Fluorescent Turn-on Probe Based on Napthalimide Fused Triphenylamine Unit for Quickly Detecting Thiophenol in Aqueous Solution  

作　　者：SUN Jiaojiao CAO Jian CHENG Hailong WANG Jincheng WANG Shuxin 

机构地区：[1]School of Chemistry atui Chemical Engineering,Shanghai University of Engineering Science,Shanghai 201620,P.R.China [2]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,P.R.China

出　　处：《Chemical Research in Chinese Universities》2019年第6期990-996,共7页高等学校化学研究（英文版）

摘　　要：A novel molecular probe system(NapTpa-dnbs)was prepared based on the chromophore napthalimide fused triphenylamine unit.NapTpa-dnbs was tuned to absorb a large fraction of UV and near-infrared radiation.The turn-on fluorescent response of NapTpa-dnbs to thiophenol caused an increased fluorescent emission by a factor of 11.5 at 597 nm in a PBS buffer solution.The photoinduced electron transform(PET)process of the probe became less feasible with the addition of thiophenol than that of the free probe.NapTpa-dnbs demonstrated high selective and sensitive detection toward thiophenol with respect to other competitive amine acids.The detection limit was determined to be 2.03×10^?7 mol/L thiophenol.The sensing process is rapid(3 min).NapTpa-dnbs can accurately detect the thiophenol with a qualified recovery in real water samples.NapTpa-dnbs on test strips can detect the thiophenol vapour in the atmosphere.

关 键 词：Napthalimide PROBE THIOPHENOL Tum-on FLUORESCENT 

分 类 号：O62[理学—有机化学]