[Immunoenzyme, turbidimetric and affinity chromatographic methods of determining the fibronectin level in human plasma (comparability of results and effect of conditions and duration of blood storage)].

Immunoenzymatic, turbidimetric and affinity chromatography methods used for estimation of fibronectin concentration exhibited the similar results but the turbidimetric procedure was more simple and less time-consuming. Concentration of fibronectin was not decreased in blood maintained in polymer container "Gemacon 500" within 48 hrs both at 4 degrees and 20 degrees, while about 40 = 50% of fibronectin was lost after storage of blood in glass flasks under similar conditions.