کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
96682 | 160469 | 2011 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Characterization of children's latent fingerprint residues by infrared microspectroscopy: Forensic implications Characterization of children's latent fingerprint residues by infrared microspectroscopy: Forensic implications](/preview/png/96682.png)
The chemistry of children's latent fingerprint residues was investigated as a function of time and temperature by non-destructive spectrochemical analysis. Latent fingerprints from children, ranging in age from 2 to 11 years, were deposited onto aluminum-coated glass slides and were analyzed by Fourier-Transform Infrared Microspectroscopy. The results revealed that there are three major classes of compounds present in children's latent fingerprints: carboxylic acid salts, proteins, and esters. By studying the changes in the fingerprint residues as a function of time and at elevated temperatures, we discovered that the salts in the fingerprint residues are stable relative to the esters. These findings have relevant forensic implications; by targeting the acid salts instead of the esters or proteins, children's latent fingerprints may be recovered after extended periods of time have elapsed.
Journal: Forensic Science International - Volume 206, Issues 1–3, 20 March 2011, Pages 161–165