Uploaded November 2024 | Updated September 2026, 2 days ago
#phmeter #diy #antimony
In this video, I show you how to build a simple and inexpensive antimony pH meter. It is especially interesting for me because, unlike the standard glass electrode, it can be miniaturized for a lab-on-a-chip. However, the response is slower and less sensitive to low pH values. It is also susceptible to chemical corrosion. For cost reasons, I chose a copper-copper(II) sulfate electrode instead of the usual silver chloride electrode. As the cell has a low internal resistance, no BNC plug, socket, or shielded cable is required.
Further links:
en.wikipedia.org/wiki/Antimony_electrode
en.wikipedia.org/wiki/Copper%E2%80%93copper(II)_sulfate_electrode
en.wikipedia.org/wiki/Standard_electrode_potential_(data_page)
ajol.info/index.php/ajce/article/view/191420
#phmeter #diy #antimony
In this video, I show you how to build a simple and inexpensive antimony pH meter. It is especially interesting for me because, unlike the standard glass electrode, it can be miniaturized for a lab-on-a-chip. However, the response is slower and less sensitive to low pH values. It is also susceptible to chemical corrosion. For cost reasons, I chose a copper-copper(II) sulfate electrode instead of the usual silver chloride electrode. As the cell has a low internal resistance, no BNC plug, socket, or shielded cable is required.
Further links:
en.wikipedia.org/wiki/Antimony_electrode
en.wikipedia.org/wiki/Copper%E2%80%93copper(II)_sulfate_electrode
en.wikipedia.org/wiki/Standard_electrode_potential_(data_page)
ajol.info/index.php/ajce/article/view/191420
