What is meant by Amperometry?
Definition of amperometric : relating to or being a chemical titration in which the measurement of the electric current flowing under an applied potential difference between two electrodes in a solution is used for detecting the end point.
Which best describes amperometry?
Amperometry in chemistry is detection of ions in a solution based on electric current or changes in electric current. Amperometry is used in electrophysiology to study vesicle release events using a carbon fiber electrode. Another technique used to measure vesicle release is capacitive measurements.
What is the principle of Amperometry?
Principle The principle is that ,the potential applied between polarizable and non-polarizable electrode is kept constant and the diffusion current is measured during the titration. During the titration the concentration of electo reducible ion change and hence the diffusion current also change.
What is measured in Amperometry and Amperometric titration?
Amperometry refers to the measurement of current under a constant applied voltage and under these conditions it is the concentration of analyte which determine the magnitude of current. Otherwise called as Polarographic or polarometric titrations. …
What is the basic principle of titration?
The basic principle of the titration is the following: A solution – a so called titrant or standard solution – is added to sample to be analyzed. The titrant contains a known concentration of a chemical which reacts with the substance to be determined. The titrant is added by means of a burette.
What are the limitations of amperometry?
Among the limitations of amperometric biosensors is the interface produced between the enzyme and the electrical contact, generating a slow biocatalysis and, as a result, a low amperometric response related to the redox bioelectrocatalysis of the analyte-substrate.