title: A simple method for the standardization of centrifugation procedures in blood component preparation.
abstract: The total sedimentation effect in centrifugation procedures is described by including the phases of acceleration and retardation and expressing the effect by the product g X s. 91 CPD whole blood units were centrifuged at different speeds and times, between 373 g for 9 min 52 s and 2,606 g for 22 s. All procedures gave a sedimentation effect of 244,090 g X s. The platelet yield in the platelet-rich plasma was 78-92% of whole blood. No significant difference was observed between low g force for a long time as compared to high g force for a short time.
mesh_terms: D001803:Blood Transfusion / Q000379:methods* / Q000592:standards; D006801:Humans