新型荧光试剂1-(8喹-啉)-3-(3,5二-溴吡啶)-三氮烯的合成及其分析应用  

Synthesis and Analytic Application of 1-(8-Quinoline)-3-(3,5-Dibromo-Pyridyl)-Triazene

作　　者：何立芳[1] 章汝平[1] 卢晓春[1] 张夏红[1] 伍奕[1] 

机构地区：[1]龙岩学院化学与材料工程系,福建省龙岩市东肖北路1号364000

出　　处：《光谱实验室》2011年第4期1649-1653,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：福建省科技厅科技计划重点项目(2010Y0040);福建省科技厅资助省属高校基金(2007F5081);福建省教育厅科学研究资助项目(JB08234)

摘　　要：将具有荧光特性的8氨-基喹啉与吡啶类试剂结合,首次合成了标题化合物1-(8喹-啉)-3-(3,5二-溴吡啶)-三氮烯(QBPyT)。其结构经过元素分析、红外光谱、核磁共振谱证实。研究表明,在碱性介质中,该试剂在λex/λem=248nm/496nm处产生强荧光,并且能被Sb(Ⅲ)荧光增强。基于此,建立了QBPyT测定Sb(Ⅲ)的新型荧光分析法。该方法的线性范围为1.6×10-7—1.2×10-5m ol/L,检出限为9.0×10-8m ol/L。将其应用于矿样中Sb(Ⅲ)的测定,结果令人满意。The title compound 1-（8-quinoline）-3-（3,5-dibromo-pyridyl）-triazene（QBPyT） was synthesized from the epipolic 8-aminoquinoline combination with pyridine reagent,whose substance was confirmed by elemental analysis,infrared spectra and 1H NMR.The excitation and emission wavelengths of product had the intense fluorescence at 248nm and 496nm in a basic medium,respectively,and the fluorescence intensity was enhanced by Sb（Ⅲ）.Based on the mechanism,the new fluorescence analysis for the determination of Sb（Ⅲ） by QBPyT was established.The linear range for method was 1.6×10^-7—1.2×10^-5mol/L,with a detection limit 9.0×10^-8mol/L.The method was used for the determination of trace Sb（Ⅲ） in ore sampleswith satisfactory results.

关 键 词：1-(8喹-啉)-3-(3 5二-溴吡啶)-三氮烯 锑离子 荧光增强 

分 类 号：O626[理学—有机化学] O657.61[理学—化学]