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Dionex Updates Application for More Sensitive Testing of Toxic Hexavalent Chromium in Drinking Water

DionexDionex is pleased to announce the release of Application Update 179: Sensitive Determination of Hexavalent Chromium in Drinking Water. Concern about the dangers of hexavalent chromium in drinking water has been rising as the National Toxicology Program (NTP) of the U.S. Department of Health and Human Services has said that chromium-6 in drinking water shows evidence of carcinogenic activity. In addition, after the United States EPA released its Toxicological Review of Hexavalent Chromium report, the California Office of Environmental Health Hazard Assessment (OEHHA) agency has issued a new Public Health Guideline (PHG) for chromate at 0.02 ppb in drinking water.

This application update successfully demonstrates a very sensitive ion chromatography method for determining hexavalent chromium at the proposed California PHG level of 0.02 μg/L. Using the Dionex 2 mm IonPac® AG7 guard and IonPac AS7 analytical columns, the method appropriately reduces the flow rates and reaction coil volume.

For more information, visit 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.


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