Stabilized Romanowsky stain solution
AssigneeMiles Laboratories, Inc.
InventorsJohn C. Liao, Chittaranjan P. Patel, John L. Ponzo
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Abstract
The present invention is a stabilized Romanowsky type stain solution. The stain solution which comprises azures, Methylene Blue and an eosin dye in methanol is stabilized by the addition thereto of an ammonium halide, a primary, secondary or tertiary alkylamine hydrohalide or a combination thereof.
Claims11
In combination with a Romanowsky type stain comprising azures, Methylene Blue and an eosin dye in methanol solution, the improvement which comprises the presence of a stabilizing amount of an ammonium halide, a primary, secondary or tertiary alkylamine hydrohalide or a combination thereof in which the alkyl chains contain from 1 to 6 carbon atoms, said halide being selected from the group of chloride, bromide or iodide.
A method for the stabilization of a Romanowsky type stain comprising azures, Methylene Blue and an eosin dye in methanol solution which comprises adding to said solution a stabilizing amount of an ammonium halide, a primary, secondary or tertiary alkylamine hydrohalide or a combination thereof in which the alkyl chains contain from 1 to 6 carbon atoms, said halide being selected from the group of chloride, bromide or iodide.
Dependencies are inferred from the claim text.