一种喹啉类分子对硝基芳香化合物和阴离子的荧光传感研究
Fluorescence Sensing Investigation of One Quinoline-Based Molecule for Nitroaromatic Compounds and Anions
张莉艳 1徐志超 1魏先文1
作者信息
- 1. 安徽工业大学化学与化工学院 马鞍山 243032
- 折叠
摘要
以2-(1H-苯并[d]咪唑基)-8-羟基喹啉和2-氯甲基吡啶盐酸盐为原料合成了一种喹啉类功能分子(BIPQ),相比其他有机溶剂,化合物BIPQ的N,N-二甲基乙酰胺溶液在452nm显示出最强荧光发射.硝基芳香化合物2,4,6-三硝基苯酚(TNP)和阴离子Cr2O72-对BIPQ的荧光表现出明显的猝灭效应,猝灭常数KSV分别为5.9×103 L/mol和3.8×103L/mol.BIPQ在荧光检测TNP和Cr2O72-过程中对其他硝基芳香化合物和阴离子表现出很好的抗干扰能力.此外,本文还研究了化合物BIPQ有效荧光检测TNP和Cr2O72-的溶液pH范围,并将BIPQ用于实际水样中TNP和Cr2O72-的荧光检测.
Abstract
One quinoline-based functional molecule(BIPQ)was synthesized by using 2-(1H-benzo[d]imidazol-1-yl)-8-hydroxyquinoline and 2-chloromethylpyridine hydrochloride as raw materials.Compared to other organic solvents,the N,N-dimethylacetamide solution of compound BIPQ showed the strongest fluorescence emission intensity at 452nm.The fluorescence sensing performance of compound BIPQ for nitroaromatic compounds and anions revealed that nitroaromatic compound 2,4,6-trinitrophenol(TNP)and anion Cr2O72-showed significant quenching effects on the fluorescence intensity of BIPQ,with quenching constants(KSV)of 5.9×103 L·mol-1 and 3.8×103 L·mol-1,respectively.The anti-interference experiments results showed that BIPQ displayed high selectivity toward TNP and Cr2O72 over other competing nitroaromatic compounds and anions,respectively.In addition,the pH range for the effective fluorescence detection of TNP and Cr2O72-in BIPQ solution was investigated,and BIPQ was also applied to the fluorescence detection of TNP and Cr2O72-in actual water samples.
关键词
喹啉类分子/三硝基苯酚/Cr2O72-离子/荧光传感Key words
Quinoline-based molecule/Trinitrophenol/Cr2O72-anion/Fluorescence sensing引用本文复制引用
出版年
2024
NETL
NSTL
万方数据