Abstract:
Nanocrystalline zeolites of different framework
structures were prepared by the addition of suitable structure directing agents in the synthesis composition of conventional zeolites. Zeolite modified carbon paste electrodes were constructed for the simultaneous determination
of dihydroxybenzene isomers. Nanocrystalline zeolite
Beta modified carbon paste electrode exhibited the highest electrocatalytic activity. Under optimum conditions,
wide linear range was obtained from 150 nM to 400 mM
with lower detection limit of 100, 130, and 100 nM for hydroquinone, catechol, and resorcinol, respectively. The
analytical performance of the proposed sensor was demonstrated in the simultaneous determination of dihydroxybenzene isomers in different environmental water samples.
