Maintenance of Reference Electrodes

The most significant problem is that reference electrodes must be stored between the measurements very carefully so that they cannot dry out. It is recommended that the refilling necks and the diaphragm be closed with a plastic cap. It is also recommended that the reference electrode be stored in the reference electrolyte solution, as is possible for some commercially available electrodes (see Fig. III.2.8). 

It is very important to check the reference electrode potential from time to time to exclude erroneous measurements. Normally, the potentials of reference 

Ives DJG, Janz GJ (1961) Reference electrodes, theory and practice. Academic Press, New York 

Mroz A, Borchardt M, Dukmann C, Cammann K, Knoll M, Dumschat C (1998) Analyst 123 1373 

Suzuki H, Hirakawa T, Sasaki S, Karube I, (1998) Sens Actuators B 46 146 

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