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2-溴甲基萘荧光和室温磷光性质研究
Study on Properties of Fluorescence and Room Temperature Phosphorescence of 2 Bromomethyl Naphthalene
【摘要】 研究了2-溴甲基萘 (2-BrMN) 的荧光及磷光性质。2-溴甲基萘是一种优良的荧光试剂,λex /λem =274/334 nm ,其浓度在1.0×10- 6 ~1.2×10- 4 m ol·L- 1范围内与荧光强度呈良好的线性关系,相关系数r=0.999, 最低检测限为4.7×10- 8 m ol·L- 1。以β-环糊精(β-CD)作保护剂和1,2-二溴丙烷(DBP) 为重原子微扰剂的2-BrMN/β-CD/DBP体系能产生具有分析意义CD-RTP信号, λex /λem = 271/493,521 nm ,2-BrMN浓度参1.0×10- 5~1.2×10- 4 m ol·L- 1 范围内与室温磷光 (RTP) 强度呈良好线性关系, 相关系数r =0.997, 最低检测限为2.7×10- 6 m ol·L- 1 。研究结果显示该试剂可望作为发光衍生试剂进一步研究开发
【Abstract】 The properties of fluorescence and room temperature phosphorescense (RTP) of 2 Bromomethyl naphthalene (2 BrMN)were studied.The results show that the wavelength for maximum fluorescence of 2 BrMN is λ ex /λ em =274/334 nm 。The fluorescence intersity is proportional to the concentration of 2BrMN in the range of 1 0×10 -6 -1 2×10 -4 mol·L -1 ,and the detection limit is 4 7×10 -8 mol·L -1 .The RTP signal of 2 BrMN was induced by β cyclodextrin (β CD ) in the presence of dibromopropane (DBP) acting as a heavy atom perturbation.The RTP intensity is linear for 2 BrMN /β CD/DBP systems of 2 BrMN concentration in the range of 1 0×10 -5 —1 2×10 -4 mol·L -1 (λ ex /λ em =271/493,521 nm ),and the detection limit is 2 7×10 -6 mol·L -1 .
【Key words】 Bromomethyl naphthalene; Fluorescence; Room temperature phosphorescence;
- 【文献出处】 光谱学与光谱分析 ,SPECTROSCOPY AND SPECTRAL ANALYSIS , 编辑部邮箱 ,1999年06期
- 【分类号】O657.32
- 【被引频次】4
- 【下载频次】150