18. ISFET Electrode and The Principle
ISFET (Ion Selective Field Effect Transistor) is a quite unique pH sensor. By applying various kinds of sensing membrane, this product even functions as diverse potentiometric sensors.
Typical Modifications of ISFET Electrode
1. Hydrogen peroxide measurement at high rates
2. Sodium ion measurement
Capable to sense sodium ion by applying Na+ - ionophore
to the gate region
3. Bio-sensor
Capable to measure organic acid by fixing the lipoprotein lipase (LPL) with glutaric aldehyde to the gate region
The Principle of Sensing pH Value
Its ion-selective gate membrane consists of SiO2 - Ta2O5, on which interface potential ("E") generates according to the quantity of hydrogen ion (proton). Thus this product is able to measure pH value.
Related product : 010365 ISFET mV/pH Meter
| Catalogue No. | Description |
| 012070 | ISFET pH sensor |
