Quantitative colorimetric assay. This assay has high sensitivity and excellent specificity for detection of pig TGF-B1. No significant cross-reactivity or interference between pig TGF-B1 and analogues was observed. Note: Limited by current skills and knowledge, it is impossible for us to complete the cross-reactivity detection between pig TGF-B1 and all the analogues, therefore, cross reaction may still exist. Sample types: plasma, serum. Range: 0.78 - 50 ng/ml. Precision: Intra-Assay: CV<8% / Inter-Assay: CV<10%. Time: 4.5 hours