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) |
|||
Image | Electrode | Half-Cell | Combination |
Ammonia
|
--- | HI4101 | |
Bromide | HI4002 | HI4102 | |
Cadmium | HI4003 | ||
Calcium | HI4004 | HI4104 | |
Chloride | HI4007 | HI4107 | |
Cupric | HI4008 | HI4108 | |
Cyanide | HI4009 | HI4109 | |
Fluoride | HI4010 | HI4110 | |
Iodide | HI4011 | HI4111 | |
Lead/Sulfate | HI4012 | HI4112 | |
Nitrate | HI4013 | HI4113 | |
Potassium | HI4014 | HI4114 | |
Silver/Sulfide | HI4015 | HI4115 | |
Reference | HI5315 | --- |