The available tests include the tube-precipitin ( TP ) assays, initial testing.
2.
The antigen diffuses radially into the medium, forming a circle of precipitin that marks the boundary between the antibody and the antigen.
3.
It is therefore often desirable to adjust the concentration of antibody and the quantity of antigen to assure that precipitin rings will be large.
4.
The antigen is quantitated by measuring the diameter of the precipitin circle and comparing it with the diameters of precipitin circles formed by known quantities or concentrations of the antigen.
5.
The antigen is quantitated by measuring the diameter of the precipitin circle and comparing it with the diameters of precipitin circles formed by known quantities or concentrations of the antigen.
6.
The effect is rapid migration of the antibody and antigen out of their respective wells towards one another to form a line of precipitation, or a precipitin line, indicating binding.
7.
All these functions were attributed to different substances in the serum, and named accordingly as " antitoxin ", " precipitin " and " agglutinin ".
8.
Besides identity, non indentity and partial identity, the precipitin line ( s ) should come out also with another one, which might be called "'unrelated precipitin line " '.
9.
Besides identity, non indentity and partial identity, the precipitin line ( s ) should come out also with another one, which might be called "'unrelated precipitin line " '.
10.
IgG antibody precipitin testing from serum is useful, as positive results are found in between 69 90 % of patients, though also in 10 % of asthmatics with and without SAFS . Therefore, it must be used in conjunction with other tests.
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