title: Electrocatalytic oxidation of hydroxylamine on glassy carbon electrodes modified by hybrid copper-cobalt hexacyanoferrate films.
abstract: An electrochemical sensor for amperometric detection of hydroxylamine was developed by electrodeposition of hybrid copper-cobalt hexacyanoferrate films on a glassy carbon electrode. The modified electrode could reduce the overpotential of the hydroxylamine oxidation by about 400 mV. This sensor exhibited a linear relationship between the response current and the hydroxylamine concentration in the range of 1.8 x 10(3) M to 4.6 x 10(-6) M with a detection limit of 2.1 x 10(-7) M. Good agreement was obtained between results from the present method and conventional UV-visible spectrophotometry results. The sensor had good recovery, stability and anti-interference ability.
authors.affiliation: Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, P R China. xpcui@mail.ustc.edu.cn
authors.forename: Xingpin
authors.initials: X
authors.lastname: Cui
authors.forename: Li
authors.initials: L
authors.lastname: Hong
authors.forename: Xiangqin
authors.initials: X
authors.lastname: Lin