Publication detail

Influence of sample surface topography on laser ablation process

SALAJKOVÁ, Z. HOLÁ, M. PROCHAZKA, D. ONDRAČEK, J. PAVLIŇÁK, D. ČELKO, L. GREGAR, F. ŠPERKA, P. POŘÍZKA, P. KANICKÝ, V. DE GIACOMO, A. KAISER, J.

Original Title

Influence of sample surface topography on laser ablation process

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

Laser ablation; LA-ICP-MS; Surface analysis; Surface topography; Fractionation

Authors

SALAJKOVÁ, Z.; HOLÁ, M.; PROCHAZKA, D.; ONDRAČEK, J.; PAVLIŇÁK, D.; ČELKO, L.; GREGAR, F.; ŠPERKA, P.; POŘÍZKA, P.; KANICKÝ, V.; DE GIACOMO, A.; KAISER, J.

Released

15. 1. 2021

ISBN

0039-9140

Periodical

Talanta

Year of study

222

Number

121512

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

9

Pages count

9

URL

https://www.sciencedirect.com/science/article/pii/S0039914020308031?via%3Dihub

BibTex

@article{BUT165487,
  author="SALAJKOVÁ, Z. and HOLÁ, M. and PROCHAZKA, D. and ONDRAČEK, J. and PAVLIŇÁK, D. and ČELKO, L. and GREGAR, F. and ŠPERKA, P. and POŘÍZKA, P. and KANICKÝ, V. and DE GIACOMO, A. and KAISER, J.",
  title="Influence of sample surface topography on laser ablation process",
  journal="Talanta",
  year="2021",
  volume="222",
  number="121512",
  pages="1--9",
  doi="10.1016/j.talanta.2020.121512",
  issn="0039-9140",
  url="https://www.sciencedirect.com/science/article/pii/S0039914020308031?via%3Dihub"
}