Mouse Platelet Factor 4 ELISA Kit is a sandwich ELISA kit for use with Serum, platelet-poor plasma and cell culture supernates. This assay has high sensitivity and excellent specificity for detection of Platelet Factor 4 (PF4). No significant cross-reactivity or interference between Platelet Factor 4 (PF4) and analogues was observed. Please note that this kit is also available as a CLIA Kit. Quantitative Colorimetric Sandwich ELISA. Sample Types: serum, platelet-poor plasma and cell culture supernatants. Range: 0.156 ng/ml - 10 ng/ml. Sensitivity: < 0.068 ng/ml