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Detection Methods
Environmental Sources
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Influence of particle characteristics, heating temperature and time on the pyrolysis product distributions of polystyrene micro- and nano-plastics
Journal of Chromatography A2022
25 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 40
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Qingcun Li,
Xueying Sheng,
Qingcun Li,
Qingcun Li,
Qingcun Li,
Qingcun Li,
Qingcun Li,
Qingcun Li,
Ronggang Zheng,
Qingcun Li,
Xueying Sheng,
Sujuan Yu,
Sujuan Yu,
Qingcun Li,
Qingcun Li,
Qingcun Li,
Qingcun Li,
Qingcun Li,
Sujuan Yu,
Qingcun Li,
Sujuan Yu,
Xueying Sheng,
Qingcun Li,
Qingcun Li,
Jingfu Liu
Xueying Sheng,
Xueying Sheng,
Qingsheng Bai,
Qingsheng Bai,
Qingsheng Bai,
Qingcun Li,
Xueying Sheng,
Peng Li,
Peng Li,
Qingsheng Bai,
Qingsheng Bai,
Qingsheng Bai,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Qingcun Li,
Sujuan Yu,
Sujuan Yu,
Qingcun Li,
Qingcun Li,
Xueying Sheng,
Ronggang Zheng,
Xueying Sheng,
Ronggang Zheng,
Ronggang Zheng,
Peng Li,
Qingcun Li,
Qingcun Li,
Xueying Sheng,
Qingcun Li,
Xueying Sheng,
Sujuan Yu,
Jingfu Liu
Jingfu Liu
Qingcun Li,
Qingcun Li,
Sujuan Yu,
Sujuan Yu,
Qingcun Li,
Peng Li,
Peng Li,
Peng Li,
Peng Li,
Sujuan Yu,
Qingcun Li,
Qingcun Li,
Qingcun Li,
Peng Li,
Ronggang Zheng,
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Xueying Sheng,
Sujuan Yu,
Sujuan Yu,
Xueying Sheng,
Qingcun Li,
Qingcun Li,
Sujuan Yu,
Jingfu Liu
Qingcun Li,
Jingfu Liu
Qingcun Li,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Jingfu Liu
Jingfu Liu
Jingfu Liu
Sujuan Yu,
Sujuan Yu,
Jingfu Liu
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Sujuan Yu,
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Sujuan Yu,
Sujuan Yu,
Jingfu Liu
Sujuan Yu,
Sujuan Yu,
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Peng Li,
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Jingfu Liu
Summary
Researchers systematically evaluated how pyrolysis temperature, heating time, particle size, and mass influence the decomposition products of polystyrene micro- and nanoplastics during pyrolysis-GC/MS analysis, providing critical guidance for improving the accuracy of environmental microplastic detection methods.
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 plastics 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 pyrolysis 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 ℃ and pyrolysis 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 contribute to the accurate analysis of PS MNPs in the environment.