Rapid electrochemical recognition of trimethoprim in human urine samples using new modified electrodes (CPE/Ag/Au NPs) analysing tunable electrode properties: experimental and theoretical studies
Eduardo Daniel Tecuapa-Flores, José Alberto Hernández, Pedro Roquero, Jesús Arenas‐Alatorre, Pandiyan Thangarasu
Abstract
for CPE/Ag NPs, CPE/Au NPs, and CPE/Ag/Au NPs, respectively. In contrast, unmodified CPE was unable to detect TMP due to the lack of efficiency. The developed technique shows excellent electrochemical recovery of 92.3 and 97.1% in the urine sample. Density functional theory (DFT) was used to explain the impact of the metallic center in graphite through density of states (DOS).
Topics & Concepts
ElectrodeDetection limitMaterials scienceElectrochemistrySilver nanoparticleSurface plasmon resonanceCarbon paste electrodeCharge transfer coefficientNuclear chemistryNanoparticleAnalytical Chemistry (journal)Cyclic voltammetryNanotechnologyChemistryChromatographyPhysical chemistryElectrochemical Analysis and ApplicationsAdvanced biosensing and bioanalysis techniquesElectrochemical sensors and biosensors