Composition and method for staining cellular dna

C - Chemistry – Metallurgy – 12 – Q

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C12Q 1/68 (2006.01) G01N 1/30 (2006.01) G01N 15/10 (2006.01)

Patent

CA 2295545

A composition and method for staining cellular DNA are disclosed. The composition of the present invention is an aqueous alcoholic solution that includes a cationic stain, a metabisulfite, and an alcohol preferably selected from methanol, ethanol, and mixtures thereof. In a preferred embodiment, the cationic stain is thionin.

La présente invention concerne une composition et un procédé de coloration d'ADN cellulaire. La composition de la présente invention est une solution alcoolisée aqueuse qui comprend un colorant cationique, un métabisulfite et un alcool sélectionné, de préférence, dans le groupe constitué de méthanol, d'éthanol et demélanges de ceux-ci. Selon un mode de réalisation préféré, le colorant cationique est une thionine.

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