What are the application of amperometric titration?

A simple apparatus, readily assembled, is described, allowing the rapid and precise determination of chloride, bromide, and iodide individually in mixtures by means of the rotating platinum electrode. Several examples of the application of this technique to pharmaceutical products are given.

What is the principle of amperometric titration?

In Amperometric titration the potential applied between the indicator electrode (dropping mercury electrode) and the appropriate depolarizing reference electrode (saturated calomel electrode) is kept constant and current through the electrolytic cell is then measured on the addition of each increment of titrating …

What is the principle and application of Amperometry?

Amperometry involves the measurements of currents at constant voltage applied at the dropping mercury electrode. The value of electrode potential is chosen in such a way that only the metal ion is reduced. This method is generally used for the determination of metal ion present in aqueous solution.

What is electro reducible ion?

Health & Medicine. Jun. 18, 2018. 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.

Which is an example of an Amperometric titration?

AMPEROMETRIC TITRATIONS 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.

How big is an Amperometric titration glass tube?

Amperometric titration can be carried out with a rotating platinum electrode (See Fig.). It consist of a glass tube of length 15 – 20 cm in length and 6 mm in diameter. The platinum wire extends 5-10 mm from the wall of glass tubing.

Which is the last point of a titration?

The diffusion current at a suitable applied voltage is measured as a function of the volume of the titrating solution. The last point is the intersection of two lines giving the change of current before and after the equivalence point. Table: Examples of amperometric titrations

Can a titration be performed at a fixed potential?

The titration can be performed at fixed potential -0.8 Volt v/s saturated calomel electrode. As titration is proceeds concentration of Pb+2 ion decreases and diffusion current also decreases till it becomes minimum at equivalence point. The diffusion current remains constant beyond end point.