Laser-induced breakdown spectroscopy for direct analysis of pristine and environmentally aged microplastics : a PCA-based approach

Modlitbová, Pavlína (avtor), Kočenda, Dominik (avtor), Holub, Daniel (avtor), Starin, Mark (avtor), Novak, Janja (avtor), Putar, Ula (avtor), Kalčíková, Gabriela (avtor), Brunnbauer, Lukas (avtor), Limbeck, Andreas (avtor), Pořízka, Pavel (avtor), Kaiser, Jozef (avtor)

This study investigates the potential of Laser-Induced Breakdown Spectroscopy (LIBS) combined with Principal Component Analysis (PCA) for the differentiation and characterization of microplastics (MPs) in various stages of environmental aging. Three commonly encountered polymer types, polystyrene, polyethylene, and polyvinyl chloride, in the form of fragments were subjected to controlled aging under abiotic and biotic conditions for one and six weeks in the absence and presence of selected heavy metal ions (cadmium, chromium, and lead) to simulate environmentally relevant contamination. The LIBS-PCA approach effectively distinguishes between pristine and aged MPs and among different polymer types and aging scenarios. Biotic aging led to pronounced elemental changes which were further supported by parallel chlorophyll a measurements assessing the biofilm development. These findings highlight the applicability of LIBS-PCA as a rapid and informative tool for monitoring microplastic transformation in complex environmental settings.

• Jezik: Angleški jezik
• Ključne besede: microplastics, biotic aging, abiotic aging, laser-induced breakdown spectroscopy
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FKKT - Fakulteta za kemijo in kemijsko tehnologijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2026
• Št. strani: 10 str.
• Številčenje: Vol. 235, art. 107353
• PID: 20.500.12556/RUL-175624
• UDK: 504.5:678:543.42
• ISSN pri članku: 0584-8547
• DOI: 10.1016/j.sab.2025.107353
• COBISS.SI-ID: 255659779
• Datum objave v RUL: 06.11.2025

Gradivo je del revije

• Naslov: Spectrochimica acta : Atomic spectroscopy
• Skrajšan naslov: Spectrochim. acta, Part B: At. spectrosc.
• Založnik: Pergamon Press, Elsevier Science
• ISSN: 0584-8547
• COBISS.SI-ID: 26433536

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: mikroplastika, biotsko staranje, abiotsko staranje, lasersko inducirana prebojna spektroskopija