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COVID-2019 Antigen Rapid Detection Kit (Colloidal Gold Immunochromatography) is used for the qualitative detection of COVID-19-NP antigens in human nasopharyngeal and oropharyngeal swab samples. It is mainly used for clinical reference, but cannot be used as a diagnostic basis for COVID-19.
This rapid kit is used for the qualitative detection of SARS -CoV-2 nucleocapsid protein antigen (hereinafter referred to as SARS-CoV-2 N-antigen) in anterior nasal swab samples.
This rapid kit is based on the Colloidal Gold Method to detect SARS-CoV-2 N-antigen. The SARS-CoV-2 N-antigen in the sample forms a complex with the antibody labeled with colloidal gold. This complex migrates along the membrane and reaches the test region (T-line) on which a second antibody against the SARS-CoV-2 N- antigen is applied. Unbound colloidal gold migrate along the membrane to the control region (C-line) and are bound by the control region antibody.
If both the T-line and the C-line are red, the test result is SARS-CoV-2 N- antigen positive; if only the C-line is red and no T-line becomes visible, the test result is SARS-CoV-2 N-antigen negative .If no C-line becomes visible ,the test result is invalid and the sample must be retested with a new test cassette.
Detection principle
This kit adopts the principle of highly specific antibody-antigen reaction and colloidal gold-labeled immunochromatographic analysis technology. The reagent contains the COVID-2019-NP antigen monoclonal antibody prefixed in the minimal region (m on the membrane and the COVID-2019-NP antigen monoclonal antibody coated on the labeling pad-olloidail gold mixture. The sample is dropped into the sample well, and then When detected, it reacts with the monoclonal antibody to the COVID-2019.NP antigen bound to the pre-coated colloidal gold particles, and then the mixture is chromatographed upward to produce a callus effect. i is positive. The antibody labeled with the colloidal gold particles will first Binds the COVID-2019-NP antigen virus in the sample during chromatography and then the conjugate is immobilized on the
memBrane, a red line appears in the test area (T), fi is negative, and there is no red line in the test area (T). No matter whether the sample contains COVID-2019, the red line area (C) will appear in the quality control area. The red line appearing in the quality control area (C) is the standard, which is used to judge whether the sample is sufficient and whether the chromatographic process is normal. It can also be used as an internal control standard for reagents.
Packing include:
1 test cassette: 20 tests, 1 test
2 sample solution (0.9% sodium chloride solution: 20 tubes, 1 tube
3 swabs; 20, 1
4 Dropper Tips: 20, 1
