A Highly Selective Turn-On Fluorescent Chemosensor for Zinc Ion in Aqueous Media

被引：5

作者：

Liu, Zeng-chen ^{[1
,2
]}

Yang, Zheng-yin ^{[4
,5
]}

Li, Yan-xia ^{[1
,2
]}

Wang, Bao-dui ^{[4
,5
]}

Li, Yong ^{[3
]}

Li, Tian-rong ^{[4
,5
]}

Ding, Yong-jie ^{[1
,2
]}

机构：

[1] Zhoukou Normal Univ, Coll Chem, Zhoukou 466001, Peoples R China

[2] Key Lab Rare Earth Funct Mat Applicat, Zhoukou 466001, Peoples R China

[3] China Univ Geosci, Fac Mat Sci & Chem Engn, Wuhan 430074, Peoples R China

[4] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

[5] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF FLUORESCENCE | 2013年 / 23卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Chemosensor; Zn(II) selectivity; 3-carbaldehyde chromone-rhodamine6G hydrazone; Turn on; Binding constant; HG2+; CHEMODOSIMETER; SENSOR;

D O I：

10.1007/s10895-013-1255-1

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

In the paper, a novel rhodamine6G based fluorescent chemosensor bearing 3-carbaldehyde chromone was designed and synthesized. According to the fluorescence behavior toward several metal ions, it showed highly selectivity and sensitivity to Zn(II) over other commonly coexistent metal ions (Cu(II), Cd(II), Hg(II), Mg(II), K(I), Pb(II), Fe(III) and Cr(III)) in aqueous environment (pH = 7.4). Meanwhile the binding constant between Zn(II) and chemosensor achieved 6.21 x 10(11) M-1 in aqueous media. Moreover, according to the Job plot, 1:1 stoichiometry between Zn(II) and sensor was deduced in aqueous media (pH = 7.4). The good selectivity and sensitivity in aqueous media effectively enhanced the application value of the fluorescent chemosensor for Zn(II).

引用

页码：1239 / 1245

页数：7

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