Application of novel voltammetric nano-sensor bas ed on ca rbon nan otubes paste electrode det erminatio n of hydr oxylami ne

The qu antitative determination of hydroxylamine is very important both in st udies of biological process es and for industrial pu rposes. It as been confirmed tha t hydroxylamine is produc ed during th e reduction of nitrates by E. coli and Torula yeast [۱].Phenol is one of the environm ental pollutants. Phen ol and its v apors are co rrosive to the eyes, the ski n, and the respiratory tract [۲]. Therefore, determination of this compound is very importa nt.Carbon nanotubes (CNTs) are currently in the fo refront of materials research. T hey are recognized as a ne w class of materials that have h ad a profound impact on a wide range of applications [۳].As yet, based on our knowledge, n o paper has been r eported on the simultaneous determination of HX pulse PL using electrochem ical metho ds. In the present work, we describe preparation of a ne w electrod e compose d of multiwall carbo n nanotubes paste electro de modified with p-chloranil and investigat e its performance for the electrocatalytic determination of H X in aqueous solutions. We also evaluate th e analytical performan ce of the modifie d electrode for simulta neous determination o f HX and P L.

کلیدواژه ها:

Volt ammetry ، E lectrochem ical investigation ، Hydroxylami ne ، Phenol ، Carbon nanotu bes ، p-Chloranil