| 摘要 |
New dyestuff composition for histological examinations, which comprises (1) a product formed by the interaction of one molar proportion of one or more thionine dyestuffs selected from thionine (Colour Index 52,000), toluidine blue (Colour Index 52,040) and dimethyl thionine (Azur A) with at least 0.2 molar proportion of resorcine at elevated temperature, (2) 0.5(MT/MA) to 2(MT/MA) moles of a dyestuff "A", calculated for one mole of the thionine dyestuff interacted with resorcine, and (3) 0.5(MT/MB) to 2(MT/MB) moles of a dyestuff "B", calculated for one mole of the thionine dyestuff interacted with resorcine, wherein dyestuff "A" and dyestuff "B" are alkaline dyestuffs different in colour and pH, and both dyestuff "A" and dyestuff "B" can be mixtures of alkaline dyestuffs similar in colour and pH, MT is the molecular weight of the thionine dyestuff, MA is the molecular weight of dyestuff "A", and MB is the molecular weight of dyestuff "B", or when any of the thionine dyestuff, dyestuff "A" and dyestuff "B" is a mixture of more substances, MT, MA and MB represent the weighted average of the molecular weights of the components of the thionine dyestuff, dyestuff "A" and dyestuff "B", respectively. The new dyestuff compositions according to the invention enable one to perform a wide variety of histological examinations much more quickly, simply and safely than before, and can also be applied to detect histological changes which could not be detected before. |
