Acridine derivative as a 'turn on' probe for selective detection of picric acid via PET deterrence

摘要

A new photoinduced electron transfer (PET) based fluorescent chemosensor for the detection of nitroaromatic compounds (NACs) is reported. The probe ACR-1 exhibited high selectivity and sensitivity for the detection of picric acid (PA) over trivial explosive (NACs) in CH3OH. The binding association constant (K-a) of ACR-1 with PA was obtained to be 1.5 x 10(4) M-1 in CH3OH with a limit of detection (LOD) up to 2.4 x 10(-6) M as a consequence of turn on sensing.