Influence of particle characteristics, heating temperature and time on the pyrolysis product distributions of polystyrene micro- and nano-plastics
文献类型：期刊论文
| 作者 | Li, Qingcun ; Bai, Qingsheng; Sheng, Xueying; Li, Peng; Zheng, Ronggang; Yu, Sujuan; Liu, Jingfu
|
| 刊名 | JOURNAL OF CHROMATOGRAPHY A
 |
| 出版日期 | 2022 |
| 卷号 | 1682页码:463503-1-7 |
| 关键词 | Pyrolysis-gas chromatography-mass spectrometry Temperature Time Size Mass |
| ISSN号 | 0021-9673 |
| 英文摘要 | Pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) has been widely used for the detection of micro-and nanoplastics (MNPs) in the environment. However, there is a lack of thorough investigation on the effects of pyrolysis temperature and time, as well as the particle source, size and mass of MNPs on the pyrolysis efficiency and pyrolysis product distribution of MNPs. Herein, taking the common plas-tics polystyrene (PS) as a model, we systematically evaluated the influences of the above factors on the pyrolysis of PS MNPs. Results showed that pyrolysis temperature and time significantly affect the py-rolysis efficiency. By measuring the relative response values of the indicator compound styrene trimers to styrene monomer, the optimum condition was determined as the temperature of 510 C and pyrol-ysis time longer than 18 s. Meanwhile, the mass of MNPs also affected the distribution of PS pyrolysis products. The proportions of styrene dimers and trimers increased slightly with PS MNP mass, while the source, particle size of MNPs have little effect on the pyrolysis product distribution. This work proposed a suitable pyrolysis temperature and time for the determination of PS by Py-GC/MS, which would con-tribute to the accurate analysis of PS MNPs in the environment.(c) 2022 Elsevier B.V. All rights reserved. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/48494]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.China University of Petroleum 2.Chinese Academy of Sciences 3.University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Li, Qingcun,Bai, Qingsheng,Sheng, Xueying,et al. Influence of particle characteristics, heating temperature and time on the pyrolysis product distributions of polystyrene micro- and nano-plastics[J]. JOURNAL OF CHROMATOGRAPHY A,2022,1682:463503-1-7. |
| APA | Li, Qingcun.,Bai, Qingsheng.,Sheng, Xueying.,Li, Peng.,Zheng, Ronggang.,...&Liu, Jingfu.(2022).Influence of particle characteristics, heating temperature and time on the pyrolysis product distributions of polystyrene micro- and nano-plastics.JOURNAL OF CHROMATOGRAPHY A,1682,463503-1-7. |
| MLA | Li, Qingcun,et al."Influence of particle characteristics, heating temperature and time on the pyrolysis product distributions of polystyrene micro- and nano-plastics".JOURNAL OF CHROMATOGRAPHY A 1682(2022):463503-1-7. |
入库方式： OAI收割
来源：生态环境研究中心
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