吴思亮,李丹,谭智毅,吴学峰,李函珂,苏启枝,钟怀宁,郑建国.不同地区rPET样品中半挥发性有机物的筛查识别及差异分析[J].包装工程,2023,44(19):1-8.
WU Si-liang,LI Dan,TAN Zhi-yi,WU Xue-feng,LI Han-ke,SU Qi-zhi,ZHONG Huai-ning,ZHENG Jian-guo.Quantitative Identification and Difference Analysis of Semi-volatile Organic Compounds in rPET Samples from Different Regions[J].Packaging Engineering,2023,44(19):1-8. |
| 不同地区rPET样品中半挥发性有机物的筛查识别及差异分析 |
| Quantitative Identification and Difference Analysis of Semi-volatile Organic Compounds in rPET Samples from Different Regions |
| 投稿时间：2023-08-23 |
| DOI：10.19554/j.cnki.1001-3563.2023.19.001 |
| 中文关键词: 回收聚对苯二甲酸乙二醇酯 半挥发性有机物质 全二维气相色谱-飞行时间质谱 正交偏最小二乘法判别分析 溯源分析 |
| 英文关键词: recycled polyethylene terephthalate semi-volatile organic compounds comprehensive two-dimensional gas chromatograph-tandem quadrupole-time-of-flight mass spectrometry orthogonal partial least squares discriminant analysis traceability analysis |
| 基金项目:国家重点研发计划项目(2022YFF0607202);国家自然科学基金青年基金项目(42207550) |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 探究回收聚对苯二甲酸乙二醇酯(Recycled Polyethylene Terephthalate, rPET)的半挥发性污染物分布和地域差异性。方法 本文利用全二维气相色谱-四极杆飞行时间高分辨质谱(GC×GC-QTOF-MS)非靶向筛查不同区域rPET中的半挥发性有机物质(SVOC)，结合正交偏最小二乘法判别分析(OPLS-DA)探索区域间的差异、关键差异物质和影响因素。结果 北方地区和广东地区的rPET分别检出260和90种SVOCs;1,1'-[1,2-乙二酰双(氧基)]双苯和壬醛二甲基缩醛均是检出频率最高的物质;OPLS-DA结果证明广东地区和北方地区的rPET之间存在显著差异( 为0.98， 为0.932)。关键差异物质主要包括邻苯二甲酸二丁酯、十一烷和对苯二甲酸二乙二醇酯。结论 添加剂、其他废塑料的降解产物以及香精香料残留等因素是导致rPET区域差异的主要原因，不同区域间rPET中的半挥发性污染物存在显著差异，因此可以通过半挥发性有机物质结合化学计量学方法对rPET的来源进行溯源分析。 |
| 英文摘要: |
| The work aims to investigate the distribution and regional difference of the semi-volatile contaminants of recycled PET (rPET). Comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC-QTOF-MS) was used to tentatively identify the semi-volatile organic compounds (SVOCs) from different regions, after which OPLS-DA was performed to investigate the regional difference, key different compounds and their affecting factors. A total of 90 and 260 semi-volatile organic compounds were tentatively identified in rPET from Guangdong region and north region, respectively. In the meantime, 1,1'-[1,2-oxalylbis(oxy)]bisphenyl and nonanal dimethyl acetal were the most frequently detected semi-volatile organic compounds. Furthermore, OPLS-DA revealed that and accounted for 0.98 and 0.932, proving that significant differences were observed in the semi-volatile organic compounds of rPET from Guangdong region and north region. Herein, dibutyl phthalate, undecane, 2-hydroxyethyl methyl terephthalate were the key different compounds. The regional difference of rPET is attributed to the additives, degradation of other plastics, and residuals of fragrances. The semi-volatile organic compounds in rPET differ significantly between regions and regional traceability of rPET can be achieved by combining semi-volatile organic compounds with chemometrics. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501716号