한국콘텐츠학회논문지 (The Journal of the Korea Contents Association)

  • 제18권5호
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  • Pages.105-114
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  • 2018
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  • 1598-4877(pISSN)
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  • 2508-6723(eISSN)
한국콘텐츠학회 (The Korea Contents Association)
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1,2-IND/Zn를 이용한 ninhydrin으로 처리한 지문의 후속 증강 연구

Post-treatment Enhancement of Ninhydrin-treated Fingermark Using 1,2-IND/Zn

  • 박은지 (순천향대학교 법과학대학원 법과학과) ;
  • 정하나 (순천향대학교 법과학대학원 법과학과) ;
  • 홍성욱 (순천향대학교 법과학대학원 법과학과)
  • 투고 : 2018.03.12
  • 심사 : 2018.04.08
  • 발행 : 2018.05.28
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초록

종이에 유류된 지문을 현출하기 위하여 전통적으로 사용되는 ninhydrin은 종종 배경색에 따라 사용이 제한되고 시약반응 환경에 따라 현출효과가 달라진다. 그러므로 최근에는 배경색에 제한이 없는 1,2-indanedione(1,2-IND) 등을 사용하고 있다. 이에, 본 연구는 지문 현출을 목적으로 ninhydrin을 처리한 종이에 1,2-IND/Zn를 후속 처리하였을 때 지문의 증강 여부를 확인하고자 하였다. 이를 위하여 시험관 내에서 아미노산과 ninhydrin 시약이 이미 반응한 용액에 1,2-IND/Zn와 DFO를 추가했을 때의 반응을 관찰하고, ninhydrin만 처리한 지문과 ninhydrin을 처리한 후 1,2-IND/Zn 또는 DFO를 처리한 지문의 현출 정도를 비교하였다. 그리고 ninhydrin을 처리한 종이의 보관 기간에 따른 1,2-IND/Zn 증강 효과를 관찰하였다. 그 결과, ninhydrin으로 처리한 종이 내 지문을 1,2-IND/Zn로 처리하였을 때 지문이 증강되었으며, 최대 6개월이 지난 시험지에서도 지문증강효과를 관찰할 수 있었다.

Ninhydrin traditionally used to develop fingerprints on paper is often limited in its use depending on background color and its enhancement effect differs depending on reagent reaction condition. Recently 1,2-indanedione(1,2-IND), etc. which has no limitation of background color has been used to visualize the fingermark on paper. Therefore, this study was carried out for enhancement of fingerprints after 1,2-IND/Zn treatment on paper treated with ninhydrin. Comparison between 1,2-IND/Zn reaction after ninhydrin treatment and single ninhydrin reaction were conducted under various methods. Result shows the fingerprints were enhanced when ninhydrin-treated fingerprints were treated with 1,2-IND/Zn, and their enhancement was observed even after 6 months.

키워드

과제정보

연구 과제 주관 기관 : 순천향대학교

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