New fluorescent reporters capable of Ultra-sensitively detecting trinitrotoluene on surfaces: A proof-of-concept for finding hidden nitroaromatics in the workroom

•A portable testing setup for the detection of trinitrotoluene traces in surfaces by simply using a filter paper and a fluorescent reporter in solution with extreme sensitivity.•A modified Sylgard film useful under real conditions for qualitative fluorescent detection of hidden traces of trinitrotoluene on surfaces or fingers by a swab method.•A combination of quantitative and qualitative detection of trinitrotoluene traces on surfaces as a comprehensive new method for the detection of hidden nitroaromatic explosives in the workplace.