Fluorescence quenching of Rhodamine B base by two amines
Fluorescence quenching of Rhodamine B base by two amines
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DOI：
10.1016/j.saa.2012.11.091
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发表时间：
2013-03-15
影响因子：
4.4
通讯作者：
Chenthamarai, S.
中科院分区：
文献类型：
--
作者：
Bakkialakshmi, S.;Selvarani, P.;Chenthamarai, S.
研究了室温下不同浓度的三乙胺（TEA）和正丁胺（NBA）对罗丹明B碱（RhB）在DMF溶液中的荧光猝灭作用。结果表明，随着TEA和NBA浓度的增加，RhB的荧光强度降低。已经观察到，由于胺的猝灭通过动态猝灭过程进行。用Stern-Volmer方程计算了猝灭过程的速率常数。时间分辨荧光光谱和核磁共振氢谱研究也进行了讨论。(C)2012爱思唯尔有限公司版权所有。
Fluorescence quenching of Rhodamine B base (RhB) in DMF solution has been studied at different concentrations of the amine Triethyl amine (TEA) and n-butyl amine (NBA) at room temperature. It has been observed that the fluorescence intensity of RhB decrease with increase in the concentration of the TEA and NBA. It has been observed that the quenching due to amines proceeds via dynamic quenching process. The rate constants for the quenching process have been calculated using Stern-Volmer equation. Time resolved fluorescence study and H-1 NMR spectral study have also been carried out and discussed. (C) 2012 Elsevier B.V. All rights reserved.