Dionex Introduces New Anion Column for Gradient Separation of Multivalent Anions in Complex Sample Matrices

8 May 2011
bridget bridget
Laboratory Director

Product news

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 the company article page or contact your local Dionex representative.

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Ion ChromatographyIon chromatography, also known as ion exchange chromatography, is a high-performance liquid chromatographic technique used for the separation and identification of ions or polar molecules in a sample, including proteins, nucleotides and amino acids. Equipment includes ion exchange columns, ion exclusion columns, ion chromatography systems, pumps, and detectors. Find the best ion chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.Preparative ChromatographyPreparative chromatography equipment is used for purification purposes, separating and collecting compounds eluted from a mixture which can then be subsequently used for further purposes. This can be done in large quantities or small. Preparative chromatography systems are usually low to medium pressure liquid chromatographs that are semi-automated. Explore a range of preparative columns and fraction collectors. Find the best preparative chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.