Abstract
Summary
Changes have been made in the conditions of the micro test of plasmas from chicks with erythromyeloblastic leukosis for their capacity to dephosphorylate adenosine triphosphate. The principal modification has involved use of a balanced saline solution in the reaction mixture resulting in a very large increase in the precision, sensitivity and resolution of the procedure. With 3-λ of plasma, instead of the 5-λ volumes employed earlier, the expected error of a single determination in 2 of 3 cases is ±4 gamma phosphorus on the basis of measurements by electrometric titration. The greater sensitivity has extended the range of plasma activity possible for accurate measurement and has shortened the time necessary for the estimation.
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