| Autor: |
Lilly McClelland, Ethan Belak, Juliana Curtis, Ethan Krekeler, April Sanders, Mark P. S. Krekeler |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Forensic Sciences, Vol 4, Iss 3, Pp 463-474 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2673-6756 |
| DOI: |
10.3390/forensicsci4030030 |
| Popis: |
Human urine and its detection are of interest in forensic studies in numerous contexts. Both crystalline urea and 1.0 M solutions of urea, as synthetic analog endmember components of human urine, were investigated as a proof-of-concept study to determine if detailed lab spectroscopy would be viable. Urea was reliably detected on Ottawa sand at concentrations of approximately 3.2% in dried experiments. Urea was detectable after 1 week of solution evaporation under lab conditions, at 9.65 wt.% 1 M solution. This investigation successfully establishes urea as a material of interest for reflective spectroscopy and hyperspectral remote sensing/image spectroscopy on a wide range of spatial scales, from specific centimeter-scale areas in a crime scene to searching large outdoor regions > 1 km2. In addition, this investigation is relevant to improving the monitoring of human trafficking, status and condition of refugee camps, and monitoring sewage. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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