Mohdokht Arjomand kermani
Abstract
Addressed herein, a two-component transition metal oxide nanocomposite, nickle/cobalt oxide, was synthesized via a hydrothermal method and characterized by X-ray diffraction and scanning electron microscopy. This material was then utilized to modify a pencil graphite electrode. The resulting sensor demonstrated ...
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Addressed herein, a two-component transition metal oxide nanocomposite, nickle/cobalt oxide, was synthesized via a hydrothermal method and characterized by X-ray diffraction and scanning electron microscopy. This material was then utilized to modify a pencil graphite electrode. The resulting sensor demonstrated exceptional performance and stability in detecting trace amounts of an organophosphorus pesticide residues present in several real samples. Using the as-prepared martial hybridized with graphene oxide pencil electrode, a broad linear concentration range(40-480nM) and an extremely low detection limit (21nM) were successfully achieved. Also, the fabricated low-cost sensor showed good reproducibility and stability for analysis of chlorpyrifos.Keywords: Organophosphorus pesticide, Electrocatalyst, Sensor, Pencil electrode
