Quantitative colorimetric assay. This kit is for the detection of Mouse PR / Progesterone Receptor. No significant cross-reactivity or interference between PR / Progesterone Receptor and analogs was observed. This claim is limited by existing techniques therefore cross-reactivity may exist with untested analogs. Sample types: plasma, serum. Range: 100 - 2500 pg/ml. Precision: Intra-Assay: CV%<10% Inter-Assay: CV%<10%. Time: 1.5 hours