Device for determining ionic activity

Details Device for determining ionic activity Device for determining ionic activity

G - Physics

01

N

324/23

G01N 27/30 (2006.01)

Patent

CA 1126815

DEVICE FOR DETERMINING IONIC ACTIVITY ABSTRACT OF THE DISCLOSURE A device is disclosed for determining ion activity in liquid solutions by the use of electrodes and a capillary bridge which promotes ionic migration between the electrodes. The bridge is formed of a porous material layer into which liquid solutions are absorbed, a bottom nonporous layer between the elec- trodes and the porous material, and a top nonporous layer on the other side of the porous material. Pre- ferably, the three layers are apertured at each elec- trode to provide wells for receiving drops of liquid solutions, and the top layer is hydrophobic to retain the solution drops in the region of the apertures.

331701

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