<原著>濃度の異なる溶液間の電橋にろ紙を用いたときに発生する電位差

概要

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This study investigated how the magnitude of potential differences between two solutions containing different concentrations of electrolytes is affected by the type of filter paper used as bridge between the two solutions The following results were obtained. (1) Potential differences were obtained with filter paper as the bridge between two solutions with different concentrations of electrolyte. The potential difference was comparable to the bias voltage in the circuit. The mechanism of generation of the potential difference was attributed to the concentration cell. It is suggested that filter paper acts as a semipermeable membrane similar to the living cell membrane or an ion electrode membrane. (2) There was no significant potential difference with agar drum (dissolved with saline) as the bridge. This result appears to be a result of an absence of ion transfer with in the agar drum. (3) The magnitude of the potential difference varied with the type of filter paper used for the bridge. Variations in the magnitude may be attributed to differences in ionic transfer in filter paper. (4) There were potential differences between resting and stimulated saliva, and between saliva and physiological saline. It is considered that fluids such as resting and stimulated saliva, and physiological saline act as electrical generators.
北海道医療大学の論文
1995-06-30