Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/174987
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | MALDI-TOF MS Imaging evidences spatial differences in the degradation of solid polycaprolactone diol in water under aerobic and denitrifying conditions |
Autor: | Rivas, Daniel CSIC; Ginebreda Martí, Antoni CSIC ORCID; Pérez Solsona, Sandra CSIC ORCID ; Quero, Carmen CSIC ORCID ; Barceló, Damià CSIC ORCID | Palabras clave: | Degradation Denitrifying Aerobic Polymer Imaging MALDI |
Fecha de publicación: | 1-oct-2016 | Editor: | Elsevier | Citación: | Science of the Total Environment 566-567: 27-33 (2016) | Resumen: | Degradation of solid polymers in the aquatic environment encompasses a variety of biotic and abiotic processes giving rise to heterogeneous patterns across the surface of the material, which cannot be investigated using conventional Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) that only renders an "average" picture of the sample. In that context, MALDI-TOF MS Imaging (MALDI MSI) provides a rapid and efficient tool to study 2D spatial changes occurred in the chemical composition of the polymer surface.Commercial polycaprolactone diol (average molecular weight of 1250 Da) was selected as test material because it had been previously known to be amenable to biological degradation. The test oligomer probe was incubated under aerobic and denitrifying conditions using synthetic water and denitrifying mixed liquor obtained from a wastewater treatment plant respectively. After ca. seven days of exposure the mass spectra obtained by MALDI MSI showed the occurrence of chemical modifications in the sample surface. Observed heterogeneity across the probe's surface indicated significant degradation and suggested the contribution of biotic processes. The results were investigated using different image processing tools. Major changes on the oligomer surface were observed when exposed to denitrifying conditions. © 2016. | Versión del editor: | https://doi.org/10.1016/j.scitotenv.2016.05.090 | URI: | http://hdl.handle.net/10261/174987 | DOI: | 10.1016/j.scitotenv.2016.05.090 |
Aparece en las colecciones: | (IDAEA) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
MALDI-TOF MS Imaging evidences spatial differences in the degradation.pdf | 1,37 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
42
checked on 16-abr-2024
WEB OF SCIENCETM
Citations
37
checked on 28-feb-2024
Page view(s)
277
checked on 23-abr-2024
Download(s)
333
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.