March 2010, Sunnyvale, CA- Dionex Corporation is pleased to announce the release of the new Anion Concentrator for Eluent Regeneration (AC-ER) column, a very low-dead-volume concentrator.

The AC-ER column is available in a 4 × 16 mm format to reduce the delay volume to approximately 75 μL. With an AC-ER column installed in an Reagent-Free^TMIC system with eluent regeneration (RFIC-ER^TM), each injection only adds 75 μL of sample matrix into the eluent regardless of the sample volume. Thus, 266 injections can be performed before the eluent needs to be replaced, regardless of the actual volume of sample loaded onto the concentrator. Also, by using a matrix elimination step with the AC-ER column in place, solvents can be directly injected onto the AC-ER column and then flushed off before injection into the RFIC-ER system.

The new AC-ER concentrator column brings a host of new applications within range of RFIC-ER systems, including analysis of bromate to 5 ppb in drinking water, and analysis of common anions in ethanol.

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.

Reagent-Free and RFIC-ER are trademarks of Dionex Corporation.