Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device
Patent
1980-09-03
1983-08-02
Tokar, Michael J.
Electricity: measuring and testing
Electrolyte properties
Using a conductivity determining device
204435, G01N 2728
Patent
active
RE0313335
ABSTRACT:
An electrochemical reference cell has a reference electrode disposed at one end of a rigid hollow cylinder immersed in an electrolyte solution of known concentration. Different interlocking series of plugs, consisting of a material such as wood, with semipermeable, longitudinally extending capillaries, are fitted together in abutting relation to fill the hollow interior of the cylinder between the reference cell and the other end with one series longitudinally overlapping the other. The abutting end surfaces of adjacent plugs in each series are sealed to close off the capillary path between successive plugs, whereas the outer surface of the last plug in at least one series is left unsealed to be in contact with the test solution, so that circuitious ion transfer path is established between the reference cell and the test solution that passes tranversely through the longitudinal semipermeable capillary walls from the plugs in one series through adjacent plugs in the other.
REFERENCES:
patent: 3281348 (1966-10-01), Schumacher
patent: 3440525 (1969-04-01), Cardeiro
patent: 3666652 (1972-05-01), Krauer et al.
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