Summary
Determination of fibrin in plasma, also containing fibrinogen, is possible by selective
adsorption on affinity columns prepared from highly purified fibrinogen. Desorption
is complete using 1.0 M potassium bromide, pH 5.3. In addition, the cold-insoluble
globulin is desorbed. Therefore, the eluate is checked on microtiter plates by the
staphylococcal clumping test which selectively detects fibrin or fibrinogen. The procedure
works well with simple laboratory equipment. The diagnosis of fibrinogen-fibrin complexes
is demonstrated in some pathological plasmas.