FeMoO<sub>4</sub>nanospheres-based nanozymatic colorimetry for rapid and sensitive pyrophosphate detection
Haoyu Yang, Zengxu Liu, Chengzhen Liu, Yanan Zhang
Abstract
catalysis. Due to the Fe(II) and PPi reaction, the presence of PPi could specifically restore blue oxidized TMB to colorless TMB, which led to a decrease in UV absorption at 652 nm. The absorbance change is proportional to the PPi concentration, with a linear detection range (from 0.5 to 25 μM) and a low detection limit of 0.3 μM (S/N = 3). Accordingly, its excellent selectivity and high sensitivity made it a potential colorimetric sensor for PPi analysis in actual water samples.
Topics & Concepts
ColorimetryPyrophosphateDetection limitAbsorbanceLinear rangeColorimetric analysisChemistryCatalysisSubstrate (aquarium)SelectivityBiosensorCombinatorial chemistryMaterials scienceChromatographyNanotechnologyBiochemistryEnzymeOceanographyGeologyAdvanced Nanomaterials in CatalysisAdvanced biosensing and bioanalysis techniquesMolecular Sensors and Ion Detection