Minimising background fluorescence can enhance the visible details of treated fingerprints. Here, a 4-tpt fingerprint powder exhibiting long-lived phosphorescence is applied to this end. The powder was found to suppress background fluorescence, including on challenging surfaces, when using standard forensic equipment and eschewing specialized or bespoke imaging techniques.
R. A. Parmenter, K. T. Clarke and W. J. Gee, Analyst, 2021, 146, 5225 DOI: 10.1039/D1AN01214B
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