The direct measurement of ions using ion selective electrodes (ISE) is a well-established technique frequently used as a standard method of analysis in chemistry laboratories today
Applications exist for common ions like sodium, chloride, fluoride and potassium.
Some electrodes also measure dissolved gases like ammonia, nitrogen dioxide and carbon dioxide.
The main advantage of electrode technology is the wide variety of different analytical methods available.
The correct choice of method will improve the accuracy and reproducibility of the result.
Electrode measurements are simpler and faster than other analytical techniques with analysis time typically being under one minute.
A wide range of Orion meters, electrodes and consumables are available to accurately measure ion concentrations in a variety of samples, such as water, food, pharmaceutical and biological samples.