NCJ Number
187607
Journal
Journal of Forensic Sciences Volume: 46 Issue: 2 Dated: March 2001 Pages: 254-267
Date Published
March 2001
Length
14 pages
Annotation
The detection and identification of traces of inorganic ions and sugars can have a major role in the forensic investigation of an explosives-related incident; the survey reported in this paper investigated the background levels of these substances in the general environment.
Abstract
Six sampling locations were selected from around the mainland of the United Kingdom, representing urban and rural sites. Swab and vacuum samples were collected from different locations within each site, including motor vehicles, private houses, hotels, the exterior of buildings, road surfaces, and street signs. Sampling was conducted in summer and winter to investigate changes in the levels of the target species due to seasonal factors such as road treatments or weather. The samples were extracted with water and analyzed for a range of inorganic anions, cations, and sugars using ion chromatography. Most of the target anions were found to be common to all locations. Chloride, sulphate, nitrate, and phosphate were found to be the most common and the most abundant. Chlorate was found at a low level in some external samples. Perchlorate and thiocyanate were not detected in any samples. There was a marked increase in the quantity of sodium and chloride detected in samples collected during the winter. Sodium and calcium were detected in most samples. Potassium and magnesium were detected in approximately half of the samples. Ammonium was less common, but detected at significant levels in wall samples. Glucose, fructose, and sucrose were detected in the vacuum samples from the interior surfaces of houses, hotels, and cars. 3 tables, 25 figures, and 1 reference