SEDIMENTATION IN THE ANGLE CENTRIFUGE

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Abstract
The prolytic loss of K., i.e. the loss of K which takes place from red cells exposed to hypolytic concentrations of lysins, has been measured in systems containing distearyl lecithin, sodium taurocholate, sodium tetradecyl sulfate, saponin, and digitonin, by means of the flame photometer. The lysins are added in various concentrations to washed red cells from heparinized human blood, and the K in the supernatant fluids is determined after various intervals of time and at various temperatures. The prolytic loss Kp is compared in every experiment with the loss Ks into standard systems containing isotonic NaCl alone, with no lysin.