A Coumarin-Based Fluorescent Chemosensor for Zn2+ in Aqueous Ethanol Media

被引：33

作者：

Su, Zhuan ^{[1
]}

Chen, Kangyu ^{[1
]}

Guo, Yuan ^{[1
]}

Qi, Haiping ^{[1
]}

Yang, Xiao-Feng ^{[1
]}

Zhao, Minglei ^{[1
]}

机构：

[1] NW Univ Xian, Key Lab Synthet & Nat Funct Mol Chem, Minist Educ, Dept Chem, Xian 710069, Peoples R China

来源：

JOURNAL OF FLUORESCENCE | 2010年 / 20卷 / 04期

关键词：

Zinc(II) ion; Coumarin; Chemosensor; Photoinduced electron transfer; NEAR-INFRARED REGION; LIVING CELLS; ZINC ION; SENSOR; WATER; PROBE; SENSITIVITY; SELECTIVITY; CONJUGATE; EMISSION;

D O I：

10.1007/s10895-010-0628-y

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A coumarin-based fluorescent chemosensor 1 for Zn2+ was designed and synthesized. Compound 1 exhibits lower background fluorescence due to intramolecular photoinduced electron transfer. However, upon mixing with Zn2+ in 30% (v/v) aqueous ethanol, a "turn-on" fluorescence emission is observed. The fluorescence emission increases linearly with Zn2+ concentration in the range 0.5-10 mu mol L-1 with a detection limit of 0.29 mu mol L-1. No remarkable emission enhancement was, however, observed for other metal ions. The proposed chemosensor was applied to the determination of Zn2+ in water samples with satisfactory results.

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收藏

页码：851 / 856

页数：6

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