For quantitative determination of chromium Cr (VI) . Key Features: Sensitive and accurate. Linear detection range of 20 - 2000 µ g/L Chromium. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. No wash and reagent transfer steps are involved. Can be readily automated for processing thousands of samples per day. Method: OD480nm. Samples: Biological (serum, plasma etc), environmental (water, soil etc), food and beverage samples. Species: All. Procedure: Assay takes 20 min. Kit size: 250 tests. Detection limit: 20 µ g/L (0.38 µ M, 0.02 ppm) .