Immunity colloidal gold reagent for detecting IgG antibody of giant cells virus and its preparing method
A cytomegalovirus and colloidal gold technology, applied in the field of preparation of the reagent, can solve the problems of inability to realize single-unit detection, inability to realize one-step operation, long detection time, etc., and achieve easy popularization and use, fast detection speed, low cost effect
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[0007] Adhere one end of the PVC backing to the sample pad, the binding pad in turn, the nitrocellulose membrane in the middle, and the other end to the absorbent pad. The binding pad is coated with protein A (or rabbit anti-human IgG)-colloidal gold marker. The nitrocellulose membrane is coated with cytomegalovirus-specific surface membrane antigen and chicken anti-protein A (or goat anti-rabbit IgG), depending on whether protein A or rabbit anti-human IgG is used for labeling. If the colloidal gold is labeled with protein A, use chicken anti-protein A as the control line; if the colloidal gold is labeled with rabbit anti-human IgG, use goat anti-rabbit IgG as the control line.
[0008] Preparation according to the following steps: (1) Preparation of rabbit anti-human IgG: extract human antiserum to immunize rabbits, and obtain rabbit anti-human IgG after purification; (2) Preparation of polyclonal antibody: use cytomegalovirus-specific surface membrane antigen several times ...
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