Here at Hanna we have a wide variety of both combination ISEs and half-cell ISEs.
Half-cell ion-selective electrodes contain the sensing material of the ion you wish to measure, however, they require a second reference electrode to function. When submerged in a sample, the ions in the sample cause a voltage change that is measured by the sensing electrode. The reference electrode provides a stable voltage for the meter to compare to. The overall reading is based on BOTH the sensing and reference electrodes.
Combination ion-selective electrodes have both the sensing portion and reference portion of an ISE all in one electrode. This can make testing more convenient.
Hanna Instruments Ion Selective Electrodes (ISEs) |
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Image | Electrode | Half-Cell | Combination |
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Ammonia
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--- | HI4101 |
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Bromide | HI4002 | HI4102 |
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Cadmium | HI4003 | |
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Calcium | HI4004 | HI4104 |
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Chloride | HI4007 | HI4107 |
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Cupric | HI4008 | HI4108 |
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Cyanide | HI4009 | HI4109 |
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Fluoride | HI4010 | HI4110 |
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Iodide | HI4011 | HI4111 |
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Lead/Sulfate | HI4012 | HI4112 |
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Nitrate | HI4013 | HI4113 |
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Potassium | HI4014 | HI4114 |
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Silver/Sulfide | HI4015 | HI4115 |
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Reference | HI5315 | --- |