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Updated: Feb 16, 2026
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Multi-analyte Biochip MAB Based on All-solid-state Ion-selective Electrodes ASSISE for Physiological Research
Published on: April 18, 2013
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Potentiometric electrodes for total dissolved solids: Universal ion response from crosslinked polymer membranes
Ye Zhang1, Yu Cheng2, Dajing Yuan1
1Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, China.
Talanta
|February 14, 2026
Summary
New membrane electrodes offer a cost-effective and rapid method for measuring total dissolved solids (TDS) in water. This potentiometric approach provides a reliable alternative to traditional conductivity-based TDS assessments.
Area of Science:
- Electrochemistry
- Materials Science
- Environmental Science
Background:
- Total dissolved solids (TDS) are crucial for water quality assessment.
- Conventional TDS estimation using conductivity is susceptible to temperature and ionic composition biases.
Purpose of the Study:
- To develop novel potentiometric all-crosslinked membrane electrodes for direct TDS assessment.
- To evaluate the sensitivity and performance of these electrodes in various water samples.
Main Methods:
- Fabrication of ion-sensitive electrodes using epoxy-amine and thiol-ene click polymerization.
- Potentiometric measurements to assess electrode response to cations and anions.
- Correlation analysis between electrode potential and logarithmic TDS in freshwater samples.
Main Results:
- Electrodes exhibited high sensitivity to common cations and anions across a wide concentration range (0.1 - 100 mM).
- An excellent linear correlation was observed between electrode open circuit potential and logarithmic TDS.
- The developed electrodes demonstrated advantages such as low cost, ease of operation, and rapid response.
Conclusions:
- Potentiometric membrane electrodes offer a viable and convenient alternative to conductivity-based TDS measurements.
- This technology provides reliable TDS assessment for diverse water matrices.
- The novel electrodes facilitate improved water quality monitoring.
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