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Alternative name
Periostin ELISA KIT; Osteoblast-specific factor 2 ELISA KIT; OSF-2POSTN ELISA KIT; OSF2 ELISA KIT; PN ELISA KIT; OSF-2 ELISA KIT
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Catalog
E028649
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species
Human
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GenePOSTN
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SpecificityThis assay has high sensitivity and excellent specificity for detection of POSTN. No significant cross-reactivity or interference between POSTN and analogues was observed. NOTE: Limited by current skills and knowledge, it is impossible for us to complete the cross-reactivity detection between POSTN and all the analogues, therefore, cross reaction may still exist in some cases.
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SamplesSerum, Plasma , tissue homogenates,Cell culture supernates,Other biological fluids.
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Sensitivity1.0 pg/mL.
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Intended UseHuman POSTN ELISA Kit allows for the in vitro quantitative determination of POSTN , concentrations in serum, Plasma , tissue homogenates and Cell culture supernates and Other biological fluids.
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StorageFor 5-7days:Store the whole kit at 4℃
For a Long time :Store the Substrate at 4℃, other reagent should store at -20℃.
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Product Description
specificalPrinciple of the Assay: POSTN ELISA kit applies the competitive enzyme immunoassay technique utilizing a monoclonal anti-POSTN antibody and an POSTN-HRP conjugate. The assay sample and buffer are incubated together with POSTN-HRP conjugate in pre-coated plate for one hour. After the incubation period, the wells are decanted and washed five times. The wells are then incubated with a substrate for HRP enzyme. The product of the enzyme-substrate reaction forms a blue colored complex. Finally, a stop solution is added to stop the reaction, which will then turn the solution yellow. The intensity of color is measured spectrophotometrically at 450nm in a microplate reader. The intensity of the color is inversely proportional to the POSTN concentration since POSTN from samples and POSTN-HRP conjugate compete for the anti-POSTN antibody binding site. Since the number of sites is limited, as more sites are occupied by POSTN from the sample, fewer sites are left to bind POSTN-HRP conjugate. A standard curve is plotted relating the intensity of the color (O.D.) to the concentration of standards. The POSTN concentration in each sample is interpolated from this standard curve.
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