PH electrodes are constructed from a special composition glass, which senses the hydrogen ion concentration. This glass is typically composed of alkali metal ions. The alkali metal ions of the glass and the hydrogen ions in solution undergo an ion exchange reaction, generating a potential difference. There are actually two electrodes in one body. One portion is called the measuring electrode, the other the reference electrode. The potential generated at the junction site of the measuring portion is due to the free hydrogen ions present in solution.
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Sensorex |
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C L R Srl specializes in designing and manufacturing sensors & instruments for electrochemical analysis. Our pH, ORP, ISE products include simple and combined electrodes for the measure of pH & ORP, m
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