The Quantikine Rat IL-6 Immunoassay is a 4.5 hour solid phase ELISA designed to measure rat IL-6 in cell culture supernates, rat serum, and plasma. It contains E. coli-expressed recombinant rat IL-6 and antibodies raised against the recombinant factor. This immunoassay has been shown to accurately quantitate the recombinant protein. Results obtained using natural rat IL-6 showed dose-response 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 natural rat IL-6.

Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision

Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision

The recovery of rat IL-6 spiked to three levels throughout the range of the assay in various matrices was evaluated.

To assess the linearity of the assay, five or more samples containing and/or spiked with various concentrations of rat IL-6 in each matrix were diluted with Calibrator Diluent and then assayed.