For quantitative determination of sulfate ion and evaluation of drug effects on sulfate metabolism. Key Features: Sensitive and accurate. Detection range 0.02 mM (0.19 mg/dL) to 2 mM (19.2 mg/dL) sulfate in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 5 min. Method: OD600nm. Samples: Serum, urine, food and environment. Species: All. Procedure: Assay takes 5 min. Kit size: 200 tests. Detection limit: 20 µ M.