Highly sensitive and selective fluorescence sensor based on functional SBA-15 for detection of Hg2+ in Aqueous Media

被引：78

作者：

Song, Chunxia ^{[1
]}

Zhang, Xiaolin ^{[1
]}

Jia, Cuiying ^{[1
]}

Zhou, Peng ^{[1
,2
]}

Quan, Xie ^{[2
]}

Duan, Chunying ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China

[2] Dalian Univ Technol, Sch Environm & Biol Sci & Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China

来源：

TALANTA | 2010年 / 81卷 / 1-2期

关键词：

Chemosensor; Hg2+; Rhodamine B; Fluorescent probe; SBA-15; MESOPOROUS SILICA; MERCURY; DESIGN; HG(II); CHEMOSENSOR;

D O I：

10.1016/j.talanta.2009.12.047

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new Rhodamine-based chemosensor RBSN designed for the selective detection of Hg2+ in aqueous media is synthesized and structural characterized. It features brightness blue emission in the presence of Hg2+ with the fluorescent detection limit for Hg2+ in aqueous media being ppb levels and exhibits excellent Hg2+-specific luminescence enhancement over various competitive cations, including alkali and alkaliearth, the first-row transition metals and heavy metals. By immobilizing RBSN to the mesoporous SBA-15, a highly selective and sensitive chemosensor toward mercury cations in aqueous solution was achieved. RBSN/SBA-15 could quantitatively determinate mercury cations at ppb level in the practical environmental media, suggesting the possibility for real-time quantitative detection of Hg2+ and the convenience for potential application in toxicological and environmental science. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：643 / 649

页数：7

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