安庆师范大学学报（自然科学版）2025，Vol.31Issue(3)：77-84,8.DOI:10.13757/j.cnki.cn34-1328/n.2025.03.012
苯并噻唑类荧光探针N-BPA在苦味酸检测中的应用
A New Benzothiazole Fluorescent Probe N-BPA Was Synthesized for the Detection of Picric Acid
摘要
Abstract
A new fluorescent probe N-BPA was synthesized based on the parent nucleus 2-methyl-benzothiazole by nitrifi-cation,catalytic hydrogenation,Sonogashira coupling,and Knoevenagel condensation reaction.The fluorescence properties of N-BPA were discussed.The spectral property study found that the probe molecule has a large Stokes shift of 148 nm,which ef-fectively avoids self-quenching during the probe imaging process,and a high fitting binding constant of 1.285×104 L/mol,indi-cating that the binding of the probe molecule and picric acid is significantly enhanced with the increase of concentration,and the detection limit can reach 5.42 × 10-4 mol/L.And other common nitro compounds did not significantly interfere with it,the fluorescent probe has a good picric acid recognition ability without disturbing by other common nitro compounds.关键词
荧光探针/苯并噻唑/苦味酸/Stokes位移Key words
fluorescent probe/benzothiazole/picric acid/Stokes shift分类
化学化工引用本文复制引用
张春侠,燕宇航,堵爱农,赵旭飞,陈太杰..苯并噻唑类荧光探针N-BPA在苦味酸检测中的应用[J].安庆师范大学学报（自然科学版）,2025,31(3):77-84,8.基金项目
安徽省高等学校自然科学研究重点项目(KJ2016A425) （KJ2016A425）
