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Laser bidezko ablazioaren egungo egoera eta aplikazioak

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Date
2017
Author
Grijalba, Nagore
Claverie, Fanny
Donard, Ariane
Tabouret, Hélène
Pecheyran, Christophe
Unceta Zaballa, Nora ORCID
Goicolea Altuna, María Aranzazu ORCID
Barrio Díez-Caballero, Ramón José ORCID
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Ekaia 31 : 45-65 (2017)
URI
http://hdl.handle.net/10810/38933
Abstract
80ko hamarkadaz geroztik, laser bidezko ablazioa eta akoplamendu induktibozko plasma-masa espektrometria (LA-ICPMS) konbinatzen dituen teknika analitikoa sakonki ikertu eta garatu da, eta, gaur egun, lagin solidoen analisi elemental zein isotopiko zuzena egiteko erreferentziazko teknika bilakatu da. Ezaugarri bereizgarrienak hauexek dira: erabilpen erraza, analisi-denbora laburra, laginari eragindako kalte urriak, sentsibilitate handia eta elementu nagusi zein minoritarioen eta ratio isotopikoen aldibereko neurketa ahalbidetzen duen tarte dinamiko zabala. Lan honetan, LA-ICPMS teknikaren oinarriak eta konfigurazio orokorra azaldu eta femtosegundo/ nanosegundo laser bidezko ablazioaren erabileraren arteko desberdintasun nagusiak nabarmentzen dira. Azkenik, teknika honen egungo egoeraz jabetzeko, jatorri askotariko laginen analisi elementala laburbildu eta berrikusten da biologian eta ingurumenean, osasunean, geokimikan zein auzitegi zientzien alorretan.; Since the early 80s, laser-ablation inductively-coupled-plasma mass spectrometry (LA-ICPMS) has been widely explored and nowadays is considered to be one of the most versatile analytical techniques for the direct trace elemental and isotopic analyses of solid samples. The most remarkable features are ease of use, fast sample throughput, limited sample damages, high sensitivity and wide dynamic range which allows the simultaneous acquisition of major and trace elements, as well as the measurement of isotope ratios. Throughout this manuscript, the principles and general setup of LA-ICPMS will be extensively explained and the performance of femtosecondLA in comparison to nanosecond-LA discussed. In order to show the state of the art in this field a variety of examples for elemental analysis of solid samples in biological/environmental science, geochemistry and forensic science applications will be presented.
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