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Updated: Jun 28, 2026
07:32
Dynamic Electrochemical Measurement of Chloride Ions
Published on: February 5, 2016
A chlorate ion-selective electrode based on a poly(vinyl chloride)-matrix membrane
K Hiiro1, G J Moody, J D Thomas
1Chemistry Department, UWIST, Cardiff CF1 3NU, WalesU.K.
Talanta
|October 1, 1975
Summary
A new PVC membrane electrode was developed for sensitive chlorate ion detection. This electrode offers rapid response times and a lower detection limit compared to existing nitrate electrodes.
Area of Science:
- Analytical Chemistry
- Electrochemistry
- Ion-Selective Electrodes
Background:
- Accurate determination of chlorate ions is crucial in various environmental and industrial applications.
- Existing methods for chlorate determination, such as those using nitrate electrodes, may lack optimal sensitivity or response speed.
Purpose of the Study:
- To develop and characterize a novel PVC membrane electrode specifically designed for the selective and sensitive detection of chlorate ions.
- To evaluate the performance of the new electrode in terms of response time and limit of detection.
Main Methods:
- Preparation of a PVC membrane incorporating a Corning 477316 liquid ion-exchanger in the chlorate form.
- Electrochemical measurements to assess the electrode's response to chlorate ions.
- Determination of selectivity coefficients against interfering ions.
Main Results:
- The developed electrode exhibits a rapid response time, typically within 1-2 seconds.
- A low limit of detection for chlorate ions was achieved, measured at 3 x 10(-5)M.
- Selectivity coefficients were determined, indicating the electrode's specificity towards chlorate ions over other common ions.
Conclusions:
- The novel PVC membrane electrode provides a promising tool for rapid and sensitive chlorate ion determination.
- The electrode's performance surpasses that of traditional nitrate electrodes for chlorate analysis.
- Further studies can explore its application in real-world sample matrices.
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