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Identification and characterisation of individual nanoplastics by scanning transmission X-ray microscopy (STXM)

Foetisch, Alexandra ; Filella, Montserrat ; Watts, Benjamin ; Vinot, Laure-Hélène ; Bigalke, Moritz (2022)
Identification and characterisation of individual nanoplastics by scanning transmission X-ray microscopy (STXM).
In: Journal of Hazardous Materials, 426
doi: 10.1016/j.jhazmat.2021.127804
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Nanoplastics (NP) are of environmental and human health concern. We tested a novel NP extraction method and scanning transmission X-ray spectro-microscopy (STXM) in combination with near-edge X-ray absorption fine-structure spectroscopy (NEXAFS) to image and identify individual NP in environmental and food matrices. We (1) discussed the potential of STXM compared to other methods potentially suitable for NP analysis, (2) applied the method on NP suspensions of eight of the most common polymers, (3) analyzed environmental water and soil samples spiked with NP and (4) characterized NP in tea water infused in plastic teabags and unspiked soil samples. Here we show that STXM has methodological advantages and that polymers give characteristic spectra, which allows NP identification in environmental and food matrices. For soils we deliver a visual and spectroscopic characterization of NP, proving their presence and highlighting their diversity. Thus, STXM, can be used for the detection and characterisation of NP in different types of matrices.

Typ des Eintrags: Artikel
Erschienen: 2022
Autor(en): Foetisch, Alexandra ; Filella, Montserrat ; Watts, Benjamin ; Vinot, Laure-Hélène ; Bigalke, Moritz
Art des Eintrags: Bibliographie
Titel: Identification and characterisation of individual nanoplastics by scanning transmission X-ray microscopy (STXM)
Sprache: Englisch
Publikationsjahr: 2022
Ort: Darmstadt
Verlag: Elsevier
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Hazardous Materials
Jahrgang/Volume einer Zeitschrift: 426
Kollation: 9 Seiten
DOI: 10.1016/j.jhazmat.2021.127804
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Kurzbeschreibung (Abstract):

Nanoplastics (NP) are of environmental and human health concern. We tested a novel NP extraction method and scanning transmission X-ray spectro-microscopy (STXM) in combination with near-edge X-ray absorption fine-structure spectroscopy (NEXAFS) to image and identify individual NP in environmental and food matrices. We (1) discussed the potential of STXM compared to other methods potentially suitable for NP analysis, (2) applied the method on NP suspensions of eight of the most common polymers, (3) analyzed environmental water and soil samples spiked with NP and (4) characterized NP in tea water infused in plastic teabags and unspiked soil samples. Here we show that STXM has methodological advantages and that polymers give characteristic spectra, which allows NP identification in environmental and food matrices. For soils we deliver a visual and spectroscopic characterization of NP, proving their presence and highlighting their diversity. Thus, STXM, can be used for the detection and characterisation of NP in different types of matrices.

Freie Schlagworte: Nanoplastic analysis, Soil pollution, Environmental pollution, Scanning transmission X-ray microscopy
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Bodenmineralogie und Bodenchemie
Hinterlegungsdatum: 02 Aug 2024 12:43
Letzte Änderung: 02 Aug 2024 12:43
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