Be the first to like this
Determination of Anions by Ion Chromatography
1 SCOPE AND FIELD OF APPLICATION
This method is suitable for the determination of inorganic anions in Ammonia Solution in the range 100 ppb to 50 ppm m/v.
The sample is passed through a column of anion exchange resin, on which the anions are absorbed and separated. They are then eluted with dilute sodium carbonate/sodium hydrogen carbonate solution and passed through a suppressor. This replaces the cations with hydrogen ions and thus reduces the background conductivity of the eluent. Final measurement is by conductivity