文献类型：期刊文献

中文题名：Highly Selective Fluorescence Turn-on Chemosensor Based on Naphthalimide Derivatives for Detection of Trivalent Chromium Ions

英文题名：Highly Selective Fluorescence Turn-on Chemosensor Based on Naphthalimide Derivatives for Detection of Trivalent Chromium Ions

作者：Chen Zhijun[1,2];Wang Limin[1,2,3];Zou Gang[1,2];Teng Mingshuang[1,2];Yu Jianjun[1,2]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325035, Zhejiang, Peoples R China

年份：2012

卷号：30

期号：12

起止页码：2844

中文期刊名：Chinese Journal of Chemistry

外文期刊名：CHINESE JOURNAL OF CHEMISTRY

收录：CSTPCD;;Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000312942500021)】；CSCD:【CSCD2011_2012】；

基金：The authors gratefully acknowledge the National Nature Science Foundation of China (21272069, 20672035), the support from the Fundamental Research Funds for the Central Universities, the Opening Foundation of Zhejiang Provincial Top Key Discipline, and Baihehua Group.

语种：英文

中文关键词：trivalent chromium ions; fluorescent probe; fluorescence enhancement; high selectivity, high sensitivity

外文关键词：trivalent chromium ions; fluorescent probe; fluorescence enhancement; high selectivity; high sensitivity

摘要：A new fluorescent probe, NPQ-C, was synthesized. NPQ-C was based on the naphthalimide derivatives and exhibited high selectivity and sensitivity for Cr3＋ ions. As a Cr3＋-amplified fluorescent probe, Its fluorescence spectrum showed 5.5-fold enhancement in the intensity of the signal at 500 nm on binding with the Cr3＋. Based on the fluorescence titration spectra and Job＇s-plot analysis, binding mode of NPQ-C with Cr3＋ was proposed. Fluorescence intensity was linear with concentration of Cr3＋ cation in a range from 0 to 10 μmol·L-1. NPQ-C was also sensitive for Cr3＋. The detection limit was calculated to be 0.20 pmol.L-1 which indicated that NPQ-C was sensitive to Cr3＋.
A new fluorescent probe, NPQ-C, was synthesized. NPQ-C was based on the naphthalimide derivatives and exhibited high selectivity and sensitivity for Cr3+ ions. As a Cr3+-amplified fluorescent probe, Its fluorescence spectrum showed 5.5-fold enhancement in the intensity of the signal at 500 nm on binding with the Cr3+. Based on the fluorescence titration spectra and Job's-plot analysis, binding mode of NPQ-C with Cr3+ was proposed. Fluorescence intensity was linear with concentration of Cr3+ cation in a range from 0 to 10 mu mol.L-1. NPQ-C was also sensitive for Cr3+. The detection limit was calculated to be 0.20 mu mol.L-1 which indicated that NPQ-C was sensitive to Cr3+.