| 摘要 |
Ionic concentration in a solution is measured using a multiple membrane electrode potential amplification device. The apparatus includes a plurality of potential sensing membranes and reference elements. Preferably at least four of the membranes and associated elements are all connected in electrical series relationship and joined to the terminals of a potential measuring meter such that the potential read out by the meter is equal to the sum of all of the individual membrane potentials. Amplification of the electrode potential is obtained by virtue of the fact that the individual membranes function as capacitors in a series circuit with the potential measuring meter. The membranes may be placed in separate sample containing vessels, or a unitary test device may be provided having individual compartments for the test solution.
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