Thermo Fisher, 063965, Dionex™ AS22 Eluent Concentrate; Sodium Carbonate/Bicarbonate Concentrate (100X)

Dionex™ AS22 Eluent Concentrate is a ready-to-dilute carbonate/bicarbonate stock solution for ion chromatography with Dionex IonPac AS22 columns. The 250 mL bottle contains a 100X concentrate with nominal component concentrations of 0.45 M sodium carbonate and 0.14 M sodium bicarbonate. Dilution with high-purity deionized water provides the carbonate/bicarbonate eluent used for routine anion separations on the AS22 column family. Using a prepared concentrate reduces weighing and solution-preparation steps and helps limit variability or contamination introduced during manual reagent preparation. The solution is quality checked for ionic contamination and is stored at room temperature. It is intended as an IC eluent preparation reagent and should be diluted to the working concentration required by the specific AS22 method before chromatographic use.