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Pharmaceutical Analysis
book

Pharmaceutical Analysis

by P. D. Chaithanya Sudha
July 2012
Intermediate to advanced content levelIntermediate to advanced
758 pages
17h 12m
English
Pearson India
Content preview from Pharmaceutical Analysis

Chapter 4

Potentiometry

INTRODUCTION

In 1889, Nernst proposed an equation which states that the electrochemical cell potential is directly proportional to the concentration of the sample solution. In 1906, Cremer explained that the potential difference exists between the reference electrode and the indicator electrode. In 1909, pH electrode is developed for the measurement of the potential. Potentiometry is mainly used to determine the potential or the electromotive force of a sample solution. The potential is directly proportional to the concentration of the ions. The potential difference is determined by the electrochemical cell which is composed of pair of electrodes namely the indicator electrode and the reference electrode.

PRINCIPLE

The ...

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Publisher Resources

ISBN: 9789332515659