A novel selenium nanoparticles-enhanced chemiluminescence system for determination of dinitrobutylphenol

► Development of a novel Se NPs-amplified CL reaction for determination of DNBP. ► Enhancement of light emission from KMnO4DNBPHCl CL system by Se NPs. ► Effect of Se NPs is so appreciable in terms of time evolution of CL. ► Se NPs were prepared by the hydrothermal method and display high catalytic properties. ► Appropriate sensitivity, selectivity were notable features of the proposed method.