Computer analysis of ATR-FTIR spectra of paint samples for forensic purposes

2009
journal article
article
31
cris.lastimport.wos2024-04-09T20:40:01Z
dc.abstract.enA method of subtraction and normalization of IR spectra (MSN-IR) was developed and successfully applied to extract mathematically the pure paint spectrum from the spectrum of paint coat on different bases, both acquired by the Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) technique. The method consists of several stages encompassing several normalization and subtraction processes. The similarity of the spectrum obtained with the reference spectrum was estimated by means of the normalized Manhattan distance. The utility and performance of the method proposed were tested by examination of five different paints sprayed on plastic (polyester) foil and on fabric materials (cotton). It was found that the numerical algorithm applied is able – in contrast to other mathematical approaches conventionally used for the same aim – to reconstruct a pure paint IR spectrum effectively without a loss of chemical information provided. The approach allows the physical separation of a paint from a base to be avoided, hence a time and work-load of analysis to be considerably reduced. The results obtained prove that the method can be considered as a useful tool which can be applied to forensic purposes.pl
dc.affiliationWydział Chemii : Zakład Chemii Analitycznejpl
dc.contributor.authorSzafarska, Małgorzatapl
dc.contributor.authorWoźniakiewicz, Michał - 142043 pl
dc.contributor.authorPilch, Mariusz - 186467 pl
dc.contributor.authorZięba-Palus, Janinapl
dc.contributor.authorKościelniak, Paweł - 129217 pl
dc.date.accessioned2014-12-18T11:51:28Z
dc.date.available2014-12-18T11:51:28Z
dc.date.issued2009pl
dc.description.physical504-513pl
dc.description.volume924-926pl
dc.identifier.doi10.1016/j.molstruc.2008.11.048pl
dc.identifier.eissn1872-8014pl
dc.identifier.issn0022-2860pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/2347
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subject.enATR-FTIRpl
dc.subject.enpaintspl
dc.subject.enforensic investigationspl
dc.subtypeArticlepl
dc.titleComputer analysis of ATR-FTIR spectra of paint samples for forensic purposespl
dc.title.journalJournal of Molecular Structurepl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T20:40:01Z
dc.abstract.enpl
A method of subtraction and normalization of IR spectra (MSN-IR) was developed and successfully applied to extract mathematically the pure paint spectrum from the spectrum of paint coat on different bases, both acquired by the Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) technique. The method consists of several stages encompassing several normalization and subtraction processes. The similarity of the spectrum obtained with the reference spectrum was estimated by means of the normalized Manhattan distance. The utility and performance of the method proposed were tested by examination of five different paints sprayed on plastic (polyester) foil and on fabric materials (cotton). It was found that the numerical algorithm applied is able – in contrast to other mathematical approaches conventionally used for the same aim – to reconstruct a pure paint IR spectrum effectively without a loss of chemical information provided. The approach allows the physical separation of a paint from a base to be avoided, hence a time and work-load of analysis to be considerably reduced. The results obtained prove that the method can be considered as a useful tool which can be applied to forensic purposes.
dc.affiliationpl
Wydział Chemii : Zakład Chemii Analitycznej
dc.contributor.authorpl
Szafarska, Małgorzata
dc.contributor.authorpl
Woźniakiewicz, Michał - 142043
dc.contributor.authorpl
Pilch, Mariusz - 186467
dc.contributor.authorpl
Zięba-Palus, Janina
dc.contributor.authorpl
Kościelniak, Paweł - 129217
dc.date.accessioned
2014-12-18T11:51:28Z
dc.date.available
2014-12-18T11:51:28Z
dc.date.issuedpl
2009
dc.description.physicalpl
504-513
dc.description.volumepl
924-926
dc.identifier.doipl
10.1016/j.molstruc.2008.11.048
dc.identifier.eissnpl
1872-8014
dc.identifier.issnpl
0022-2860
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/2347
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.rights.uri*
dc.subject.enpl
ATR-FTIR
dc.subject.enpl
paints
dc.subject.enpl
forensic investigations
dc.subtypepl
Article
dc.titlepl
Computer analysis of ATR-FTIR spectra of paint samples for forensic purposes
dc.title.journalpl
Journal of Molecular Structure
dc.typepl
JournalArticle
dspace.entity.type
Publication

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