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RHE Reversible Hydrogen Electrode
|Wrong potential||Air bubble on the tip of RHE or Double junction chamber||Check the existence of air bubble and retry the electrolysis for removing the air.|
|Leaking hydrogen gas||Check if the tube connection or tubing clamp is loosen or not.
Exchange your electrode for new one, when you find some defect.
|Intrusion of atmosphere||Hydrogen gas may replace the air after a fez days. Please retry electrolysis.|
|Wrong concentration of H+ in the solution||Change the solution to the new one.|
|Unstable potential||Air bubble on the tip of RHE or double junction chamber||Check the existence of air bubble and retry the electrolysis for removing the air.|
|Closed silicone tube||Deterioration of silicone tube||Cut the clogged tube or replace with the new silicone tube.|
|Imperfect removal of inner solution||Surface tension
Dirty inner wall of electrode
|Rinse the inner wall by a portion of ethanol and remove water.|
|Current overflow during electrolysis||Low current limit of potentiostat||Use commercial battery (from 3 V to 5 V) instead of your potentiostat by connecting the minus with your Reversible Hydrogen Electrode (RHE) by holding hydrogen gas up to the level, as shown in the photoon the right.|
|Long time of electrolysis||Low concentration of H+ in the solution||Increase the setting negative electrolysis potential, more negative potencial.|
|Leaking hydrogen gas||Check if the tube connection or tubing clamp is loosen or not.|