Quantitative colorimetric assay. This assay has high sensitivity and excellent specificity for detection of Rat SOD2. No significant cross-reactivity or interference between Rat SOD2 and analogues was observed. Note: Limited by current skills and knowledge, it is impossible for us to complete the cross- reactivity detection between Rat SOD2 and all the analogues, therefore, cross reaction may still exist. Sample types: plasma, serum. Range: 0.31 - 20 ng/ml. Precision: Intra-Assay: CV<10% Inter-Assay: CV<10%.