Low Density Lipoprotein Cholesterol Assay Kit is an Assay Kit by Direct Method.Based on the bottle type, product model can be classified in to Hitachi 7170, Hitachi 7060, Hitachi 7020, Beckman, Toshiba, Mindray, DuPont, Innova, Siemens, KHB, Abbott, Universal types, etc.This product is used to determine LDL - C content in human serum. table, th, td { border: 1px solid black; border-collapse: collapse; } th, td { padding: 10px; } R1: Detection Reagent 1R2: Detection Reagent 2 Phosphate Buffer → 100.0 mmol/lN-Ethyl-N-(3-sulfopropyl)-3- methoxyaniline sodium salt → 30.0 mmol/l4-aminoantipyrine → 0.5 mmol/lCholesterol Oxidase → 500 U/LPeroxidse → 900 U/L This assay kit is suitable for automatic or semi - automatic biochemical analyzer with 600nm and 700nm wavelength.Serum without hemolysis. Samples testing should be completed at the same day after collected. Otherwise, the samples should be cryopreserved and avoid repeated freeze - thaw cycles. LDL - C in the samples remain stable for 6 days at 2 - 8°C.. Range: 0.03 mmol/l - 18 mmol/l.