石油化工2024，Vol.53Issue(8)：1137-1143,7.DOI:10.3969/j.issn.1000-8144.2024.08.010
基于TD-GC-O-MS及感官评价分析医用级聚氯乙烯树脂气味物质
Analysis of odorants in medical polyvinyl chloride resin based on TD-GC-O-MS and sensory evaluation
摘要
Abstract
The thermal desorption-gas chromatography-olfactometry-mass spectrometry(TD-GC-O-MS)technique and sensory evaluation were utilized to qualitatively and quantitatively analyze the odorants in the volatile organic compounds(VOCs)of medical polyvinyl chloride(PVC)resin.This paper also performed a preliminary analysis through the headspace desorption-gas chromatography-mass spectrometry technique to optimize heating temperature and time for the best release of VOCs.Besides,the paper selected a polarity column using the highly sensitive TD-GC-O-MS to improve the separation and detection of VOCs,thus realizing the qualitative and quantitative detection of low-concentration odorants.In this way,alkane compounds,isooctanol,butyl acrylate,acetic acid,styrene,and nonanal were identified as the main odor sources of PVC resin.The sources of odorants were traced back to provide guidance for the improvement of the low-odor PVC production process.Through sensory evaluation,the odor of PVC resin was significantly reduced after process optimization.关键词
医用级聚氯乙烯树脂/热脱附-气相色谱-嗅闻-质谱/挥发性有机物/定性定量分析/气味改善Key words
medical polyvinyl chloride resin/thermal desorption-gas chromatography-olfactometry-mass spectrometry/volatile organic compounds/qualitative and quantitative analysis/odor improvement分类
化学工程引用本文复制引用
邓莹楠,唐毓婧,张桦,孙姝琦,康鹏,李可..基于TD-GC-O-MS及感官评价分析医用级聚氯乙烯树脂气味物质[J].石油化工,2024,53(8):1137-1143,7.基金项目
中国石化科技部项目(222244). （222244）
