A miniaturised electrochemical sensor integrating a molecularly imprinted silica/graphene oxide hybrid with non-equilibrium pulse amperometry for the fast quantification of free and bound toxins.

in this article electrochemical determination of captopril at the surface of the platinum coated nanoporous gold film (ptnpgf) electrode is reported using the cyclic voltammetry and amperometry. for the preparation of ptnpgf, the surface of npgf electrode was covered with cu layer using underpotential electrochemical deposition (upd).afterward, the copper layer is replaced with platinum ions vi...

Neurons release neurotransmitters in a process called exocytosis, wherein packets of transmitter molecules are released from the cells upon stimulation. Adrenal chromaffin cells, which also undergo exocytosis, constitute a model system for neuronal release. Quantal release of adrenaline from chromaffin cells can be measured using the electrochemical technique of amperometry, historically employ...

in the present study, silver oxyfluoride modified silver electrode was employed to electrocatalytic oxidation of isoniazid. the process of oxidation and its kinetics were established by using cyclic voltammetry, chronoamperometry and amperometry techniques. the modified electrode shows a stable and linear response in the concentration range of 3×10−4 to 2.1×10−3 mol l-1 with a correlation coeff...

In this article electrochemical determination of captopril at the surface of the platinum coated nanoporous gold film (PtNPGF) electrode is reported using the cyclic voltammetry and amperometry. For the preparation of PtNPGF, the surface of NPGF electrode was covered with Cu layer using underpotential electrochemical deposition (UPD).Afterward, the copper layer is replaced with platinum ions vi...

a thin film of epinephrine (ep) was electrochemically deposited on the surface of glassy carbon electrode previously activated in nahco3 solution. the cyclic voltammograms of the modified electrode indicate that the surface confined ep are strongly dependent on the solution ph, as expected for quinone/hydroquinone functionalities. the ep-modified glassy carbon electrode exhibited catalytic acti...

Alveoli-Like Multifunctional Scaffolds A metal-organic framework and gold nanoparticles in a porous backbone organize novel alveolilike multifunctional scaffold. It allows for label-free detection real-time monitoring of the cellular behaviors under toxic-conditions via redox-active amperometry nanospectroscopy. More details can be found article number 2301395 by Seonghyeon Eom, So Yeon Lee, Ju...

INTRODUCTION Pulsed amperometry is a powerful detection method for carbohydrates that requires no sample derivatization. Pulsed amperometric detection (PAD) is particularly useful in combination with high-performance anion-exchange chromatography (HPAE). For a full description of HPAEPAD, refer to Dionex Technical Note 20. For an introduction to amperometry refer to Conductivity and Amperometry...