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Dynamic Electrochemical Measurement of Chloride Ions
Published on: February 5, 2016
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Development of a selective chloride sensing platform using a screen-printed platinum electrode.
Hugo Cunha-Silva1, M Julia Arcos-Martinez1
1Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain.
Talanta
|January 11, 2019
Summary
A novel voltammetric method uses a platinum electrode for selective chloride determination. This fast, low-cost sensor accurately measures chloride in various samples, including environmental and food matrices.
Area of Science:
- Electrochemistry
- Analytical Chemistry
Background:
- Chloride determination is crucial in environmental, pharmaceutical, and food analysis.
- Existing methods may lack selectivity, speed, or cost-effectiveness.
Purpose of the Study:
- To develop a new, selective, and efficient voltammetric method for chloride determination.
- To utilize a screen-printed platinum electrode (SPPtE) for sensitive anion analysis.
Main Methods:
- A screen-printed platinum electrode (SPPtE) was pretreated and optimized for cathodic stripping voltammetry.
- Chloride anions were oxidized and subsequently adsorbed onto the platinum surface, generating a detectable signal.
Main Results:
- The method demonstrated high selectivity and sensitivity for chloride determination.
- A low limit of detection (0.76 mM) and good reproducibility (RSD < 6%) were achieved.
- The method was successfully applied to real-world samples (environmental, pharmaceutical, food) using minimal sample volume.
Conclusions:
- The proposed voltammetric method offers a simple, rapid, and cost-effective approach for selective chloride analysis.
- The SPPtE serves as a robust platform for electrochemical sensing, adaptable even to flexible formats.
Keywords:
Cathodic stripping voltammetryChlorideFlexible sensorPlatinum electrode surfaceScreen-printed electrodeMore Related Videos
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