Designing and fabrication of novel electrochemical sensor for simultaneous determination of hydroxylamine and phenol

Hydroxylamine, NH2OH, and phenol have received growing attention due to thier extensive application in manufacturing of semiconductors, pharmacologica industry, agriculture, military and industrial fields [1]. Despite these benefits, they are toxic and harmful to humans, animals, and even plants. These substances may cause harmful effects on the central nervous system, heart, liver and kidneys in addition to inhibit a number of cellular enzymes. Also, they are irritant of skin, eyes and mucous membranes [2]. Thus, using of a sensitive analytical method for the simultaneous determination of hydroxylamine and phenol at low concentration is of great importance in biological processing, industrial and environmental fields and pharmacologica industry. So that, in this work, a sensitive voltammetric sensor based on a carbon paste electrode modified with MgO nanoparticle and organic compound as a modifier was designed for determination of hydroxylamine. The modified electrode demonstrated wide linear range from 5.0 to 650.0 μM and low detection limit of 1.65 μM for hydroxylamine. Also, the designed electrode was used to simultaneous determination of hydroxylamin and phenol.

کلیدواژه ها:

modified electrode ، MgO nanoparticle ، hydroxylamine