FLUORESCENCE QUANTUM YIELD OF CRESYL VIOLET IN METHANOL AND WATER AS A FUNCTION OF CONCENTRATION
FLUORESCENCE QUANTUM YIELD OF CRESYL VIOLET IN METHANOL AND WATER AS A FUNCTION OF CONCENTRATION
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DOI：
10.1021/j100183a045
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发表时间：
1992-02-20
影响因子：
--
通讯作者：
EYRING, EM
中科院分区：
文献类型：
--
作者：
ISAK, SJ;EYRING, EM
用光热光谱法和荧光法测定了甲酚紫高氯酸盐在甲醇和水溶液中的绝对和相对荧光量子产率随浓度的变化。 荧光量子产率的浓度依赖性被发现是显着的，不能被忽略，在过去的研究。 发现荧光量子产率的值受内滤波器效应的影响。 在水溶液中，荧光量子产率也受到归因于水结构和染料二聚化的猝灭的影响。
Photothermal spectroscopies and fluorimetry have been used to determine absolute and relative fluorescence quantum yields for cresyl violet perchlorate in methanolic and aqueous solutions as a function of concentration. The concentration dependence of the fluorescence quantum yield is found to be significant and cannot be ignored as in past studies. The values of the fluorescence quantum yield are found to be affected by inner filter effects. In aqueous solution, the fluorescence quantum yield is also affected by quenching attributable to water structure and dye dimerization.