Chromium(VI) is movie material. Remember the movie “Erin Brockovich”? With Metrohm you don’t need to worry – Track it down using ion chromatography.
The movie “Erin Bronkovitch” is based on a true story and tells the eponymous protagonist`s fight against a U.S. energy corporation that had poisoned the local water supply with toxic chromium(VI).
Chromium(VI) compounds are highly water-soluble and oxidising and are considered toxic and potentially carcinogenic.
The determination of Chromium(VI) compounds applies anion-exchange chromatography followed by 1,5 –diphenylcarbazide postcolumn chemistry according to U.S. EPA Method 218.7.
This poster looks at the possibility to modify the existing EPA Method to meet California`s rigorous public health goal (PHG) of 0.02 μg/L.
After optimising instrument settings and method parameters, a method detection limit (MDL) of 0.01 μg/L has been obtained.
The micro-bore column used guaranteed precise results within less than six minutes. The applied flow-through reactor and the UV/VIS detector allows a significantly enhanced efficiency of the post column reaction.
