The Quantikine Human MMP-9/NGAL Complex Immunoassay is a 4.5 hour solid phase ELISA designed to measure the MMP-9/NGAL complex in cell culture supernates, serum, plasma, urine, and saliva. It contains natural human MMP-9/NGAL as the standard. The antibodies were raised against recombinant human MMP-9 and recombinant human NGAL. This kit will not detect recombinant human MMP-9 or NGAL in their free forms. Range: 0.31 - 20 ng/mL. Sensitivity: 0.058 ng/mL. Time: 4.5 hours