The fluoride ion analyzer is an online monitor and laboratory detector specifically used to measure fluoride ions using the ion selective electrode method.
It is suitable for occasions containing fluoride ions to determine the value of fluoride ions. The so-called ion-selective electrode is usually understood to mean an electrode with a sensitive membrane that can react selectively to ions or molecular substances. The analysis method using this type of electrode belongs to the potential analysis method in electrochemical analysis.
The ion selective electrode method is a technology developed in the 1970s. The Society of Pure and Applied Chemistry definition reads:
Ion Selective Electrode It is a type of chemical sensor whose potential is linear to the logarithm of the activity of a particular ion in solution.
Principle of operation
The fluoride ionEnselectivity as the indicator electrode and the calomel electrode as the reference electrode form the measurement battery: Fluoride Ion Selective Electrode|Test Solution||Calomel Electrode.
Neglecting the liquid junction potential, the electromotive force of the test solution is directly proportional to the logarithm of the activity of the fluoride ion , and the fluoride ion electrode generally satisfies the Nernst equation in the range of 1 10 mol/L-1.
Simple instrument, low investment costs. Simple and firm electrode structure, intelligent components, high sensitivity, fast response, easy to carry Simple operation, overcome color interference and high precision
The analysis accuracy is high, and the application is relatively wide; it can be controlled by the autosampler and analysis software, as well as auto sample injection, automatische qualitative and quantitative analysis, reducing the workload of operators.