CTK Biotech, USA
Pack Size:30 Test/Kit
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The OnSite H. pylori Ab Combo Rapid Test is a sandwich lateral flow chromatographic immunoassay for the qualitative detection of antibodies (IgG, IgM and IgA) against Helicobacter pylori (H. pylori) in human serum, plasma or whole blood. This product features:
Each kit contains:
Clinical Performance Relative Sensitivity: 86.7 % , Relative Specificity: 91%, Overall Agreement: 89.8% TEST PRINCIPLE : The OnSite H. pylori Ab Combo Rapid Test is a lateral flow chromatographic immunoassay based on the principle of the double-antigen sandwich technique. The test cassette consists of: 1) a burgundy colored conjugate pad containing H. pylori antigens including Cag-A conjugated with colloidal gold (H. pylori conjugates) and a control antibody conjugated with colloidal gold, and 2) a nitrocellulose membrane strip containing a test line (T line) and a control line (C line). The T line is pre-coated with non-conjugated H. pylori antigens, and the C line is pre-coated with a control line antibody. When an adequate volume of test specimen is dispensed into the sample well of the cassette, the specimen migrates by capillary action across the cassette. Antibodies (IgG, IgM or IgA) to H. pylori, if present in the specimen, will bind to the H. pylori conjugates. The immunocomplex is then captured on the membrane by the pre-coated H. pylori antigens forming a burgundy colored T line, indicating a H. pylori Ab positive test result. Absence of the T line suggests a negative result.