There are some papers about the role of other pesticides (as organophosphorous pesticides) in the luminol reaction [25] and [26], producing a similar effect that this one observed in our study, but as far as we know, the role of the carbamates in this reaction has not been studied in deep. Nevertheless, based on the discussions proposed in the literature for these CL direct systems using luminol, and considering our previous studies of the reaction using different oxidants, a possible mechanism of present reaction could be as follows: carbofuran is firstly oxidized by permanganate, to produce an intermediate which could subsequently oxidized luminol to form the excited state 3-aminophthalate anion; finally this excited anion decayed to the ground state and produce CL.