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

HS-SPME GC/MS를 이용한 볼펜잉크의 휘발성 성분 분석

  • Choi, Mi-Jung (Dept. of Scientific Criminal Investigation, Chungnam National University) ;
  • Kim, Chang-Seong (Hazard Evaluation Center, Korea Testing & Research Institute) ;
  • Sun, Yale-Shik (Hazard Evaluation Center, Korea Testing & Research Institute) ;
  • Park, Sung-Woo (Dept. of Scientific Criminal Investigation, Chungnam National University)
  • 최미정 (충남대학교 과학수사학과) ;
  • 김창성 (한국화학시험연구원) ;
  • 선일식 (한국화학시험연구원) ;
  • 박성우 (충남대학교 과학수사학과)
  • Received : 2010.04.01
  • Accepted : 2010.06.10
  • Published : 2010.08.25

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 ($0.089-0.244\;{\mu}g$/mL), o-xylene ($0.072-0.331\;{\mu}g$/mL), m,p-xylene ($0.062-0.318\;{\mu}g$/mL), benzene ($0.003-0.173\;{\mu}g$/mL), 1,1-dichloroethylene ($0.003-0.295\;{\mu}g$/mL), toluene ($0.007-0.484\;{\mu}g$/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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