Fine-tuning of LA-ICP-QMS conditions for elemental mapping

Johannes T. van Elteren; Dino Metarapi; Martin Šala; Vid S. Šelih; Ciprian C. Stremtan

doi:10.1039/D0JA00322K

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Fine-tuning of LA-ICP-QMS conditions for elemental mapping†

Johannes T. van Elteren,

*^a Dino Metarapi,

^a Martin Šala,

^a Vid S. Šelih

^a and Ciprian C. Stremtan^b

Author affiliations

* Corresponding authors

^a Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, Ljubljana 1000, Slovenia
E-mail: elteren@ki.si

^b Teledyne Photon Machines, 384 Gallatin Park Drive, Bozeman, MT 59715, USA

Abstract

For high-speed and high-resolution elemental LA-ICP-QMS mapping it is important to select the optimal operational conditions to avoid aliasing, minimize blur and maximize the signal-to-noise ratio. An earlier paper already highlighted the fundamentals involved in the selection of these conditions (J. Anal. At. Spectrom., 2019, 34, 1919); this work will fine-tune these conditions using the principle of divisors. This implies finding instrumentally selectable conditions to satisfy the anti-aliasing criterion, i.e., repetition rate × acquisition time = [Doublestruck Z] ⁺. The mathematics involved has been unified in a simple to use app (https://laicpms-apps.ki.si/webapps/home/). The app generates a list of optimized conditions from which the user can select the optimal set, based on the requirements for single or multiple pulse LA-ICP-QMS mapping of elements in “thick” samples.

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Supplementary files

Supplementary information PDF (241K)

Article information

DOI: https://doi.org/10.1039/D0JA00322K
Article type: Technical Note
Submitted: 13 Jul 2020
Accepted: 17 Aug 2020
First published: 17 Aug 2020

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J. Anal. At. Spectrom., 2020,35, 2494-2497

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Fine-tuning of LA-ICP-QMS conditions for elemental mapping

J. T. van Elteren, D. Metarapi, M. Šala, V. S. Šelih and C. C. Stremtan, J. Anal. At. Spectrom., 2020, 35, 2494 DOI: 10.1039/D0JA00322K

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Journal of Analytical Atomic Spectrometry

Fine-tuning of LA-ICP-QMS conditions for elemental mapping†

Abstract

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Fine-tuning of LA-ICP-QMS conditions for elemental mapping

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