Affiliation:
1. Faculty of Sciences and Mathematics, Department of Chemistry, Niš
2. Ministry of Interior of the Republic of Serbia, The National Crime-Technical Centre, Belgrade
Abstract
The paper outlines the changes in the mineral tissue of teeth which was
exposed to the influence of natural mediums agents. Also, mineral tissue can
be used as potentially important forensic material which is gradually altered
under the influence of external mediums. Biometal content was determined by
using ICP-OES technique. According to the quantitative changes of biometals
in teeth tissue after its exposure to different mediums, the migration of
ions Ca2+, Mg2+, Fe2+, Cu2+ and Zn2+ in the teeth-soil and teeth-water
mediums was observed. The Ca2+ and Mg2+ ions content in mineral tissue
increased, but the Cu2+ ion content decreased. The Fe2+ and Zn2+ ions
migration depends on the content and type of the soil mediums and differs for
clay soil, limestone enriched soil and urban area soil. The occurred changes
in the teeth mineral matrix were detected by SEM-EDS technique. The intensity
of the biometal content and the mineral matrix changes are a potentially
significant subject matter for forensic examination, because they indicate
the kind of medium in which this material was kept.
Funder
Ministry of Education, Science and Technological Development of the Republic of Serbia
Publisher
National Library of Serbia