Colorimetric and ratiometric fluorescent chemodosimeter for the detection of hydrazine via the Ing-Manske reaction in solution as well as in the gaseous state: An experimental and computational investigation

Abstract

A new and simple fluoranthene-phthalimide conjugate (FP) was synthesized, and employed as a highly efficient hydrazine chemodosimeter in organo-aqueous solution. Based on the Ing-Manske reaction, the chemodosimeter FP showed a fast colorimetric and ratiometric fluorescent response for hydrazine with high sensitivity and selectivity over other competing analytes. The chemodosimeters detection limit for N2H4 was estimated to be 4.27 µM. Theoretical calculations were also executed to validate the experimental findings. Furthermore, the test strips and cotton swab made from the chemodosimeter FP are capable of enabling the quick and easy detection of N2H4 solution and vapour, respectively.