It does not make any sense that trying to separate the tautomers of enol and ketone.
一化合物，在溶液中存在酮式与烯醇式互变异构体，普通液相柱中能否分开？
2
By studying the absorption spectra, we have verified the existence of various tautomers of sodium fluorescein in ethanol solution.
通过对其吸收光谱的研究，证明荧光素钠在乙醇溶液中存在多种互变异构体。
3
This invention relates to novel compounds having the structural Formula I below: and their pharmaceutically acceptable salts or tautomers, compositions and methods of use thereof.