Inicio Producto Electrodo selectivo de iones

Electrodo selectivo de iones

The Ion-Selective Electrode (ISE) Online Sensor is a probe-type intelligent sensor. It features compensation for temperature, pH, and interfering ions, and adopts an RS485 interface with standard Modbus protocol. The sensor enables in-situ measurement without the need for reagents or sample pre-treatment, offering low maintenance and high operational efficiency.

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Hoja de datos del producto (PDF) - Especificaciones detalladas y datos de rendimiento
Manual del usuario- Guía de instalación y funcionamiento paso a paso
Caso práctico: Aplicación de petróleo y gas - Aumento de la eficiencia en el mundo real
Vídeo de demostración - Vea el analizador en acción

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The measurement principle of ion-selective electrodes (ISEs) is based on the relationship between the activity and concentration of ions in an electrolyte solution. An ISE typically consists of two electrodes: a working electrode and a reference electrode. The working electrode selectively responds to the target ion, while the reference electrode provides a stable potential as a reference.

The working electrode is usually coated with a selective membrane that exhibits a specific response to a particular ion. When the target ion interacts with the selective membrane, a change in electric potential is generated. By measuring this potential change, the concentration of the ion can be determined.

where:

Z — ionic charge number;
“±” — “+” for cations and “–” for anions;
a — activity of the measured ion.