The Quantikine HS Human PlGF Immunoassay is a 3.5 hour solid phase ELISA designed to measure PlGF levels in serum and plasma. It contains E. coli-expressed recombinant human PlGF and antibodies raised against the recombinant factor. This immunoassay has been shown to quantitate recombinant human PlGF accurately. Results obtained using natural human PlGF showed linear curves that were parallel to the standard curves obtained using the Quantikine HS kit standards. These results indicate that this kit can be used to determine relative mass values for natural human PlGF. Range: 3.13 - 200 pg/mL. Sensitivity: 0.326 pg/mL. Time: 3.5 hours