Quantitative colorimetric assay. This kit is for the detection of Visceral adipose Tissue Derived Serine Protease Inhibitor SERPINA12 / Vaspin. No significant cross-reactivity or interference between SERPINA12 / Vaspin and analogs was observed. This claim is limited by existing techniques therefore cross-reactivity may exist with untested analogs. Sample types: plasma, serum. Range: 0.5 - 10 ng/ml. Precision: Intra-Assay: CV%<10% Inter-Assay: CV%<10%. Time: 1.5 hours