Glass Electrode - Types

Types

Almost all commercial electrodes respond to single charged ions, like H+, Na+, Ag+. The most common glass electrode is the pH-electrode. Only a few chalcogenide glass electrodes are sensitive to double-charged ions, like Pb2+, Cd2+ and some others.

There are two main glass-forming systems:

  • silicate matrix based on molecular network of silicon dioxide (SiO2) with additions of other metal oxides, such as Na, K, Li, Al, B, Ca, etc.
  • chalcogenide matrix based on molecular network of AsS, AsSe, AsTe.

Read more about this topic:  Glass Electrode

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