COMPOSITIONS, METHODS AND DEVICES THEREOF FOR FLUORESCENT ANALYSIS OF GUNSHOT RESIDUE

The present disclosure relates to lead ion sensors for testing, detecting and analyzing particle-containing samples for gunshot residue. The lead ion sensors include a fluorophore itself or a combination of a fluorophore and matrix material. The particle-containing samples are contacted with the lead ion sensors. Due to a presence of Pb2+ ions in a sample, a fluorescence emission is visually observed and a correlation of a presence of gunshot residue can be made. In addition, the fluorescence emission intensity can be assessed to obtain information relating to the GSR sample. Further, there is provided a device for conducting on-site testing, detecting and analyzing of particle-containing samples for gunshot residue.