Development of an ultra-sensitive <i>para</i>-nitrophenol sensor using tri-metallic oxide MoO<sub>2</sub>·Fe<sub>3</sub>O<sub>4</sub>·CuO nanocomposites
Md Abdus Subhan, Pallab Chandra Saha, Jahir Ahmed, Abdullah M. Asiri, Mohammad Al‐Mamun, Mohammed M. Rahman
Abstract
A linear calibration plot (<italic>r</italic><sup>2</sup>: 0.9995) was obtained for 1.0 pM to 1.0 mM solution of para-nitrophenol, with a sensitivity value of 5.2430 μA μM<sup>−1</sup> cm<sup>−2</sup>, remarkably low detection limit (LOD) as 0.2 pM towards MoO<sub>2</sub>·Fe<sub>3</sub>O<sub>4</sub>·CuO/Nafion/GCE sensor for p-NP.
Topics & Concepts
Analytical Chemistry (journal)Detection limitOxideMetalNanocompositeMaterials scienceInorganic chemistryNuclear chemistryChemistryNanotechnologyMetallurgyChromatographyElectrochemical sensors and biosensorsAnalytical Chemistry and SensorsGas Sensing Nanomaterials and Sensors