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Updated: Jun 28, 2026
07:32
Dynamic Electrochemical Measurement of Chloride Ions
Published on: February 5, 2016
A simple differential titrator for automatic potentiometric titration at zero current, with two identical indicator
1Department of Analytical Chemistry, Faculty of Sciences, University of Granada, 18071 Granada, Spain.
Talanta
|September 1, 1992
Summary
A novel differential titrator simplifies potentiometric titrations at zero current using a peristaltic pump and specialized electrodes. This automated system accurately determines halides and sulphide-disulphide mixtures.
Area of Science:
- Analytical Chemistry
- Electrochemistry
Background:
- Potentiometric titration is a key analytical technique.
- Automated systems can improve precision and efficiency.
Purpose of the Study:
- To describe a simple differential titrator for automatic potentiometric titration at zero current.
- To demonstrate its application in determining halides and sulphide-disulphide mixtures.
Main Methods:
- Utilized a microburette connected to a peristaltic pump for autoburetting.
- Employed a closed-flow circuit with two indicator electrodes for differentiation.
- Applied electrodes coated with silver salt for specific ion detection.
Main Results:
- The apparatus successfully performed automatic potentiometric titrations at zero current.
- Accurate determination of halides was achieved.
- Sulphide-disulphide mixtures were effectively analyzed.
Conclusions:
- The described differential titrator offers a simple and effective method for automated potentiometric analysis.
- The system shows promise for the quantitative analysis of various chemical species, including halides and sulphur compounds.
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