ISSN: 0022-1198
CODEN: JFSCA
Published Online: 1 March 2002
Page Count: 10

Development of Fluorescent Markers Using Polycyclic Aromatic Hydrocarbons with Vaseline
Hirano, H
Forensic Chemist, Criminal Investigation Laboratory,

Nagai, M
Associate professor, Graduate School of Bio-applications and Systems Engineering, Tokyo University of Agriculture and Technology,

Kurata, S
Forensic Chemist, Criminal Investigation Laboratory,

(Received 20 August 2001; accepted 10 August 2001)

Abstract

Identifiable fluorescent markers were developed as tracers to tail suspects using phenanthrene, anthracene, fluoranthene, pyrene, perylene, and coronene in vaseline. Vaseline was used as a carrier of the marker. Of the six compounds in the vaseline, perylene and fluoranthene were readily observed under ultraviolet (UV) light at a wavelength of 365 nm. All six compounds were identified selectively and sensitively without interference of vaseline using a high performance liquid chromatograph (HPLC) with a fluorescence detector. The detection limit was much less than 1 ng, corresponding to that of the observation behavior under UV light. The results showed that each component with vaseline was more effective than the individual component for the delay in degradation. The case examples of the fluorescent markers are shown.

Keywords:
forensic science, fluorescent marker, polycyclic aromatic hydrocarbons, vaseline, high performance liquid chromatography, fluorescence spectrophotometer, sublimation, photodegradation

Paper ID: JFS15240J
DOI: 10.1520/JFS15240J
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