• Mi Re-Unir
    Búsqueda Avanzada
    JavaScript is disabled for your browser. Some features of this site may not work without it.
    Ver ítem 
    •   Inicio
    • RESULTADOS DE INVESTIGACIÓN
    • Artículos Científicos WOS y SCOPUS
    • Ver ítem
    •   Inicio
    • RESULTADOS DE INVESTIGACIÓN
    • Artículos Científicos WOS y SCOPUS
    • Ver ítem

    Desorption and ablation regimes in UV-MALDI: the critical fluence

    Autor: 
    Alonso, E.
    ;
    Peralta Conde, Alvaro
    Fecha: 
    2023
    Palabra clave: 
    UV-MALDI; Scopus; JCR
    Revista / editorial: 
    RSC Advances
    Citación: 
    Alonso, E., & Conde, A. P. (2023). Desorption and ablation regimes in UV-MALDI: the critical fluence. RSC Advances, 13(1), 721-729.
    Tipo de Ítem: 
    Articulo Revista Indexada
    URI: 
    https://reunir.unir.net/handle/123456789/14965
    DOI: 
    https://doi.org/10.1039/d2ra06069h
    Dirección web: 
    https://pubs.rsc.org/en/content/articlelanding/2023/RA/D2RA06069H#!divAbstract
    Open Access
    Resumen:
    Although 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 fluence
    Mostrar el registro completo del ítem
    Ficheros en el ítem
    icon
    Nombre: desorption_and_ablation_regimes_in_UV-MALDI.pdf
    Tamaño: 598.2Kb
    Formato: application/pdf
    Ver/Abrir
    Este ítem aparece en la(s) siguiente(s) colección(es)
    • Artículos Científicos WOS y SCOPUS

    Estadísticas de uso

    Año
    2012
    2013
    2014
    2015
    2016
    2017
    2018
    2019
    2020
    2021
    2022
    2023
    2024
    2025
    Vistas
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    25
    67
    56
    Descargas
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    10
    37
    35

    Ítems relacionados

    Mostrando ítems relacionados por Título, autor o materia.

    • Influence of coherent adiabatic excitation on femtosecond transient signals 

      Peralta Conde, Alvaro ; Montero, R.; Longarte, A. (Physica Scripta, 03/2021)
      Femtosecond laser pulses are the tools of choice for inducing and tracking the temporal evolution of electronic excitation in molecular systems. To obtain this information, a proper theoretical modeling of the observables ...
    • Aprendizaje de la ciencia a través del arte: el atelier como oportunidad de innovación didáctica 

      Marenco Mara, Paola; Varela Gadea, Florencia; Peralta Conde, Alvaro (TECHNO Review. International Technology, Science and Society Review / Revista Internacional de Tecnología, Ciencia y Sociedad, 2023)
      El objetivo de nuestro trabajo es analizar diferentes objetos científicos y estudiar posibles estrategias didácticas vehiculizadas por el dispositivo de atelier. Utilizaremos como metodología el relevamiento de experiencias ...
    • Tracking ultrafast dynamics by sub-20-fs UV pulses generated in the lab open atmosphere 

      Peralta Conde, Alvaro; Lamas, Iker; Sánchez Albaneda, Marina; Méndez, Cruz; Longarte, A.; Montero, R. (Chemical Physics Letters, 2023)
      This study describes a simple method to generate sub-20 fs UV-pulses (264 nm) by third-harmonic generation, in an air-plasma filament formed after focusing the fundamental 800 nm beam directly in the lab open-atmosphere. ...

    Mi cuenta

    AccederRegistrar

    ¿necesitas ayuda?

    Manual de UsuarioContacto: reunir@unir.net

    Listar

    todo Re-UnirComunidades y coleccionesPor fecha de publicaciónAutoresTítulosPalabras claveTipo documentoTipo de accesoEsta colecciónPor fecha de publicaciónAutoresTítulosPalabras claveTipo documentoTipo de acceso






    Aviso Legal Política de Privacidad Política de Cookies Cláusulas legales RGPD
    © UNIR - Universidad Internacional de La Rioja
     
    Aviso Legal Política de Privacidad Política de Cookies Cláusulas legales RGPD
    © UNIR - Universidad Internacional de La Rioja