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dc.contributor.authorAlonso, E.
dc.contributor.authorPeralta Conde, Alvaro
dc.date2023
dc.date.accessioned2023-06-23T10:47:39Z
dc.date.available2023-06-23T10:47:39Z
dc.identifier.citationAlonso, E., & Conde, A. P. (2023). Desorption and ablation regimes in UV-MALDI: the critical fluence. RSC Advances, 13(1), 721-729.es_ES
dc.identifier.issn2046-2069
dc.identifier.urihttps://reunir.unir.net/handle/123456789/14965
dc.description.abstractAlthough MALDI is a widely used technique, there is so far no theoretical description able to reproduce some critical aspects of the experimental results. For example, there is experimental as well as theoretical controversy regarding the minimum laser fluence, i.e., the so-called fluence threshold (FT), required to evaporate a sample. Furthermore, although the different processes involved in ion production have been the focus of many investigations, the fact is that the primary process for ion formation in MALDI is not desorption but ablation. In this work, we present a new phenomenological approach for understanding MALDI results based on a simple, but physically intuitive, idea consisting of limiting the laser-matter interaction process to three layers. This description allows us to consider the different processes that dominate ion formation, i.e., heat dissipation, as well as the different existing regimes. Concretely, we present the results for three different matrices, i.e., DHB, ferulic acid (FA) and α-cyano-4-hydroxycinnamic acid (CHCA), in the limit of low fluence. The simulations we carried out show great qualitative and pseudo-quantitative agreement with the experimental results. Also, based on the simulation results, it is possible to distinguish clearly between the two dominant regimes, i.e., desorption and ablation, and it is possible, therefore, to estimate the critical fluencees_ES
dc.language.isoenges_ES
dc.publisherRSC Advanceses_ES
dc.relation.ispartofseries;vol. 13, nº 1
dc.relation.urihttps://pubs.rsc.org/en/content/articlelanding/2023/RA/D2RA06069H#!divAbstractes_ES
dc.rightsopenAccesses_ES
dc.subjectUV-MALDIes_ES
dc.subjectScopuses_ES
dc.subjectJCRes_ES
dc.titleDesorption and ablation regimes in UV-MALDI: the critical fluencees_ES
dc.typeArticulo Revista Indexadaes_ES
reunir.tag~ARIes_ES
dc.identifier.doihttps://doi.org/10.1039/d2ra06069h


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