Archer R K, Allen B V, Baldwin C
Br J Haematol. 1978 Mar;38(3):401-405. doi: 10.1111/j.1365-2141.1978.tb01060.x.
A sedimentation method for counting human blood platelets is proposed which uses a fluid of sp.gr. i.057 at an osmolarity of 320 milliosmols. The fluid is a mixture of Lymphoprep and Isoton II. After centrifugation at about 200 platelets are counted on an electronic particle counter.