Sunnyvale, CA—Dionex Corporation is pleased to announce the release of the IonPac® AS25 anion-exchange hydroxide

selective column. This high capacity column is designed for gradient separation of multivalent anions including polarizable anions (perchlorate) and sulfur speciation (sulfite, sulfate, thiocyanate and thiosulfate) in approximately 30 minutes without the use of solvent.

The key application is sulfur speciation in complex sample matrices including chemical and petrochemical wastewater effluents and in 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. Capillary and microbore formats provide low eluent consumption and improved sensitivity.

For more information, visit www.dionex.com or contact your local Dionex representative.

Dionex (NASDAQ:DNEX) is a global leader in the manufacturing and marketing of liquid chromatography and sample preparation

systems, consumables, and software for chemical analysis. The company’s systems are used worldwide in environmental analysis

and by the life sciences, chemical, petrochemical, food and beverage, power generation, and electronics industries. Our expertise in applications and instrumentation helps analytical scientists to evaluate and develop pharmaceuticals, establish environmental regulations, and produce better industrial products.

IonPac is a registered trademark of Dionex Corporation.