ID | 118027 |
著者 |
Takeda, Hiroto
Tokushima University
Kinoshita, Kyosuke
Tokushima University
Teramae, Norio
Tohoku University|Frontier Laboratories
Pipkin, William
Tohoku University
Matsui, Kazuko
Frontier Laboratories
Watanabe, Atsushi
Frontier Laboratories|Tohoku University
Watanabe, Chuichi
Frontier Laboratories
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キーワード | Airborne microplastics
Pyrolysis-GC/MS
Multi-nozzle cascade impact sampler
Double-shot method
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資料タイプ |
学術雑誌論文
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抄録 | This paper reports the direct analysis of polymer components in the airborne particulates collected on quartz filters by pyrolysis (Py)-GC/MS. The airborne microplastics (AMPs) were collected with three classification stages depending on different aerodynamic diameters using a multi-nozzle cascade impact (MCI) sampler. The quartz filter holding AMPs was punched directly into several pieces without pretreatment procedures. Three pieces were introduced into a sample cup, and Py-GC/MS measurements were done to analyze AMPs. Evolved gas analysis (EGA) of AMPs showed the volatilization of phthalates, the generation of sulfur dioxide and nitrogen oxide, and the thermal decomposition of polymer components as the heating temperature increased. In thermal desorption (TD)-GC/MS prior to Py-GC/MS, polycyclic aromatic hydrocarbons were detected in addition to phthalates and some aliphatic carboxylic acids. The following Py-GC/MS results indicated the presence of polyethylene, polypropylene (PP), polystyrene (PS), styrene-butadiene rubber (SBR), and natural rubber in AMPs. Among these polymers, PS, PP, and SBR were quantified using the indicator ions of their characteristic pyrolysis products. The analytical results showed that PS and PP seem to accumulate in the smaller aerodynamic diameter stage, while SBR appears to collect in the larger one. The analytical method using Py-GC/MS described herein is a powerful one that requires no pretreatment of the AMP samples.
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掲載誌名 |
Journal of Analytical and Applied Pyrolysis
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ISSN | 01652370
1873250X
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cat書誌ID | AA00256768
AA11532619
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出版者 | Elsevier
|
巻 | 171
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開始ページ | 105946
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発行日 | 2023-03-04
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備考 | 論文本文は2025-03-04以降公開予定
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権利情報 | © 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
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EDB ID | |
出版社版DOI | |
出版社版URL | |
言語 |
eng
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著者版フラグ |
その他
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部局 |
理工学系
薬学系
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