ToF-SIMS Parallel Imaging MS/MS of Lead Soaps in Embedded Paint Cross Sections.

Kimberly G Garcia, Philippe Massonnet, Sebastiaan Van Nuffel, Ron M A Heeren

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Article in Analytical chemistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Kimberly G GarciaMaastricht MultiModal Molecular Imaging (M4i) Institute, Maastricht University, Universiteitssingel 50, Maastricht 6229 ER, The Netherlands.

Philippe MassonnetMaastricht MultiModal Molecular Imaging (M4i) Institute, Maastricht University, Universiteitssingel 50, Maastricht 6229 ER, The Netherlands.ORCID 0000-0002-1326-692X

Sebastiaan Van NuffelMaastricht MultiModal Molecular Imaging (M4i) Institute, Maastricht University, Universiteitssingel 50, Maastricht 6229 ER, The Netherlands.ORCID 0000-0003-1251-3236

Ron M A HeerenMaastricht MultiModal Molecular Imaging (M4i) Institute, Maastricht University, Universiteitssingel 50, Maastricht 6229 ER, The Netherlands.ORCID 0000-0002-6533-7179

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No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the field of cultural heritage, and more specifically in oil paintings, the ability to unambiguously identify and locate metal soaps is of great interest for a better understanding of painting degradation. Here, we demonstrate the use of a Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) instrument capable of tandem mass spectrometry imaging for the unambiguous identification and localization of lead soaps in cross sections of samples of old oil paintings at high spatial resolution. It is shown that the specific fragmentation pattern of lead soaps is dictated by the loss of the lead ion and that fragmentation occurs on the hydrocarbon chains of the fatty acids. This method offers new opportunities for a better understanding of the chemical changes in aging oil paint samples as well as investigation of organic pigments and binders.

Identifiers

PMID39761241

DOI10.1021/acs.analchem.4c05523

PMCPMC11755392

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