Forensic determination of crossing lines involving stamp and pen inks by mass spectrometry imaging

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dc.contributor.authorRodrigues De Morais D.
dc.contributor.authorCampelo J.D.M.
dc.contributor.authorRazzo D.
dc.contributor.authorEberlin M.N.
dc.contributor.authorCosta J.L.
dc.contributor.authorSantos J.M.
dc.date.accessioned2024-03-12T23:48:47Z
dc.date.available2024-03-12T23:48:47Z
dc.date.issued2020
dc.description.abstract© The Royal Society of Chemistry 2020.One of the most challenging tasks in forensic cases is to identify the intersection sequence of lines and inks in questionable documents, mainly in those involving significant financial values such as insurance claims, wills and contracts. Optical examination using microscopy images has been commonly used, but this morphological examination presents severe limitations that can lead to false conclusions. Herein, we show that mass spectrometry imaging (MSI) using easy ambient sonic-spray ionization (EASI) can be used to accurately identify the sequence of lines at intersecting points between stamp and pen inks. First, we used proof of concept cases and ion images, and extracted ion chronograms and EASI-MS profiles to evaluate how they could identify the intersection sequences. EASI-MSI was then used to distinguish the sequence of intersecting lines in two cases of simulated contract documents in which a signature made from pen ink was placed under or above the stamp ink. We demonstrate that EASI-MSI provided a clear indication of the actual sequence, showing that it functions as an efficient and rather unequivocal analytical tool in the examination of crossing ink lines when stamping is involved.
dc.description.firstpage951
dc.description.issuenumber7
dc.description.lastpage958
dc.description.volume12
dc.identifier.doi10.1039/c9ay02330e
dc.identifier.issn1759-9679
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35025
dc.relation.ispartofAnalytical Methods
dc.rightsAcesso Restrito
dc.titleForensic determination of crossing lines involving stamp and pen inks by mass spectrometry imaging
dc.typeArtigo
local.scopus.citations11
local.scopus.eid2-s2.0-85081102990
local.scopus.subjectContract document
local.scopus.subjectEasy ambient sonic spray ionizations
local.scopus.subjectFinancial values
local.scopus.subjectInsurance claims
local.scopus.subjectMass spectrometry imaging (MSI)
local.scopus.subjectMass-spectrometry imaging
local.scopus.subjectMicroscopy images
local.scopus.subjectProof of concept
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85081102990&origin=inward
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