PRINCIPLES OF THE ASSAY
The kit uses colloidal gold immunochromatography to qualitatively detect group A S. pyogenes antigen in throat swab specimens. A rabbit anti-A-type Streptococcus polyclonal antibody labeled with colloidal gold was coated on a gold-labeled mat, and a rabbit anti-A-type Streptococcus polyclonal antibody was coated on the nitrocellulose membrane In the case of a positive specimen, the Group A Streptococcus antigen in the specimen can be combined with a colloidal gold-labeled rabbit anti-A-type Streptococcus polyclonal antibody to form an immune complex, due to the chromatographic complex and the sample flow forward within the nitrocellulose membrane. When the complex passes through the T line, it binds to the coated rabbit anti-A strain of Streptococcus polyclonal antibody to form an immune complex and agglutinate color. The remaining colloidal gold-labeled Rat anti-rab A strain of Streptococcus polyclonal antibody binds to the C-line coated goat anti-rabbit IgG antibody to agglutinate color; if it is a negative specimen, the specimen does not contain group A beta-streptococcus antigen, which causes the formation of immune complexes, can only be developed at the C line.
20x1 tests (Cassette) Group A Streptococcal test Cassette
Each cassette contains a test strip with
1. T-line coated rabbit anti-A group B streptococcus polyclonal antibody. In the C line, a goat anti-rabbit IgG antibody was coated, and a buffer solution: 0.05 M PBS pH 7.4): 1 × 20 pieces
2. Extract A (2M sodium nitrite): 1 × 6 ml
3. Extract B (1 M acetic acid): 1 × 6 ml
4. Sample tube for extraction: 1.5ml × 20
5. Instructions: 1 copy
The components in different batches and different varieties of kits may not be mixed.
Storage
Store as packaged in the sealed pouch at 4-30°C, avoid hot and sunshine, dry place, valid for 24 months.
DO NOT FREEZE. Some protective measures should be taken in hot summer and cold winter to avoid high temperature or freeze-thaw.
