Colloidal Gold Method Covid 19 Antigen Test Kit 15 Minutes Quick Test

Product Details:
Detection technology: colloidal gold method;
Compliant with EU standards;
CE certification, export white list of the Ministry of Commerce of China;
The boxes are printed with different barcodes;
The production date, expiration date and batch number are printed on the box;
It is suitable for your own new crown test at home, and quickly know the new crown test result.

Packaging Specifications:
• Each package contains: 1 Painless Nasal Stick, 1 Antigen Extraction Tube, 1 Tester, 1 Packaging Bag, 1 Box, 1 Instruction Manual
• Individually packaged for 1 person, 20 servings/box, 20 boxes/carton, 400 servings/carton

Frequently Asked Questions:
Question: What are the principles and characteristics of antigen detection? What are the commonly used methods for antigen/antibody detection reagents?
Reply:
The new coronavirus has four main structural proteins: spike protein (Spike protein, S protein), nucleocapsid protein (Nucleocapsid, N protein), membrane protein (Membrane protein, M protein) and envelope protein (Envelope protein, E protein) protein). Once the human body is infected with the virus, these structural proteins can act as immunogens to stimulate plasma cells to produce specific antibodies. Most of the approved antigen detection products use the N protein of the new coronavirus as the target of antigen detection.

The source of samples for antigen testing is usually nasal cavity, throat or saliva. One of its major features is that it can produce results quickly, which can take about 15 minutes. It can realize early shunting of suspected people. The operation is relatively simple, and the price is also among the three testing methods. The cheaper one.

Antigen/antibody detection reagents are based on the immunological principle of specific binding of antigens and antibodies. The commonly used methodologies mainly include colloidal gold method, immunofluorescence chromatography, enzyme-linked immunosorbent assay and chemiluminescence method.

colloidal gold method
It is easy to operate and can be directly visually interpreted. Generally, the detection can be completed in 15 minutes;

Immunofluorescence chromatography
As easy to operate as the colloidal gold method, the detection is rapid, but it requires instrument interpretation;

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Conventional microplate readers can be used for interpretation. Generally, the sensitivity is high, but the detection time is long (about 1.5 hours or more), and there are many operation steps. Measures should be taken to avoid infection during the operation.

Chemiluminescence method
Generally, the sensitivity is also high. Using an automatic chemiluminescence immunoassay analyzer, the detection can be completed without too much manual operation. The detection time is generally about half an hour.