认为在高浓度伞形酮溶液中存在着二聚现象。
To our thinking there are dimerisation phenomena in the umbelliferone solutions at high concentration.
对比研究了数种溶剂中不同浓度伞形酮溶液的荧光光谱。
The fluorescence spectra of umbelliferone (7-hydroxycoumarin) solutions at different concentrations in various solvents are compared and studied.
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