Department of Physics, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2013 Mar 15;105:557-62. doi: 10.1016/j.saa.2012.11.091. Epub 2012 Dec 31.
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 (1)H NMR spectral study have also been carried out and discussed.
在室温下研究了二甲亚砜溶液中罗丹明 B 碱（RhB）在不同浓度三乙胺（TEA）和正丁胺（NBA）时的荧光猝灭。结果表明，随着 TEA 和 NBA 浓度的增加，RhB 的荧光强度降低。结果表明，由于胺类物质的猝灭是通过动态猝灭过程进行的。使用 Stern-Volmer 方程计算了猝灭过程的速率常数。还进行了时间分辨荧光研究和（1）H NMR 光谱研究，并进行了讨论。
