liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Comparative analysis of lubricants used for weapons
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Organic Analytical Chemistry .
2001 (English)In: Journal of Forensic Sciences, ISSN 0022-1198, Vol. 46, no 3, 441-447 p.Article in journal (Refereed) Published
Abstract [en]

A method for analysis and comparison of mineral oil-based greases thickened with a metal soap is presented. The greases are first analyzed with Fourier-transform infrared spectroscopy (FT-IR). This analysis differentiates between greases with different main constituents. When two samples can not be differentiated with IR, a more thorough analysis has to be performed. The base oil and the soap are separated. The soap is derivatized and the two components are each analyzed with gas chromatography. The metal ions of the soap are analyzed with scanning electron microscopy with an energy dispersive X-ray detector (SEM-EDX). By the method presented, grease from a weapon may be differentiated or proven to be identical to grease collected from a suspect. As thr results indicate that the grease does not change with respect to composition when the weapon is fired, the method may be used in many cases. The application of the method to an authentic case is reported.

Place, publisher, year, edition, pages
2001. Vol. 46, no 3, 441-447 p.
Keyword [en]
forensic science, criminalistic grease, lubricant, weapon, gas chromatography, metal soap thickener, Fourier-transform infrared spectrophotometry, scanning electron microscope, energy dispersive X-ray detector
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-48356OAI: diva2:269252
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-13

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Borén, Hans
By organisation
The Institute of TechnologyOrganic Analytical Chemistry
In the same journal
Journal of Forensic Sciences
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 99 hits
ReferencesLink to record
Permanent link

Direct link