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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
キーワード
Airborne microplastics
Pyrolysis-GC/MS
Multi-nozzle cascade impact sampler
Double-shot method
資料タイプ
学術雑誌論文
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.
掲載誌名
Journal of Analytical and Applied Pyrolysis
ISSN
01652370
1873250X
cat書誌ID
AA00256768
AA11532619
出版者
Elsevier
171
開始ページ
105946
発行日
2023-03-04
備考
論文本文は2025-03-04以降公開予定
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/
EDB ID
出版社版DOI
出版社版URL
言語
eng
著者版フラグ
その他
部局
理工学系
薬学系