰减全反射(ATR)-红外光谱法(FTIR)测定聚氯乙烯(PVC)食品包装材料中邻苯二甲酸酯类增塑剂含量的检测方法。方法以聚氯乙烯食品包装材料为研究对象,利用ATR-FTIR法直接测定。结果邻苯二甲酸酯质量分数为0.5%~35%的PVC,具有1610~1570 cm^(-1)和750~720 cm^(-1)共计2处红外特征峰,且相关系数达到0.9994,线性关系良好;该法测定的精密度相对标准偏差均小于5.0%,准确度相对偏差绝对值均在10%以内。结论该方法简便、快速、环保,能够满足聚氯乙烯食品包装材料中快速检测邻苯二甲酸酯类增塑剂的要求。
The work aims to establish an effective phthalate plasticizer usage specification and regulatory system, and the method used to detect the content of phthalate plasticizer in polyvinyl chloride（PVC） food packaging materials by attenuated total reflectance（ATR）-infrared spectroscopy（FTIR）. Taking PVC food packaging material as the research object, phthalate plasticizers were determined directly by ATR-FTIR method. PVC with phthalate mass fraction in the range of 0.5% to 35% had two infrared characteristic peaks at 1610 to 1570 cm^-1 and 750 to 720 cm^-1; the correlation coefficient was 0.9994, and the linear relationship was good; the relative standard deviations of precision measured in such method were all less than 5.0%; and the absolute relative deviations of accuracy were all within 10%. The method is simple, rapid and environmentally friendly, and can meet the requirements for rapid detection of phthalate plasticizers in PVC food packaging materials.
作者
梁煦
张娟
武茂聪
LIANG Xu;ZHANG Juan;WU Mao-cong(Huangdao Entry-exit Inspection and Quarantine Bureau, Qingdao 266500, Chin)
出处
《包装工程》
CAS
北大核心
2018年第7期112-116,共5页
Packaging Engineering
关键词
聚氯乙烯
食品包装材料
衰减全反射
红外光谱法
polyvinyl chloride
food packaging materials
attenuated total reflection
infrared spectroscopy
