Electrochemical Studies of Nanoflakes like ZnMnO₃ Perovskites for the Determination of Priority Organic Pollutant N-hydroxysuccinimide

Abstract

Surfactant assisted co-precipitation method for preparing ZnMnO3 perovskites. The as-synthesized nanoflakes are well characterized by using numerous microscopic and spectroscopic methods which confirmed that ZnMnO3 has high crystalline nature and desired functional groups with nanoflake-like morphology. The synthesized ZnMnO3 were fabricated as the electrode material to determine biologically important as well as priority organic pollutant N-hydroxysuccinimide (NHS). The improved sensing performance of ZnMnO3 towards NHS with outstanding sensitivity, and selectivity in the presence of a 50-fold excess concentration of metal ions and amino acids. The NHS sensor at ZnMnO3/GCE exhibits wide dynamics ranging from 0.01 to 530.6 µM with a superior detection limit of 0.04 µM. Furthermore, the proposed sensor has utilized by practical applicability of NHS detection in the spiked urine samples that achieved better recoveries.


Cerium Zirconium Oxide-Decorated Reduced Graphene Oxide Nanocomposite for Low Potential Voltammetric Detection of N-Hydroxysuccinimide

“…Under optimized experimental conditions, various metal ions (NH 4 + , Mg 2+ , and Na + ), anions (Cl − and SO 4 − ), and biomolecules such as leucine (Leu), methionine (Met), glucose (Glu), and histidine (His) were employed to assess their potential interference at CZO/rGO/GCE for the electrochemical determination of NHS. 58 The DPV curve of 150 μM NHS was examined in the presence of a 5-fold excess of other interfering compounds. Remarkably, the presence of foreign compounds did not affect the anodic peak current response of the NHS.…”

“…The CZO/rGO-modified GCE sensor exhibited substantial potential for real-time sensing, as evidenced by the enhanced recovery results. 7 CA 5−10 10.9 CPV 11 PtNPs/POM/2D-hBN pH = 8.0 0.1−300 0.06 river water ITO 57 GNs/Cys/CdTe PBS, pH = 6.0 CV 0.2 graph juice GCE 58 ZnMnO 3 PBS, pH = 7.0 DPV 0.01−530.6 0.04 urine GCE [present work] CZO/rGO PBS, pH = 7.0 DPV 0.09−996 0.045 river water a NF-nickel foil, ITO-indium tin oxide, GCE-glassy carbon electrode, BDD-boron-doped diamond, LOD-limit of detection, CV-cyclic voltammetry, DPV-differential pulse voltammetry, Mn 2 O 3 −NSs/Ni-manganese(III) oxide nanosheets, PtNPs/POM/2D-hBN-platinum nanoparticle/ polyoxometalate/two-dimensional hexagonal boron nitride nanosheets, GNs/Cys/CdTe-graphene nanosheets/L-cysteine/cadmium telluride quantum dot, and ZnMnO 3 -zinc manganese oxide.…”