Raman spectroscopic signature of vaginal fluid and its potential application in forensic body fluid identification
- 作者：Aliaksandra Sikirzhytskaya ; Vitali Sikirzhytski ; Igor K. Lednev ; lednev@albany.edu
- 关键词：Raman spectroscopy ; Vaginal fluid ; Principal components ; Statistical analysis ; Forensic science ; Body fluid identification
- 刊名：Forensic Science International
- 出版年：2012
- 期刊代码：104_03790738
- 类别：med
- 出版时间：10 March, 2012
- 卷：216
- 期：1-3
- 页码：44-48
- 文件大小：529 K
摘要
Traces of human body fluids, such as blood, saliva, sweat, semen and vaginal fluid, play an increasingly important role in forensic investigations. However, a nondestructive, easy and rapid identification of body fluid traces at the scene of a crime has not yet been developed. The obstacles have recently been addressed in our studies, which demonstrated the considerable potential of Raman spectroscopy. In this study, we continued to build a full library of body fluid spectroscopic signatures. The problems concerning vaginal fluid stain identification were addressed using Raman spectroscopy coupled with advanced statistical analysis. Calculated characteristic Raman and fluorescent spectral components were used to build a multidimensional spectroscopic signature of vaginal fluid, which demonstrated good specificity and was able to handle heterogeneous samples from different donors.