Publikation:
Microplastic analysis using chemical extraction followed by LC-UV analysis: a straightforward approach to determine PET content in environmental samples

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dc.contributor.authorMüller, Axel
dc.contributor.authorGoedecke, Caroline
dc.contributor.authorEisentraut, Paul
dc.contributor.authorBraun, Ulrike
dc.date.accessioned2024-06-16T12:49:34Z
dc.date.available2024-06-16T12:49:34Z
dc.date.issued2020
dc.description.abstractBackground The ubiquitous occurrence of microplastic particles in marine and aquatic ecosystems was intensively investigated in the past decade. However, we know less about the presence, fate, and input paths of microplastic in terrestrial ecosystems. A possible entry path for microplastic into terrestrial ecosystems is the agricultural application of sewage sludge and solid bio-waste as fertilizers. Microplastic contained in sewage sludge also includes polyethylene terephthalate (PET), which could originate as fiber from textile products or as a fragment from packaging products (foils, bottles, etc.). Information about microplastic content in such environmental samples is limited yet, as most of the used analytical methods are very time-consuming, regarding sample preparation and detection, require sophisticated analytical tools and eventually need high user knowledge. Results Here, we present a simple, specific tool for the analysis of PET microplastic particles based on alkaline extraction of PET from the environmental matrix and subsequent determination of the monomers, terephthalic acid, using liquid chromatography with UV detection (LC-UV). The applicability of the method is shown for different types of PET in several soil-related, terrestrial environmental samples, e.g., soil, sediment, compost, fermentation residues, but also sewage sludge, suspended particles from urban water management systems, and indoor dust. Recoveries for model samples are between 94.5 and 107.1%. Limit of determination and limit of quantification are absolute masses of 0.031 and 0.121 mg PET, respectively. In order to verify the measured mass contents of the environmental samples, a method comparison with thermal extraction-desorption-gas chromatography-mass spectrometry (TED-GC/MS) was conducted. Both methods deliver similar results and corroborated each other. PET mass contents in environmental samples range from values below LOQ in agriculture soil up to 57,000 mg kg-1 in dust samples. Conclusions We demonstrate the potential of an integral method based on chemical extraction for the determination of PET mass contents in solid environmental samples. The method was successfully applied to various matrices and may serve as an analytical tool for further investigations of PET-based microplastic in terrestrial ecosystems. © The Author(s) 2020en
dc.format.extent1 Onlineresource (10 pages)
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-82
dc.identifier.urihttps://openumwelt.de/handle/123456789/1889
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectMikroplastikpartikel
dc.subjectHaustier
dc.subjectAnalyse
dc.subjectBoden
dc.subjectKlärschlamm
dc.titleMicroplastic analysis using chemical extraction followed by LC-UV analysis: a straightforward approach to determine PET content in environmental samples
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleEnvironmental Sciences Europe
local.bibliographicCitation.originalDOI10.1186/s12302-020-00358-x
local.bibliographicCitation.volume32 (2020)
local.collectionAufsätze
local.contributor.authorId00248305
local.contributor.authorId02176195
local.contributor.authorId02176034
local.contributor.authorId00270121
local.identifier.catalogId02498723
local.ingest.leader06931naa a2200000uu 4500
local.jointTitleMICROPLASTIC ANALYSIS USING CHEMICAL EXTRACTION FOLLOWED BY LCUV ANALYSIS A STRAIGHTFORWARD APPROACH TO DETERMINE PET CONTENT IN ENVIRONMENTAL SAMPLES
local.reviewtrue
local.sourcecatalog
local.source.urihttp://creativecommons.org/licenses/by/4.0/deed.de
local.staffPublicationtrue
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