Sensitive determination of hexavalent chromium in drinking water using a compact IC system

Chromate and dichromate have an oxidation state of +6 and therefore are colloquially known as hexavalent chromium, Cr(VI). Hexavalent chromium is a strong oxidizing, toxic, and potentially carcinogenic agent, and is therefore a regulated compound. Thermo Fisher Scientific demonstrates the determination of 10 ng/L to 200 ng/L hexavalent chromium in a municipal drinking water sample and a synthetic HIW sample, which approximates the composition of a typical municipal water sample, according to modified US EPA Method 218.7 and AU179 on a Dionex™ Inuvion ion chromatography (IC) system.