Pyr-GC/MS analysis of microplastics extracted from the stomach content of benthivore fish from the Texas Gulf Coast

MARINE POLLUTION BULLETIN

卷:137

Article

Peters, Colleen A.¹  Hendrickson, Erik²  Minor, Elizabeth C.²  Schreiner, Kathryn²  Halbur, Julie²  Bratton, Susan P.¹ 

[1] Baylor Univ, Dept Environm Sci, One Bear Pl 97266, Waco, TX 76798 USA

[2] Univ Minnesota, Duluth, MN 55812 USA

关键词: Microplastic;    Polymer;    Pyr-GC/MS;    Fish;    Ingestion;    Texas;   

DOI  :  10.1016/j.marpolbul.2018.09.049

来源: Elsevier

【 摘 要 】

Fish ingestion of microplastic has been widely documented throughout freshwater, marine, and estuarine species. While numerous studies have quantified and characterized microplastic particles, analytical methods for polymer identification are limited. This study investigated the applicability of pyr-GC/MS for polymer identification of microplastics extracted from the stomach content of marine fish from the Texas Gulf Coast. A total of 43 microplastic particles were analyzed, inclusive of 30 fibers, 3 fragments, and 10 spheres. Polyvinyl chloride (PVC) and polyethylene terephthalate (PET) were the most commonly identified polymers (44.1%), followed by nylon (9.3%), silicone (2.3%), and epoxy resin (2.3%). Approximately 42% of samples could not be classified into a specific polymer class, due to a limited formation of pyrolytic products, low product abundance, or a lack of comparative standards. Diethyl phthalate, a known plasticizer, was found in 16.3% of the total sample, including PVC (14.3%), silicone (14.3%), nylon (14.3%), and sample unknowns (57.2%).

【 授权许可】

Free