Enhancement of polycyanoacrylate-developed fingerprints

Details Enhancement of polycyanoacrylate-developed fingerprints Enhancement of polycyanoacrylate-developed fingerprints

1992-06-29

1994-09-20

Lusignan, Michael

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Combined or convertible

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424 2, 427 1, 427558, B65D 6900, B65D 7100

Patent

active

053481593

ABSTRACT:
The invention disclosed relates to a composition and method for enhancing the contrast of polycyanoacrylate-developed fingerprints and the like. The composition includes a metal chelate of the structural formula ##STR1## wherein R is a UV-absorbing aromatic group, X is an electron attracting group and M is a suitable metal ion, a suitable water-soluble organic solvent and water, at a pH of 3 to 10.

REFERENCES:
patent: 4806380 (1989-02-01), Sato et al.
patent: 5194289 (1993-03-01), Butland
Adcock, J. M., "The Development of Latent Fingerprints on Human Skin: The Iodine-Silver Transfer Method", Jan. 6, 1977.
Menzel, E. R. et al, "Fluorescent Metal-Ruhemann's Purple Coordination Compounds: Applications to Latent Fingerprint Detection", Feb. 3, 1989.
Allman, D. S. et al, "Detection of Fingerprints on Skin", Dec. 1991.

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