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US 4,902,613 AGranted
Lysing agent for analysis of peripheral blood cells
AssigneeBecton, Dickinson and Company
InventorsChin-hai Chang, Alex M. Saunders
Life of this patent
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Abstract
A lysing agent and a method for utilizing the lysing agent in the identification and enumeration of cells of a select subclass of leucocytes is provided. The lysing agent includes formaldehyde, an alkali or alkaline earth salt of a weak acid and a polyhydric alcohol.
Claims15
A lysing agent for whole blood comprising a mixture of an aqueous solution of:
- a. a short chain aliphatic aldehyde with carbon chain length of one to four
- b. an alkali or alkaline earth salt of a weak acid, and
- c. a polyhydric alcohol.
A lysing agent for whole blood comprising a mixture of an aqueous solution of:
- (a) formaldehyde;
- (b) sodium citrate;
- (c) diethylene glycol;
- and
- (d) distilled water.
2 more elements
Dependencies are inferred from the claim text.