A colorimetric and ratiometric fluorescent probe for sulfite based on an intramolecular cleavage mechanism

被引:32
作者
Hou, Peng [1 ]
Chen, Song [1 ]
Voitchovsky, Kislon [1 ]
Song, Xiangzhi [1 ,2 ,3 ]
机构
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
[2] Minist Educ, Key Lab Resource Chem Nonferrous Met, Beijing, Peoples R China
[3] State Key Lab Powder Met, Changsha, Hunan, Peoples R China
关键词
colorimetric; fluorescent probe; sulfite; SULFUR-DIOXIDE; BISULFITE; SENSOR; ACID; SO2;
D O I
10.1002/bio.2616
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A colorimetric and ratiometric fluorescent sulfite probe, the levulinate of 4-hydroxynaphthalimide, was successfully synthesized from 4-hydroxy-naphthalimide and levulinic acid. Through sulfite-mediated intramolecular cleavage, the probe was converted into 4-hydroxynaphthalimide, which when excited at 450 nm, displayed a large Stokes shift due to the intramolecular charge transfer process. The probe exhibited high selectivity and sensitivity towards sulfite over other typical anionic species (F-, Cl-, Br-, I-, HPO42-, SO42 -, NO3-, AcO-, ClO4-, HCO3-) in HEPES-buffered solution (25 mM, pH 7.4, 50% acetonitrile, v/v). Copyright (C) 2013 John Wiley & Sons, Ltd.
引用
收藏
页码:749 / 753
页数:5
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