Fluoride ion selective electrode (ISE)

Measure ISE Fluoride ion in aqueous solutions. NT Sensors puts at your disposal high quality, reliable, fast and affordable fluoride ion selective electrodes based on latest nanotechnology innovative research.

Fluoride is an electrode with an epoxide body. Its main applications are to determine fluoride-free ions in:

  • Drinking water
  • Soft drinks
  • Wine
  • Plants
  • Food emulsions
  • Sripped acids

Therefore, it is useful to analyze water and food quality.

Its concentrations in water may cause tooth damage, growth disorders and so on and one of the possible sources of fluoride is landfills. Rain washes out those substances from landfills, which can enter the groundwater. As a consequence, the leachate from landfills must be monitored for those concentrations to avoid possible damages. Measurement through fluoride electrodes is a fast and affordable method to determine the the parameter in watery samples.


Range (concentration): 0.1 to 1900 mg/L
Reproducibility (precision): ±10% of full scale (calibrated 10 to 1000 mg/L)
Interfering ions: Only hydroxide ions (OH-) affects to the fluoride measurement. To eliminate this interference, pH must be kept below 8
pH range: 4 to 8.5 (no pH compensation)
Temperature range: 5 – 50°C (no temperature compensation)
Electrode slope: 54 ±5 mV
Electrode resistance: 1–4 MΩ
Immersion minimum: 2 mm (without the protective cap)
Body diameter: see different sensors
* High ionic background (>0.01M), pH out of range and presence of Al3+ and/or Fe3+ in the sample
** High ionic background (>0.01M) or pH out of range.

Fluoride single ion

Mini ION Fluoride

ISE Fluoride


Single Probe



Nano 2.5: Miniature electrode for Fluoride

Nano probes that are ideal for research applications or ultra-low volume purposes. Capable to work in al positions (vertical, horizontal, upside down).  In addition, the carbon nanotubes provides the real miniaturization. Moreover, retaining good performance in terms of ease of use and robustness of operation.

Fluoride nano electrode

REF: M019
Diameter: 2,5 mm
Minimum sample volume: 0,25 ml

More information about
Mini 2.5
View product

Single Ion: Fluoride electrode

The most classic look-like ion selective electrode, with innovative replaceable tip and probe holder for several tip sensors. Discover this electrode, one body, multiple sensor tips.

Fluoride ion-selective electrode probe

REF: S019
Diameter: 12 mm

Conector type:
– BNC (standard)
– USB (imacimus meter)

Minimum sample volume: 5 ml
PDF information about Single Ion