The Quantikine Human Galectin-9 Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human Galectin-9 in cell culture supernates, serum, plasma, saliva, urine, and human milk. It contains E. coli-expressed recombinant human Galectin-9 and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human Galectin-9 showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human Galectin-9. Range: 0.16 - 10 ng/mL. Sensitivity: 0.028 ng/mL. Time: 4.5 hours