Definition of Ion selective electrode

1. Noun. (chemistry physics) An electrode whose potential is dependent on the concentration of a specific ion in the solution in which it is immersed. ¹

¹ Source: wiktionary.com

Medical Definition of Ion selective electrode

1. An electrode half cell, with a semi permeable membrane that is permeable only to a single ion. The electrical potential measured between this and a reference half cell (e.g. A calomel electrode) is thus the Nernst potential for the ion. Given that the solution filling the ion selective electrode is known, the activity (rather than concentration) of the ion in the unknown solution can be measured. Commercial ion selective electrodes frequently use a hydrophobic membrane containing an ionophore, such as valinomycin (for potassium) or monensin (for sodium). A pH electrode is made with a thin membrane of pH sensitive (i.e. Proton permeable) glass. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Ion Selective Electrode

ion channels
ion cyclotron emission
ion diode
ion engine
ion engines
ion exchange
ion exchange chromatography
ion exchange resin
ion exchange resins
ion exchanger
ion milling
ion mirror
ion mirrors
ion pump
ion pumps
ion selective electrode
ion transport
ionate
ionene
ionenes
ionic
ionic bond
ionic bonds
ionic charge
ionic coupling
ionic crystal
ionic liquid
ionic liquids
ionic medication
ionic strength

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