光学精密工程2017，Vol.25Issue(3)：591-596,6.DOI:10.3788/OPE.20172503.0591
发光染料罗丹明B的荧光传感特性
Multi-functional fluorescent sensing properties of rhodamine B
摘要
Abstract
The influence of physical or chemical factors such as temperature,stress and pH value on the fluorescence spectrum of organic dye rhodamine B (RhB) was researched experimentally.An RhB/H610-resin composite and aqueous solutions of RhB were excited under a diode laser with a wavelength of 405 nm.Then,the fluorescence spectra were obtained.The peak shift and the newly proposed barycenter shift of the emission band were employed to characterize the effect of the environmental factors on the band location.The sensing functions of waveband barycenter λB with temperature,stress and pH value were respectively fitted linearly.The result shows that the barycenter method can effectively eliminate the random noise which mainly originated from the fluctuation of fluorescence intensity and light detector.Hence a finer precision was achieved in comparison with the peak shift method.The relative sensitivities of the barycentric method to the temperature,compressive stress and pH value are 0.026％/℃,0.09％/MPa and 0.34％ respectively.Taking the advantages of the high fluorescence efficiency and biological histocompatibility of RhB,the fluorescent sensing with RhB is a promising candidate for characterization of biological samples.Particularly,it is suitable for applications in the real-time monitoring of microwave treatment.关键词
荧光传感/罗丹明B/频移/温度/应力/pH值Key words
fluorescent sensing/rhodamine B/band shift/temperature/stress/pH value分类
化学化工引用本文复制引用
张巍巍,史凯兴,赵小兵,秦朝菲..发光染料罗丹明B的荧光传感特性[J].光学精密工程,2017,25(3):591-596,6.基金项目
国家自然科学基金资助项目(No.61167007,No.61665008) （No.61167007,No.61665008）
航空科学基金项目(No.2016ZD56006) （No.2016ZD56006）
江西省青年科学家培养计划基金资助项目(No.20153BCB23037) （No.20153BCB23037）
