neutral-carrier ion-selective electrode
Quick Summary
A neutral-carrier ion-selective electrode is a type of potentiometric indicator electrode that preferentially responds to a single chemical species. These electrodes are designed to interact selectively with a specific ion in a solution, allowing for its measurement. They typically consist of an internal reference electrode, a reference solution, and a membrane that separates the analyte solution from the reference components.1
The selectivity of these electrodes arises from the specific interaction between the membrane and the target ion. Neutral-carrier electrodes, a subtype of ion-selective electrodes, use a complexing agent within the membrane to selectively bind with the analyte ion, drawing it into the membrane. This selective binding allows the electrode's potential to vary with the concentration or activity of that particular ion, distinguishing it from other species present in the solution.1
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