@article{ref1,
title="Chemistry in Crime Investigation: Sodium Percarbonate Effects on Bloodstains Detection",
journal="Journal of forensic sciences",
year="2012",
author="Castelló, Ana and Francés, Francesc and Verdú, Fernando",
volume="57",
number="2",
pages="500-502",
abstract="Chemistry plays a leading role in crime investigation. In the study of bloodstains, chemical reactions provide the means for the detection. All these procedures have been thoroughly studied. However, recently, a new source of error has been found: washing stains with &quot;active oxygen&quot; detergents abrogates presumptive and human hemoglobin tests for bloodstains (although visible). The aim of this investigation was to evaluate the ability of pure sodium percarbonate-main component of detergents-to abrogate presumptive and human hemoglobin tests. Then, a solution to this problem could be found. The results demonstrate that pure sodium percarbonate-itself-is able to abrogate all tests, as well as the different degrees to which each of them is affected by the product. Consequently, faced with a stain of bloody appearance, even the preliminary tests are negative; it is advisable to analyze the DNA. Otherwise, the opportunity of obtaining valuable information is lost.<p /> <p>Language: en</p>",
language="en",
issn="0022-1198",
doi="10.1111/j.1556-4029.2011.01999.x",
url="http://dx.doi.org/10.1111/j.1556-4029.2011.01999.x"
}