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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Composition of volatile organic components on ballpoint pen inks by HS-SPME GC/MS

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2010, v.23 no.4, pp.414-422
https://doi.org/10.5806/AST.2010.23.4.414




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Abstract

In forensic examinations of question document, analysis about inks components and the dating of ink entries is often of considerable importance and forensic examination of inks is principally concerned with the classification and comparison of chemically complex mixtures. The authenticity about inks analysis of a questioned document may be examined through the analysis of inks used to TLC, HPLC/MS, GC/MS, LDI/MS. We collected 56 difference types of black ballpoint pen inks manufactured from 5 country groups. We identified major 6 species volatile organic components (VOCs), ethylbenzene (0.089-0.244 μg/mL), o-xylene (0.072-0.331 μg/mL), m,p-xylene (0.062-0.318 μg/mL), benzene (0.003-0.173 μg/mL), 1,1-dichloroethylene (0.003-0.295 μg/mL), toluene (0.007-0.484 μg/mL) using HS-SPME GC/MS. The results of this study indicated that determined VOCs of black ballpoint pen inks could make a discriminating tool of inks analysis for forensic question document and can supply methodology for classification and identification of between ballpoints pen inks.

keywords
forensic science, ballpoint pen inks, classification, discrimination, HS-SPME GC/MS


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