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Electrodes & Probes

Iodide electrodes are potentiometric devices used for the rapid determination of free Iodide ions in food products, plants, and as a detector for titration of iodide with silver nitrate. The electrode functions as a sensor or ionic conductor. The silver iodide pellet is practically insoluble in the test solutions being measured and produces a potential change due to changes in the sample’s ion activity. When the ionic strength of the sample is fixed by the addition of ISA, the voltage is proportional to the concentration of Iodide ions in solution; the electrode follows the Nernst equation.

The iodide ISE is available as a combination version with both indicating half cell and reference half cell or available as an indicating half cell that is used with a separate reference half cell.

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