Comparative studies with various anticoagulant stabilizer combinations for the preservation of blood specimen in leukosis diagnosis. II. Testing the application possibilities of new anticoagulant stabilizer combinations for the hematologic diagnonsis of leukosis

: The anticoagulant Chelaplex III in aqueous solution with two new stabilizers (methenamine and tannin) was tested for the preservation of blood samples, together with another combination composed of oxalic acid and methenamine solution. The eventual aim was to test their suitability for use with blood specimens dried in the tube, but this was not done in the present experiments. It was shown that a combination of 5% oxalic acid with 36% methenamine was at least as good as the conventional Chelaplex III-formaldehyde combination for inhibiting coagulation, and it was relatively cheap.