Sweetsop-like α-Fe<sub>2</sub>O<sub>3</sub>@CoNi catalyst with superior peroxidase-like activity for sensitive and selective detection of hydroquinone
Min Feng, Shaohua Wen, Xiaofang Chen, Die Deng, Xiupei Yang, Run Zhang
Abstract
to produce hydroxyl (˙OH), leading to the oxidization of colorless 3,3',5,5'-tetramethylbenzidine (TMB) to blue oxTMB. In the presence of HQ, the blue oxTMB is reduced to colorless, which allows for colorimetric detection of HQ in water samples. This method has been validated by detecting HQ in water samples with high selectivity, rapid response, broad detection range (0.50 to 30 μM), and low detection limit (0.16 μM).
Topics & Concepts
HydroquinonePeroxidaseCatalysisChemistryCombinatorial chemistryOrganic chemistryEnzymeAdvanced Nanomaterials in CatalysisElectrochemical sensors and biosensorsAdvanced biosensing and bioanalysis techniques