Lysable blood preservative composition
AssigneeTechnicon Instruments Corporation
InventorsYoung Ran Kim, Leonard Ornstein, Henry Cook Waters, III
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Abstract
Blood is preserved by combining samples with a preservative reagent consisting of an aqueous mixture of a mono-, di- or trisaccharide component and formaldehyde.
Claims13
A preserved lysable anticoagulated blood composition comprising a mixture of blood sample and preservative reagent wherein said preservative reagent comprises an aqueous mixture of a mono-, di- or trisaccharide component and formaldehyde, the resulting preserved blood composition containing said saccharide in the range of from 0.05% to 1.0% by weight and said formaldehyde in the range of from 0.1% to 0.8% by weight.
In a method for enhancing the preservative characteristics of whole blood samples comprising a mixture of whole blood sample and preservative reagent, the improvement which comprises adding a filtered aqueous mixture of a mono-, di- or trisaccharide component and formaldehyde to a fresh whole blood sample, the resulting preserved anticoagulated blood composition containing said saccharide in the range of from 0.05% to 1.0% by weight and said formaldehyde in the range of from 0.1% to 0.8% by weight, mixing the resulting preserved blood composition and storing same until ready for testing.
Dependencies are inferred from the claim text.