Tough lanthanide luminescent hydrogel for nitroaromatics detection

Preparation of a Tetra-Imidazolium Salt and Sensing for p-Dinitrobenzene

“…The detection of nitroaromatics in recent years has attracted extensive attention because these types of compounds are explosive, posing a threat to public safety. − Compared with traditional detection methods (such as LC–MS, GC–MS, and HPLC), − the fluorescence method has some advantages, such as high sensitivity, speediness, and easy operation. − Among these chemosensors, the forces acting between the host and guest are mostly hydrogen bonds (such as N–H···O, O–H···O, and C–H···O). Hence, it is a meaningful work to design and synthesize hosts with active hydrogen atoms.…”