The Preparation, Morphological Characterization and Possible Electroanalytical Application of a Hydroxyapatite-Modified Glassy Carbon Electrode

By simple modification of a GC electrode with biofunctional material, hydroxyapatite (HAp), an efficient electroanalytical tool, was designed and constructed. Modification the surface includes two steps in synthesis: electrochemical deposition chemical conversion. The properties, structure, morphology nanosized material formed on absorbability were studied by impedance spectroscopy, Fourier-transform infrared spectroscopy scanning electron microscopy energy-dispersive analysis. Numerous methods this work confirmed that developed method for controlled HAp results open structure uniform morphology, which is capable selective absorption target species. main goal study possibility using HAp-modified fast screening copper, cadmium, lead content honey sugar samples. behavior potential determination heavy metals HAp/GC cyclic voltammetry square wave anodic stripping voltammetry. exhibited great performance metals, based reduction because high film properties GC. A linear response between 10 1000 μg/L Cu Pb 1 100 Cd, estimated detection limit 2.0, 10.0, 0.9 μg/L, respectively, obtained.