The Effect of the Presence of Iron in Common Household Substances on the Luminol Blood Detection Test
Abstract
Abstract: Forensic science encompasses a multitude of different sub-disciplines. One of these is crime scene investigation, in which investigators collect and analyze evidence found at crime scenes. Blood is a critical piece of evidence found at crime scenes, it can provide investigators with a wealth of information about the case. Luminol is one of the most frequently used presumptive blood tests and determines if a substance may be blood or not. When luminol comes into contact with the hemoglobin in blood, it produces chemiluminescence because of an oxidation reaction. There are some substances that are known to produce false-positives for the luminol test, these include strong oxidants and true peroxidases. This study focused on the presence of iron in the substances tested and whether the iron would produce a false-positive. Half of the substances tested contained iron and the other half didn’t. The substances containing iron didn’t produce a higher level of fluorescence than the substances not containing iron. The results don’t support the assumption that the presence of iron in a substance would affect its fluorescence when sprayed with luminol.
Downloads
Published
Issue
Section
License
Instars supports the need for authors to share, disseminate and maximise the impact of their research. We take our responsibility as stewards of the online record seriously, and work to ensure our policies and procedures help to protect the integrity of scholarly works.
License to the Journal. The Author hereby licenses to the Journal the irrevocable, nonexclusive, and royalty-free rights as follows:
a. The Journal may publish the Article in any format, including electronic and print media. Specifically, this license include the right to reproduce, publicly distribute and display, and transmit the Article or portions thereof in any manner, through any medium now in existence or developed in the future, including but not limited to print, electronic, and digital media, computerized retrieval systems, and other formats
b. The Journal may prepare translations and abstracts and other similar adaptations of the Article in furtherance of its publication of the Article.
c. The Journal may use the Author's name, likeness, and institutional affiliation in connection with any use of the Article and in promoting the Article or the Journal.
d. The Journal may exercise these rights directly or by means of third parties. The Journal may authorize third-party publishers, aggregators, and printers to publish the Article or to include the Article in databases or other services. [Examples of such third parties include Westlaw, Lexis, and EBSCO.]
e. The Journal may without further permission from the Author transfer, assign, or sublicense the rights that the Journal has pursuant to the Agreement.
f. In order to foster wider access to the Article, especially for the benefit of the nonprofit community, the Author hereby grants to the Journal the authority to publish the Article with a Creative Commons "Attribution, Non-Commercial, No Derivatives" license. [The Author should consult the Creative Commons website (www.creativecommons.org) for further information]
g. This liscense of rights to the Journal shall take effect immediately. In the event that the Journal does not publish the Article, this license to the Journal shall temrinate upon written notification by the Journal to the Author, or upon termination of all publication by the Journal. To the extent that moral rights may apply to the Article, this agreement does not affect the moral rights of the Author in or to the Article.
Rights of the Author. Without suggesting any limit on other rights that the Author may h ave with respect to the Article, the Author retains the following rights. To the extent that the Journal holds similar rights with respect to the Article consistent with this Agreement, the Author shall hold these rights on a nonexclusive basis. To the extent that the Article includes edits and other contributions by the staff of the Journal, the rights of the Author in this Paragraph include the right to use such edits and contributions.
a. The Author may publish the Article in another scholarly journal, in a book, or by other means. The Author may exercise this right of publication only after the date of first publication of the ARticle in the Journal in any format.
b. The Author shall, without limitation, have the right to use the ARticle in any form or format in connection with the Author's teaching, conference presentations, lectures, other scholarly works, and for all of Author's academic and professional acitvities.
c. The Author shall at any time have the fright to make, or to authorize others to make, a preprint or a final published version of the ARticle available in digital form over the Internet, including, but not limited to, a website under the control fo the Author or the Author's employer or through digital repositories including, but not limited to, those maintained by scholarly societies, funding agencies, or the Author's employer. This right shall include, without limitation, the right of the Author to permit public access to the Article as part of a repository or through a service or domain maintained by teh Author's employing the institution or a service as required by law or by agreement with a funding agency. The Journal may in its discretion deposit the ARticle with any digital repository consisten with deposits permitted by the Author under ths paragraph. [Examples of such repositories include SSRN, arXiv.org, PubMed Central, and Academic Commons at Columbia University.]
d. Any of the foregoing permitted uses of the Article, or of a work based substantially on the Article, shall include an appropriate citation to the Article, stating that it has been or is to be published in the Journal, with name and date of the Journal publication and the Internet address for the website of the Journal.
Editing of the Article. This Agreement is subject to the understanding that the ordinary editing processes of the Journal will be diligently pursued and that the Article will not be published by the Journal unless, in tis final form, it is acceptable to the Author and the Journal.