中国塑料2025，Vol.39Issue(1)：80-84,5.DOI:10.19491/j.issn.1001-9278.2025.01.013
气相色谱同时测定饮用水瓶中IPA、EG、DEG含量的方法研究
Study on simultaneous determination of IPA,EG,and DEG contents in drinking water bottles by gas chromatography
摘要
Abstract
In this study,a gas chromatographic method was established for the determination of the contents of terephthal-ic acid(IPA),ethylene glycol(EG)and diethylene glycol(DEG)in polyethylene terephthalate(PET)bottle slices.The optimized and validated method was employed to test the contents of IPA,EG,and DEG in drinking water bottles after.The results indicated that the DEG contents in 16 types of drinking water bottles from 11 different brands was in the range from 1.15%to 1.44%with a mean of 1.30%and a RSD of 7.5%.The contents of EG are distributed be-tween 30.28%and 32.67%along with a mean of 32.0%and a RSD of 2.0%.The proportion of DEG to EG means was around 4%.The content of IPA showed a relatively large difference ranging from 0.68%to 2.3%along with a common value of 2.03%±0.35%.关键词
气相色谱仪/间苯二甲酸/乙二醇/二甘醇/饮用水瓶Key words
gas chromatography/terephthalic acid/ethylene glycol/diethylene glycol/drinking water bottles分类
化学工程引用本文复制引用
叶淋泉,钱焘焘,李融冰,曾乐..气相色谱同时测定饮用水瓶中IPA、EG、DEG含量的方法研究[J].中国塑料,2025,39(1):80-84,5.基金项目
华材科技中心基础和创新研究项目(202319) （202319）
