Sell M. Tuberculosis (TB) Antibody (IgG) Testing Kit

Application:

Rapidly detecting M. Tuberculosis antibody (IgG) in human serum to aid in diagnosis of tuberculosis in clinic.



Working principle:

It lays an important basis for the kit to aid in diagnosis of TB by detecting serum M. tuberculosis antibody that the M. tuberculosis antibody level in healthy human sera is abnormaly higher than that in TB infected ones. The kit integrates the method of immunological determination with immunochoromatograhy in one test. After drops of serum sample are added to sample well of the cassette, the serum can be seen migrating upwards, at first combines with the colloid gold labelled with specific antigen, forming “antibody- antigen-colloid gold” complex, then the complex flows laterally and is finally captured by recombinant TB antigen protein coated on the test line (T Line ) of the nitrocellulous membrane,forming a red line, which is visible by naked eyes. The color shades depend upon M.tuberculosis antibody (IgG) concentration in the serum sample. Meanwhile, whether there is M tuberculosis antibody (IgG) in the sample, the colloid gold labelled with specific antigen once migrating through control line (C Line) will difinitely be captured by protein A coated on it, forming the other red line, and meaning that the kit works well.