Radial Immunodiffusion and Electroimmunoassay

Typically the two most commonly encountered gel-based methods for quantitative immunochemical studies are RID umnunoassay and electro immunoassay ( rocket technique). 

Pick s equation predicts that the rate of diffusion is dependent on antigen size, molecular weight, and concentration. Whereas this is indeed the case for the rate of diffusion, the ultimate area of the precipitin ring at equilibrium is independent of these factors and dependent instead on the 

In many clinical laboratories, gel-based methods are restricted to qualitative studies. Quantitative data are more commonly obtained by turbidimetric and nephelometric methods, radioimmunoassays, enzyme immunoassays (EIAs), and fluorometric immunoassays. 

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Radial immunodiffusion and electroimmunoassay (El) Typically, the two most commonly encountered... 

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