Oxytocin (OXT) is a mammalian neurohypophysial hormone. Produced by the hypothalamus and stored and secreted by the posterior pituitary gland, oxytocin acts primarily as a neuromodulator in the brain. Sample Type:Serum and plasmaIntended Use:The kit is a competitive enzyme immunoassay for the in vitro quantitative measurement of Oxytocin in rat serum, plasma; and other biological fluids not being tested.Sensitivity:80pg/mlRange:0.024-100ng/mlSpecificity:This assay has high sensitivity and excellent specificity for detection of rat oxytocin.Precision:Intra CV<10%; Inter CV <15%Test Principle:The immunoplate in this kit is pre-coated with secondary antibody and the nonspecific binding sites are blocked. The secondary antibody can bind to the Fc fragment of the Oxytocin antibody whose Fab fragment will be competitively bound by both biotinylated Oxytocin peptide and peptide standard or targeted peptide in samples. The biotinylated Oxytocin peptide interacts with streptavidin-horseradish peroxidase (SA-HRP) which catalyzes TMB substrate solution. The intensity of the yellow is directly proportional to the amount of biotinylated Oxytocin peptide SA-HRP complex but inversely proportional to the amount of the peptide in standard solutions or samples. A standard curve of known Oxytocin concentration can be established accordingly. The unknown Oxytocin concentration in samples can be determined by extrapolation to this standard curve.Kit Components:Assay plate (12x8 coated Microwells)-1Primary antibody-2x6uLStandard peptide-2x10uLBiotinylated peptide-2x10uLHRP-Streptavidin concentrate-1x60uLAssay diluent (5x concentrate)-1x15mLWash buffer (20x concentrate)-1x25mLTMB substrate-1x12mLStop solution-1x8mLAdhensive strip-2Instruction manual-1.Storage and Stability:Store powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for at least 6 months For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.