| 摘要 |
An antimony electrode for pH measurement is formed with a convex, very smooth tip and sealed within a flexible plastic sheath with just the tip exposed. A reference electrode is provided either separately or in conjunction with the antimony electrode, the reference electrode being sealed within a plastic tube surrounded by an electrolyte. One end of the reference electrode is operatively connected through one end of the tube, to a conductor cable. The other end of the reference electrode terminates spaced internally from the other end of the tube and a plug closes this other end. This plug is formed from a material such as wood, which is saturated with electrolyte that forms an electrolytic connection between the exposed end of the plug of the electrolyte within the tube and hence with the reference electrode in the tube. |
