February 23, 2024

Silver chloride electrode in Potentiometry analysis

Silver chloride electrode in Potentiometry analysis

A silver chloride electrode (Ag/AgCl electrode) is commonly used as a reference electrode in potentiometric analysis. Potentiometry is a technique that measures the potential difference between two electrodes in an electrochemical cell, and the Ag/AgCl electrode serves as a stable reference electrode with a known potential.

The Ag/AgCl electrode consists of a silver wire coated with silver chloride, which is immersed in a solution containing a known concentration of potassium chloride (KCl). The KCl solution helps maintain a stable potential at the surface of the electrode, preventing changes in potential due to changes in the electrolyte concentration.

During potentiometric analysis, the Ag/AgCl electrode is used as a reference electrode, while a working electrode is used to measure the potential difference between the two electrodes. The working electrode can be an ion-selective electrode or a non-selective electrode, depending on the specific application.

One of the advantages of using the Ag/AgCl electrode as a reference electrode is its stable and reproducible potential. This allows for accurate and precise measurements in potentiometric analysis. However, the electrode can be sensitive to light and can produce a potential drift if it is not properly maintained. It is important to store and handle the electrode correctly to ensure accurate and consistent results.

First Year B Pharm Notes, Syllabus, Books, PDF Subjectwise/Topicwise

F Y B Pharm Sem-IF Y B Pharm Sem-II
BP101T Human Anatomy and Physiology I TheoryBP201T Human Anatomy and Physiology II – Theory
BP102T Pharmaceutical Analysis I TheoryBP202T Pharmaceutical Organic Chemistry I Theory
BP103T Pharmaceutics I TheoryBP203T Biochemistry – Theory
BP104T Pharmaceutical Inorganic Chemistry TheoryBP204T Pathophysiology – Theory
BP105T Communication skills TheoryBP205T Computer Applications in Pharmacy Theory
BP106RBT Remedial BiologyBP206T Environmental sciences – Theory
BP106RMT Remedial Mathematics TheoryBP207P Human Anatomy and Physiology II Practical
BP107P Human Anatomy and Physiology PracticalBP208P Pharmaceutical Organic Chemistry I Practical
BP108P Pharmaceutical Analysis I PracticalBP209P Biochemistry Practical
BP109P Pharmaceutics I PracticalBP210P Computer Applications in Pharmacy Practical
BP110P Pharmaceutical Inorganic Chemistry Practical
BP111P Communication skills Practical
BP112RBP Remedial Biology Practical

Suggested readings: