Design and explain briefly the equivalent circuit of glass pH Electrode.
Understand the Problem
The question is asking us to design an equivalent circuit for a glass pH electrode and provide a brief explanation of its components and functionality.
Answer
High impedance source, internal reference electrode, external reference electrode, solution.
The equivalent circuit of a glass pH electrode consists of a high impedance source (glass membrane), an internal reference electrode (usually silver/silver chloride), an external reference electrode, and the solution to be measured, acting as a whole in a potentiometric setup.
Answer for screen readers
The equivalent circuit of a glass pH electrode consists of a high impedance source (glass membrane), an internal reference electrode (usually silver/silver chloride), an external reference electrode, and the solution to be measured, acting as a whole in a potentiometric setup.
More Information
The glass pH electrode measures the potential difference between the internal and external reference electrodes, which correlates to the hydrogen ion activity (pH) in the solution. This setup allows precise measurement of the pH level.
Tips
A common mistake is to neglect the high impedance nature of the glass membrane, which requires high impedance input circuitry for accurate measurement.
Sources
- How a Glass pH Electrode Works - pHionics - phionics.com
- What is the equivalent circuit for a PH sensor? - Quora - quora.com
- pH Electrodes - Chemistry LibreTexts - chem.libretexts.org
AI-generated content may contain errors. Please verify critical information
