PMID- 38309110 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240223 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 271 DP - 2024 May 1 TI - Non-matrix-matched calibration in bulk multi-element laser ablation - Inductively coupled plasma - Mass spectrometry analysis of diverse materials. PG - 125712 LID - S0039-9140(24)00091-2 [pii] LID - 10.1016/j.talanta.2024.125712 [doi] AB - Laser ablation inductively coupled plasma - mass spectrometry (LA-ICP-MS) is a frequently used microanalytical technique in elemental analysis of solid samples. In most instances the use of matrix-matched calibration standards is necessary for the accurate determination of elemental concentrations. However, the main drawback of this approach is the limited availability of certified reference materials. Here, we present a novel conceptual framework in LA-ICP-MS quantification without the use of matrix-matched calibration standards but instead employment of an ablation volume-normalization method (via measurement of post-ablation line scan volumes by optical profilometry) in combination with a matrix-adapted fluence (slightly above the ablation threshold). This method was validated by cross-matrix quantification of reference materials typically investigated by LA-ICP-MS, including geological and biological materials. This allows for more accurate and precise multi-element quantification, and enables quantification of previously unquantifiable elements/materials. CI - Copyright (c) 2024 The Authors. Published by Elsevier B.V. All rights reserved. FAU - Mervic, Kristina AU - Mervic K AD - Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000, Ljubljana, Slovenia; Jozef Stefan International Postgraduate School, Jamova Cesta 39, SI-1000, Ljubljana, Slovenia. FAU - Selih, Vid S AU - Selih VS AD - Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000, Ljubljana, Slovenia. FAU - Sala, Martin AU - Sala M AD - Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000, Ljubljana, Slovenia. Electronic address: martin.sala@ki.si. FAU - van Elteren, Johannes T AU - van Elteren JT AD - Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000, Ljubljana, Slovenia. Electronic address: elteren@ki.si. LA - eng PT - Journal Article DEP - 20240201 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R SB - IM COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2024/02/04 00:42 MHDA- 2024/02/04 00:43 CRDT- 2024/02/03 18:11 PHST- 2023/11/13 00:00 [received] PHST- 2024/01/11 00:00 [revised] PHST- 2024/01/22 00:00 [accepted] PHST- 2024/02/04 00:43 [medline] PHST- 2024/02/04 00:42 [pubmed] PHST- 2024/02/03 18:11 [entrez] AID - S0039-9140(24)00091-2 [pii] AID - 10.1016/j.talanta.2024.125712 [doi] PST - ppublish SO - Talanta. 2024 May 1;271:125712. doi: 10.1016/j.talanta.2024.125712. Epub 2024 Feb 1.