Malondialdehyde (MDA) Catalase (CAT) Total Oxidant Status Total Antioxidant Capacity Application Direct Assays: Colorimetric method to analyze serum, plasma, urine, saliva, semen, tissue homogenate, plant crushed material, and other biological samples, food, beverages and Drug Discovery/Pharmacology.Simple, direct, and high-throughput assays for TOS, TAC, Malondialdehyde (MDA) and Catalase Assay to find wide Application in various research