潜在手印残留物中的油脂成分研究

Oil Components in the Residues of Latent Fingerprints

潜在手印在现场上出现的频率较高,科学、合理地显现和提取现场手印对于认定犯罪具有重要意义。为了提高现场手印的提取率和利用率,有必要分析潜在手印残留物中油脂成分的变化(如鲨烯、十四酸、棕榈酸、十八酸、棕榈油酸、油酸成分的出现率及其含量随时间的变化等),为研究针对潜在手印油脂成分的专一性显现方法及分析潜在手印的物质成分、新旧程度等提供理论支持,进而提高现场潜在手印的提取率和显现率。

As high frequency of latent fingerprints at the scene, scientific and rational behavior and extraction of field fingerprint is great significance for the determination of the crime. In order to improve the extraction rate and utilization rate of finger prints, necessary changes in oil composition analysis of latent fingerprints in the residue （such as squalene, fourteen acid, palmitic acid, palmitoleic acid, oleic acid, the eighteen components of the rate of occurrence and the content changes with the time, etc.）, for the study of specific for latent fingerprints of oils show method and analysis of material composition of la- tent fingerprints, recency, providing theoretical support, and then improve the scene extraction rate and rate of appearance of latent fingerprints.