This solid state, half-cell ion selective electrode (ISE) determines the concentration of fluoride (F-) in a solution. The lanthanum fluoride crystal membrane produces a potential change due to the fluoride ion exchange between the membrane and the sample.
This solid state, half-cell ion selective electrode (ISE) determines the concentration of fluoride (F-) in a solution. The lanthanum fluoride crystal membrane produces a potential change due to the fluoride ion exchange between the membrane and the sample.
The fluoride selective electrode is a potentiometric half-cell that housed within an epoxy body. The internal elements are isolated from the sample by a lanthanum fluoride crystal membrane. This solid state sensor requires a separate reference electrode to complete the measurement system. The reference half-cell has a cone style junction, producing a highly stable reference potential and consistent flow rates of electrolyte into the solution. A simple press of the top section of the ISE makes it easy to empty the electrolyte fill solution and replace as needed.
For the electrode to measure total fluoride concentration accurately, pH and ionic strength of the standards and sample be adjusted to a constant value. The total ionic strength adjustment buffer (TISAB) ensures that the pH of the solution is between pH 5 and 8 and that the activity coefficient is constant. The TISAB solution also preferentially complexes with various metal ions, such as aluminum and iron, which have a tendency to form complexes with fluoride ions. Meaning TISAB ensures that these metal ions do not interfere, permitting an accurate measurement of total fluoride . Measuring all solutions with a constant pH and ionic strength reduces the margin of error between measurements. The fluoride solid state ISE can measure from 1µM (0.02 mg/L) to saturated.
Features
Applications
ideal in drinking water treatment, environmental monitoring, and plating baths
Type | solid state; half-cell | |
Measurement Range | Flouride (Fl-) saturated to 1•10-6M, saturated to 0.02 mg/L (ppm) | |
Optimum pH Range | pH 5 to 8 | |
Temperature Range | 32 to 176°F (0 to 80°C) | |
Diameter | 12mm | |
Overall Length | 120mm | |
Body Material | Epoxy | |
Cable | Coaxial; 1m (3.3') | |
Connection | BNC |
Cliquer sur une catégorie pour voir une sélection d'accessoires compatible avec le Hanna HI4010 Fluoride Half-Cell Ion Selective Electrode.
Type | solid state; half-cell | |
Measurement Range | Flouride (Fl-) saturated to 1•10-6M, saturated to 0.02 mg/L (ppm) | |
Optimum pH Range | pH 5 to 8 | |
Temperature Range | 32 to 176°F (0 to 80°C) | |
Diameter | 12mm | |
Overall Length | 120mm | |
Body Material | Epoxy | |
Cable | Coaxial; 1m (3.3') | |
Connection | BNC |
Cliquer sur une catégorie pour voir une sélection d'accessoires compatible avec le Hanna HI4010 Fluoride Half-Cell Ion Selective Electrode.