2026-05-15T09:50:59Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/82212023-12-20T01:05:21Zcom_10259_4376com_10259_5086com_10259_2604com_10259_4354col_10259_4377col_10259_4355

00925njm 22002777a 4500 dc Revilla Cuesta, Andrea author Abajo Cuadrado, Irene author Medrano, María author Martín Salgado, Mateo author Pecori, Giuditta author Rodríguez Rodríguez, Mª Teresa author Hernando Muñoz, Carla author García Calvo, José author Arcos Martínez, Julia author Torroba Pérez, Tomás author 2023-10 We describe the proof of concept of a portable testing setup for the detection of trinitrotoluene (TNT), a common component in hidden explosive devices. The system allows for field-testing and generation of real-time results to test for TNT traces in surfaces by simply using a filter paper and a fluorescent reporter. In this way, the controlled trapping and detection of the analyte by a chemical sensor gives reliable results at extremely low concentrations of TNT on surfaces under real life conditions suitable for daily use in ordinary sampling for example at airlines luggage storage or sport locker rooms. The reported fluorescent methodology is very sensitive and selective, allowing for the trapping and detection of TNT by a fluorescent reporter to give reliable results at very low concentrations. As a complement, we report the preparation of a modified Sylgard film that is useful under real conditions for qualitative fluorescent detection of hidden traces of TNT on surfaces or fingers by a swab method. The combination of quantitative and qualitative detection of TNT traces on surfaces constitutes a comprehensive new method for the detection of hidden nitroaromatic explosives in the workplace. 1010-6030 http://hdl.handle.net/10259/8221 10.1016/j.jphotochem.2023.114911 2,4,6-Trinitrotoluene Improvised explosive devices Chemical sensors Fluorescent materials Chemical tests Swab alternatives New fluorescent reporters capable of Ultra-sensitively detecting trinitrotoluene on surfaces: A proof-of-concept for finding hidden nitroaromatics in the workroom