dc.contributor.author |
Gomes, C. |
|
dc.contributor.author |
López-Matayoshi, C. |
|
dc.contributor.author |
Palomo-Díez, S. |
|
dc.contributor.author |
López-Parra, A. M. |
|
dc.contributor.author |
Cuesta-Alvaro, P. |
|
dc.contributor.author |
Baeza-Richer, C. |
|
dc.contributor.author |
Gibaja, J. F. |
|
dc.contributor.author |
Arroyo-Pardo, E. |
|
dc.date.accessioned |
2019-01-25T16:20:57Z |
|
dc.date.available |
2019-01-25T16:20:57Z |
|
dc.date.issued |
2017 |
|
dc.identifier.uri |
https://hdl.handle.net/20.500.12866/4809 |
|
dc.description.abstract |
The nature of the sample in a forensic case is one of the most important factors, since it determines the posterior analysis, helping to define or discard its identity (like blood versus semen). A presumptive test is a qualitative analysis that allows to identify, or confirm, the presence of a substance in a sample. These determinations usually occur, after a chemical reaction, and a specific colour is produced. A false positive is another substance reacting the same way, producing the expected result. The aim of this work was to evaluate the most effective presumptive test (with fewer false-positives) when analysing products that could look and behave like blood during a forensic screening assay. Eight different products were tested, like Betadine®, and four reagents were considered: Tetramethylbenzidine, O-toluidine, Leuchomalachite green and BlueStar® Forensic (BlueStar). Each product was tested with the reagents five times − mixed with human blood (3:1), with three different animal blood (3:1), and then unmixed. Our results indicated that Leuchomalachite green is the most suitable presumptive test, since it was the reagent with less false positives. |
en_US |
dc.language.iso |
eng |
|
dc.publisher |
Elsevier |
|
dc.relation.ispartofseries |
Forensic Science International |
|
dc.rights |
info:eu-repo/semantics/restrictedAccess |
|
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es |
|
dc.subject |
2 methylaniline |
en_US |
dc.subject |
Article |
en_US |
dc.subject |
benzidine |
en_US |
dc.subject |
Benzidine |
en_US |
dc.subject |
Blood |
en_US |
dc.subject |
blood sampling |
en_US |
dc.subject |
bluestar |
en_US |
dc.subject |
BlueStar® forensic |
en_US |
dc.subject |
controlled study |
en_US |
dc.subject |
False positive |
en_US |
dc.subject |
human |
en_US |
dc.subject |
leuchomalachite green |
en_US |
dc.subject |
Leuchomalaquite green |
en_US |
dc.subject |
nonhuman |
en_US |
dc.subject |
Ortho-Tolidine |
en_US |
dc.subject |
povidone iodine |
en_US |
dc.subject |
priority journal |
en_US |
dc.subject |
reagent |
en_US |
dc.subject |
tetramethylbenzidine |
en_US |
dc.subject |
Tetramethylbenzidine |
en_US |
dc.subject |
unclassified drug |
en_US |
dc.title |
Presumptive tests: A substitute for Benzidine in blood samples recognition |
en_US |
dc.type |
info:eu-repo/semantics/article |
|
dc.identifier.doi |
https://doi.org/10.1016/j.fsigss.2017.09.213 |
|
dc.subject.ocde |
https://purl.org/pe-repo/ocde/ford#3.01.09 |
|
dc.relation.issn |
1872-6283 |
|