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- E-ISSN 2288-8985
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Study on fatty acids composition by latent fingerprint deposition
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2008, v.21 no.3, pp.212-221
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(2008). Study on fatty acids composition by latent fingerprint deposition. Analytical Science and Technology, 21(3), 212-221.
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Abstract
사건현장에 잔류하는 잠재지문의 효과적인 탐색 및 감식을 위한 자료를 얻고자 비다공성 증거 물에 잔류된 잠재지문의 지방산 조성분석을 실시하고 7개월간의 지문유류에 따른 조성 변화에 대하여 알아보고자 하였다. 지문시료는 한국인 29-50 세 남성 8인과 여성(36 세) 1명으로부터 제공받았다. 모든 지문에서는 lauric acid (C12:0), myristic acid (C14:0), palmitic acid (C16:0), stearic acid (C18:0), elaidic acid (C18:1n9t), oleic acid (C18:1n9c), linoleic acid (C18:2n6c), arachidic acid (C20:0), linolenic acid (C18:3n3), erucic acid (C22:1n9)와 docosadienoic acid (C22:2)의 11종의 지방산이 검출됨을 확인하였고, palmitic acid (35.45-48.37%), oleic acid (14.84-28.49%), stearic acid (9.71-24.96%)와 linoleic acid (7.68-18.85%)가 확 인된 지방산조성의 75%이상을 차지하여 주요 구성성분임을 알 수 있었다. 또한 7개월간 온도 20-25oC, 습도 40-50%의 암실환경에서의 장기간 유류에 따라 총지방산의 함량이 12-25% 감소하였으며, 이는 elaidic acid (C18:1n9t), arachidic acid (C20:0), linolenic acid (C18:3n3), erucic acid (C22:1n9), docosadienoic acid (C22:2)의 장쇄지방산들의 소실과 단쇄지방산인 myristic acid (C14:0), myristoleic acid (C14:1), pentadecanoic acid (C15:0)의 생성에 따른 결과임을 확인하였다.
- keywords
- latent fingerprint deposition, fatty acids
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