Development of fluorescent markers using polycyclic aromatic hydrocarbons with vaseline
Kurata, SK
Forensic Chemist, Criminal Investigation Laboratory, Metropolitan PoliceDepartment, 2-1-1, Kasumigaseki, Chiyoda-ku, Tokyo 100-8929, Japan.

Hirano, H
Forensic Chemist, Criminal Investigation Laboratory, Metropolitan PoliceDepartment, 2-1-1, Kasumigaseki, Chiyoda-ku, Tokyo 100-8929, Japan.

Nagai, M
Associate professor, Graduate School of Bio-applications and Systems Engineering,Tokyo University of Agriculture and Technology, 2-24 Nakamachi,Koganei-shi, Tokyo 184-8588, Japan.


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:
fluorescence spectrometer, fluorescent markers, forensic science, high performance liquid chromatography, photodegradation, polycyclic aromatic hydrocarbons, sublimation, vaseline

Paper ID: JFS4720244

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Author Kurata SK, Hirano H, Nagai M Title Development of fluorescent markers using polycyclic aromatic hydrocarbons with vaseline Symposium , Committee on