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  • Title: Leukocyte isolation by sedimentation: the effect of rouleau-promoting agents on leukocyte differential count.
    Author: Ellis WD, Mulvaney BD, Saathoff DJ.
    Journal: Prep Biochem; 1975; 5(2):179-87. PubMed ID: 1144314.
    Abstract:
    The rouleau-promoting agents dextran and polyvinylpyrrolidone (PVP) were used to accelerate erythrocyte sedimentation in order to harvest the leukocyte rich plasma (LRP). The objective of the work was to determine if agent concentration or blood: agent ratio had any effect on the leukocyte differential count and if so at what agent concentration and agent:blood ratio did the LRP leukocyte differential count most closely match the whole blood leukocyte differential count. With both sedimentation agents the data clearly indicate that both parameters effect LRP differential counts and that low concentrations of sedimentation agents are most important in obtaining LRP differential counts which most closely match the whole blood differential counts.
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