- Volume 26 Issue 4
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Comparison of pigment in automotive solid color paints by FT-IR and XRF spectroscopy for forensic aspect
법과학적 관점에서 FT-IR과 XRF를 이용한 단색 페인트의 안료 비교
- Park, Ha-Sun (National Forensic Service) ;
- Kim, Ki-Wook (National Forensic Service) ;
- Heo, Sangcheol (National Forensic Service) ;
- Ryu, Seung-Jin (National Forensic Service) ;
- Lee, Hyunik (National Forensic Service) ;
- Min, Ji-Sook (National Forensic Service)
- 박하선 (국립과학수사연구원) ;
- 김기욱 (국립과학수사연구원) ;
- 허상철 (국립과학수사연구원) ;
- 유승진 (국립과학수사연구원) ;
- 이현익 (국립과학수사연구원) ;
- 민지숙 (국립과학수사연구원)
- Received : 2013.07.12
- Accepted : 2013.07.29
- Published : 2013.08.25
Identification of paint on victim's clothing and a vehicle are valuable for forensic examination when investigating hit-and-run accidents. Automotive paints on clothes are used to prove a victim caused by traffic accident and to identify a suspected vehicle. The comparison of transferred paints between victim's vehicle and suspected vehicle can be an important evidence in reconstructing the accident situation and in discovering the truth. The paints such as white, yellow, red, blue, or black are hard to examine particle shape under a stereomicroscope because of it is not included aluminum, pearl, and mica flakes in the pigments. The aim of this study under forensic aspect is to compare pigment among basecoat layers of solid paints by identifying inorganic elemental compositions and binder resins of pigments using by micro-FT-IR and micro-XRF spectrometer. The pigment samples were analyzed by using two methods of FT-IR: Reflectance and ATR method. Two methods of FT-IR were useful in discriminating binder resins of pigments by comparing characteristic peaks and patterns of spectra. Also, XRF spectrometer could identify the elemental compositions in inorganic pigments of trace paints which are difficult to compare the identification by FT-IR.
Supported by : 미래창조과학부
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