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Monday, September 17, 2018

pH Meter Electrode Maintenance

The reference electrode in one unit and combine electrode is a combination of a glass electrode.
Preparation for use
Gradually shake the electrode to make sure that the internal solution covers the entire membrane and there are no air bubbles are interrupted. Immerse the glass bulb in 4.00 pH buffer for overnight and wash the bulb with distilled water several times before use. A white base Cap is accommodated for the gel-filled joined electrode and the unbreakable electrode, which should be gradually removed. This cap is loaded up with saturated KCL to prepare the electrode for use.
Maintenance
The electrode should be washed with distilled water every time and never use ordinary tap water. Wipe the electrodes with tissue paper to remove water droplets or any other sample solution. In the long-term storage conditions, the outer surface of the bulb can be dry, to reuse, the electrode should be soaked in 4.00 pH buffer solution for 24 hours. The electrode which neglects to react to the above treatment, immerse the electrode in 10 N HCl for two hours and washed with distilled water this can be activated by the electrode and gives fast responses. For long-time storage of gel-filled electrode immerses in saturated KCL solution, So that bulb and gels cannot be dry and it can be used without soaking.
Precautions
Make use of electrodes within the pH and temperature range, Beyond the limit can cause permanent damage of electrodes.



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