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Influence of sample surface topography on laser ablation process
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SYSNO ASEP 0559350 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Influence of sample surface topography on laser ablation process Tvůrce(i) Salajková, Z. (CZ)
Holá, M. (CZ)
Procházka, D. (CZ)
Ondráček, Jakub (UCHP-M) RID, ORCID, SAI
Pavliňák, D. (CZ)
Čelko, L. (CZ)
Gregar, F. (CZ)
Šperka, J. (CZ)
Pořízka, P. (CZ)
Kanický, V. (CZ)
De Giacomo, A. (IT)
Kaiser, J. (CZ)Číslo článku 121512 Zdroj.dok. Talanta. - : Elsevier - ISSN 0039-9140
Roč. 222, Jan 15 (2021)Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova laser ablation LA-ICP-MS ; surface topography ; surface Obor OECD Analytical chemistry Způsob publikování Open access s časovým embargem (16.01.2023) Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000589944000010 EID SCOPUS 85089552726 DOI 10.1016/j.talanta.2020.121512 Anotace In this work we discuss how sample surface topography can significantly influence the laser ablation (LA) process and, in turn, the analytical response of the LA Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) method. Six different surface topographies were prepared on a certified aluminium alloy sample BAM 311 and SRM NIST 610 to investigate the phenomenon. All the samples were repetitively measured by LA-ICP-MS using a spot by spot analysis. The effect of laser fluence in the range of 1–13 J/cm2 was studied. For majority of measured isotopes, the ICP-MS signal was amplified with roughening of the sample surface. A stronger effect was observed on the Al alloy sample, where the more than sixty-time enhancement was achieved in comparison to the polished surface of the sample. Since the effect of surface topography is different for each analyte, it can be stated that surface properties affect not only the ICP-MS response, but also elemental fractionation in LA. The presented results show that different surface topographies may lead to misleading data interpretation because even when applying ablation preshots, the signal of individual elements changes. The utmost care must be taken when preparing the surface for single shot analysis or chemical mapping. On the other hand, by roughening the sample surface, it is possible to significantly increase the sensitivity of the method for individual analytes and supress a matrix effect. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2023 Elektronická adresa https://hdl.handle.net/11104/0332689
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