FORFARINGSSETT FOR BESTEMNING AV DET DIELEKTRISKA GENOMSLAGET AV PARTIKLAR SOM ER SUSPENDERADE I EN ELEKTROLYTLOSNING SAMT FOR BESTEMNING AV PARTIKLARNAS STORLEK JEMTE ANORDNING FOR GENOMFORANDE AV SETTET

摘要

A method of and an apparatus for determining the dielectric breakdown characteristics and size of membrane-sheathed particles such as living-organism cells and the apparent size of such particles after breakdown of the membrane, makes use of two measuring orifices traversed by an electrolyte across which an increasing electric field is applied during the measuring process in which the particles successively traverse one of the orifices. The current through the measuring orifice deviates from the linear with increasing field generated preferably by a sawtooth voltage, the current change being used to measure the particle variables stated.