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Electrocatalytic Determination of Hydroxylamine in the Presence of Thiosulfate in Water and Wastewater Samples Using a Nanostructure Modified Carbon Paste Electrode
Author(s) -
ShabaniNooshabadi Mehdi,
TahernejadJavazmi Fahimeh
Publication year - 2015
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201500046
Subject(s) - detection limit , hydroxylamine , thiosulfate , electrochemical gas sensor , electrode , nanostructure , transmission electron microscopy , materials science , electrochemistry , nanocomposite , nuclear chemistry , nanoparticle , chemistry , inorganic chemistry , nanotechnology , chromatography , organic chemistry , metallurgy , sulfur
In this research, we report the preparation of a high sensitive voltammetric sensor for electrocatalytic determination of hydroxylamine (HX) in the presence of thiosulfate (TS). We describe the synthesis and characterization of CdO nanoparticles (CdO/NPs) with transmission electron microscopy (TEM) and X‐ray diffraction (XRD) methods. At an optimum condition, the two peaks are separated ca. 0.58 and 0.92 V for HX and TS at the surface of the proposed sensor. Square wave voltammetry (SWV) of HX exhibited two linear dynamic ranges with a detection limit (3 σ ) of 0.06 µmol L −1 . The propose sensor was used for determination of HX in water samples.