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Potentiometry1 for mpharm ist sem notes
The document summarizes potentiometry and potentiometric titrations. Potentiometry uses measurement of electrical potential to perform qualitative and quantitative analysis. The potential of a sample is directly proportional to the activity of electroactive ions present, such as pH. Potentiometric titrations involve direct measurement of electrode potential or changes in potential upon titrant addition to determine the endpoint. Common types include acid-base, redox, complexometric, and precipitation titrations. Choice of reference and indicator electrodes depends on the reaction taking place.
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Introduction to Potentiometry, an electrical analysis method, presented with seminar details.
Potentiometry is based on the Nernst equation connecting electrode potential with ion concentration.
Overview of different electrode types including Reference and Indicator electrodes with their constructions.Characteristics and types of indicator electrodes, focusing on Hydrogen and Quinhydrone electrodes.
Structure and properties of glass membrane electrodes used for pH measurement, along with advantages and disadvantages.
Explanation of potentiometric titration methods, including endpoint detection using reference and indicator electrodes.
Various types including Acid-Base, Redox, Complexometric, Precipitation, Diazotisation, and Non-Aqueous titrations.
Acid-base titration process described through neutralization reactions and titration curve representation.
Redox titrations involving oxidation-reduction reactions, with emphasis on standard potentials and equivalence points.
Complexometric titrations, focusing on the use of EDTA and metal ion complex formation.
Mechanics of precipitation titrations, factors for successful endpoint determination based on solubility.
Procedure for detecting diazonium salts in drug compounds via potentiometric titrations.
Description of titrations performed in non-aqueous media for weak acids and bases.
Techniques to determine titration endpoints including various graphical methods.
Diverse applications of potentiometry in health, pollution, and pharmaceutical measurements.
Citations of sources used in the seminar topic and a closing thank you.