title: A simple method for quantifying IgM of low molecular weight.
abstract: A new and simple method for quantitation of IgM of low molecular weight in sera by radial immunodiffusion in 7% agar gel is described. The test is easy to perform and permits exact determination of low molecular weight IgM concentration down to very small quantities (1 mg%). Results obtained with the method described agree with previously used assay procedures and offer the advantage of convenience and rapidity.
mesh_terms: D000818:Animals; D006041:Goats; D006801:Humans; D005779:Immunodiffusion; D007075:Immunoglobulin M; D008970:Molecular Weight; D008258:Waldenstrom Macroglobulinemia / Q000276:immunology
chemical_list: D007075:Immunoglobulin M