Notes for use of chloride ion electrode

Notes for use of chloride ion electrode

1. Before use, soak in 10-3M sodium chloride solution for activation for 1 hour. Then wash with deionized water until the blank potential value is about + 300mV.

2. The reference electrode is Ag / AgCl type double liquid connection reference. The upper salt bridge is filled with 3.3MKCI (reinforcement silver chloride saturation) and the lower salt bridge is filled with 0.1M sodium nitrate. In order to prevent the reference solution from leaking too fast, please seal the filling port with adhesive tape after adding the solution each time.

3. The electrode shall prevent the diaphragm from being scratched or contaminated. It  shall not be used for a long time in high concentration chloride ion solution to avoid electrode membrane corrosion. If the sensitive film surface is worn or contaminated, it shall be polished on the polishing machine to update the sensitive surface.

4. After use, it shall be cleaned to the blank potential value, dried with filter paper and stored away from light.

5. The conductor shall be kept dry.