Quantitative colorimetric assay. This assay has high sensitivity and excellent specificity for detection of human Kim-1. No significant cross-reactivity or interference between human Kim-1 and analogs was observed. Note: Limited by current skills and knowledge, it is impossible for us to complete the cross-reactivity detection between human Kim-1 and all the analogs, therefore, cross reaction may still exist. Sample types: serum, tissue homogenates, urine. Range: 0.312 - 20 ng/ml. Precision: Intra-assay: CV%<8% Inter-assay: CV%<10%.