AutoPure Urea/BUN is reagent kit for direct quantitative determination of Urea/BUN in human serum and plasma on automated clinical chemistry analyzers. AutoPure Urea/BUN is a ready to use, two liquid reagent system. With AutoPure Urea/BUN, the assay is linear upto urea 535 mg/dl (88.8 mmol/l)/urea nitrogen 250 mg/dl (41.5 mmol/l). Serum/Plasma Urea: 1045 mg/dl (1.7 7.5 mmol/l) Urea Nitrogen (BUN):521 mg/dl (0.843.5 mmol/l) Kit contains: R1: 3 x 50 ml R2: 3 x 30 ml