novel tools for the identification and characterization of aged microplastics with developed biofilm
Pavel Pořízka (Avtor), Lukas Brunnbauer (Avtor), Michaela Porkert (Avtor), Ula Rozman (Avtor), Gregor Marolt (Avtor), Daniel Holub (Avtor), Martin Kizovský (Avtor), Markéta Benešová (Avtor), Ota Samek (Avtor), Andreas Limbeck (Avtor), Jozef Kaiser (Avtor), Gabriela Kalčíková (Avtor)

Povzetek

Microplastics found in the environment are often covered with a biofilm, which makes their analysis difficult. Therefore, the biofilm is usually removed before analysis, which may affect the microplastic particles or lead to their loss during the procedure. In this work, we used laser-based analytical techniques and evaluated their performance in detecting, characterizing, and classifying pristine and aged microplastics with a developed biofilm. Five types of microplastics from different polymers were selected (polyamide, polyethylene, polyethylene terephthalate, polypropylene, and polyvinyl chloride) and aged under controlled conditions in freshwater and wastewater. The development of biofilm and the changes in the properties of the microplastic were evaluated. The pristine and aged microplastics were characterized by standard methods (e.g., optical and scanning electron microscopy, and Raman spectroscopy), and then laser-induced breakdown spectroscopy (LIBS) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) were used. The results show that LIBS could identify different types of plastics regardless of the ageing and major biotic elements of the biofilm layer. LA-ICP-MS showed a high sensitivity to metals, which can be used as markers for various plastics. In addition, LA-ICP-MS can be employed in studies to monitor the adsorption and desorption (leaching) of metals during the ageing of microplastics. The use of these laser-based analytical techniques was found to be beneficial in the study of environmentally relevant microplastics.

Ključne besede

mikroplastika;identifikacija;karakterizacija;staranje;microplastics;identification;characterization;aging;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK: 504.5:678:544.53
COBISS: 132028419 Povezava se bo odprla v novem oknu
ISSN: 0045-6535
Št. ogledov: 80
Št. prenosov: 29
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: mikroplastika;identifikacija;karakterizacija;staranje;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-9
Zvezek: ǂVol. ǂ313
Čas izdaje: Feb. 2023
DOI: 10.1016/j.chemosphere.2022.137373
ID: 17458824