A Novel Hg2+ Selective Ratiometric Fluorescent Chemodosimeter Based on an Intramolecular FRET Mechanism

被引：83

作者：

Shang, Gui-Qin ^{[1
]}

Gao, Xia ^{[1
]}

Chen, Mei-Xiu ^{[1
]}

Zheng, Hong ^{[1
]}

Xu, Jin-Gou ^{[1
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Minist Educ,Key Lab Analyt Sci, Xiamen 361005, Peoples R China

来源：

JOURNAL OF FLUORESCENCE | 2008年 / 18卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Fluorescence; Chemosensor; Ratiometric; FRET; Hg2+;

D O I：

10.1007/s10895-008-0365-7

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A irreversible Hg2+ selective ratiometric fluorescence probe FR, a fluorescein fluorophore linked to a rhodamine B hydrazide by a thiourea spacer, was designed and synthesized. The developed probe FR exhibited great ratiometric fluorescence enhancement and remarkable yellow-magenta color change toward Hg2+ with excellent selectivity in aqueous acetone solution, and the ratiometric fluorescence response to Hg2+ was not interfered by other metal cations including Fe3+, Co2+, Ni2+, Cr3+, Zn2+, Pb2+, Cd2+, Ca2+, Mg2+, Ba2+ and Mn2+. The linear range and the detection limit of this supposed ratiometric fluorescence method for Hg2+ were 0.0-10.0 x 10(-6) and 5x10(-8) M, respectively.

引用

页码：1187 / 1192

页数：6

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