New Formulation of Acid Yellow 7 with an Ethanol/Water-Based System

• NCJ Number: 238789
• Journal: Canadian Society of Forensic Science Journal Volume: 45 Issue: 1 Dated: March 2012 Pages: 6-13
• Author(s): Augustine Pithon; Damien Henrot; Nicolas Thiburce; Johann Jegou
• Date Published: March 2012
• Length: 8 pages
• Publication Format: Article
• Publication Type: Research (Applied/Empirical)
• Language: English
• Country: Canada

Annotation

This study explored an improved process for the formulation of Acid Yellow 7.

Abstract

Acid Yellow 7 is an enhancement technique used more and more in forensic laboratories to develop bloody fingermarks. Its fluorescence property increases its sensitivity and offers to latent print examiners an efficient new tool in a sequence of development. This study aims at developing a new formulation of a commercial Acid Yellow 7 solution (BVDA solution) with an ethanol/water-based solvent, to ensure a more practical use at the scene of the crime, and an increase in the pH to render the mark more compatible for a DNA analysis without a decrease of the signal sensitivity in comparison with the BVDA formulation. (Published Abstract)