Quantitative counterimmunoelectrophoresis for urinary fibrinogen-related antigens

A quantitative procedure for urinary fibrinogen-related antigens, applying counterimmunoelectrophoresis to serial dilutions of concentrated samples against standards of known fibrinogen concentrations, is described. It is fast, convenient, sensitive enough (r = 0.8729, p less than 0.001), and can be easily incorporated into routine laboratory work.