[A method for the determination of the osmotic fragility of erythrocytes]

A method for registration of the haemolysis of erythrocytes as a measure for their osmotic resistance is presented. The technical realization is performed by means of a cuvette head-piece for holding a filter, which separates the investigation material from water. A cuvette insertion guarantees the regular construction of a haemoglobin gradient, serving as a measure for haemolysis, which is photometrically measured in the Spekol (VEB Carl Zeiss JENA) and registered by means of the compensation tape writer G 1 B 1 (VEB Carl Zeiss JENA). 0.3-0.4 ml investigation material are used. The expenditure of time amounts to about 20 minutes.