Raman spectroscopy and capillary electrophoresis applied to forensic colour inkjet printer inks analysis

2014
journal article
article
dc.abstract.enForensic laboratories are increasingly engaged in the examination of fraudulent documents, and what is important, in many cases these are inkjet-printed documents. That is why systematic approaches to inkjet printer inks comparison and identification have been carried out by both non-destructive and destructive methods. In this study, micro-Raman spectroscopy and capillary electrophoresis (CE) were applied to the analysis of colour inkjet printer inks. Micro-Raman spectroscopy was used to study the chemical composition of colour inks in situ on a paper surface. It helps to characterize and differentiate inkjet inks, and can be used to create a spectra database of inks taken from different cartridge brands and cartridge numbers. Capillary electrophoresis in micellar electrophoretic capillary chromatography mode was applied to separate colour and colourless components of inks, enabling group identification of those components which occur in a sufficient concentration (giving intensive peaks). Finally, on the basis of the obtained results, differentiation of the analysed inks was performed. Twenty-three samples of inkjet printer inks were examined and the discriminating power (DP) values for both presented methods were established in the routine work of experts during the result interpretation step. DP was found to be 94.0% (Raman) and 95.6% (CE) when all the analysed ink samples were taken into account, and it was 96.7% (Raman) and 98.4% (CE), when only cartridges with different index numbers were considered.pl
dc.affiliationWydział Chemii : Zakład Chemii Analitycznejpl
dc.contributor.authorKról, Małgorzata - 147421 pl
dc.contributor.authorKaroly, Agnespl
dc.contributor.authorKościelniak, Paweł - 129217 pl
dc.date.accessioned2015-06-18T06:38:24Z
dc.date.available2015-06-18T06:38:24Z
dc.date.issued2014pl
dc.description.physical142-149pl
dc.description.volume242pl
dc.identifier.doi10.1016/j.forsciint.2014.06.031pl
dc.identifier.eissn1872-6283pl
dc.identifier.issn0379-0738pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/9744
dc.languageengpl
dc.language.containerengpl
dc.rights.licencebez licencji
dc.subject.encapillary electrophoresispl
dc.subject.endiscriminating powerpl
dc.subject.enRaman spectroscopypl
dc.subject.eninkjet printer inkspl
dc.subtypeArticlepl
dc.titleRaman spectroscopy and capillary electrophoresis applied to forensic colour inkjet printer inks analysispl
dc.title.journalForensic Science Internationalpl
dc.typeJournalArticlepl
dspace.entity.typePublication

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