Anion column for complex sample matrices

The IonPac® AS25 anion-exchange hydroxide selective column is a high capacity column designed for gradient separation of multivalent anions and polarizable anions (iodide and perchlorate) including sulphur species (sulphite, sulphate, thiocyanate and thiosulphate). The column simplifies the determination of polarizable anions by using an isocratic hydroxide eluent with no solvent required for the separation. Analysis time is approximately 30 minutes. The key application is sulphur speciation in complex sample matrices including food and beverage samples. The elimination of solvents reduces waste disposal costs and allows the customer to use RFIC-EG technology for this application. The column is available in 4 × 250 mm, 2 × 250 mm and 0.4 × 250 mm formats supporting flow rates from 0.010 to 3 mL/min. Capillary and microbore formats provide low eluent consumption and improved sensitivity.


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