A new fluorescent chemosensor for Hg2+ in aqueous solution. (18th April 2012)

• Record Type: Journal Article
• Authors: Quang, Duong Tuan; Hop, Nguyen Van; Luyen, Nguyen Dinh; Thu, Ha Phuong; Oanh, Doan Yen; Hien, Nguyen Khoa; Hieu, Nguyen Van; Lee, Min Hee; Kim, Jong Seung
• Is Part Of: Luminescence. Volume 28:Number 2(2013:Mar./Apr.)
• Page Start: 222
• Page End: 225
• Publication Date: 2012-04-18
• Subjects: Schiff base -- fluorescent chemosensor -- Hg2+ determination -- aqueous solution; Luminescence -- Periodicals; Bioluminescence -- Periodicals; Chemiluminescence -- Periodicals; Luminescence -- Periodicals; 535.35
• DOI: 10.1002/bio.2368
• Languages: English
• ISSNs: 1522-7235

Abstract

ABSTRACT: We prepared an aminothiourea‐derived Schiff base (DA) as a fluorescent chemosensor for Hg 2+ ions. Addition of 1 equiv of Hg 2+ ions to the aqueous solution of DA gave rise to an obvious fluorescence enhancement and the subsequent addition of more Hg 2+ induced gradual fluorescence quenching. Other competing ions, including Pb 2+, Cd 2+, Cr 3+, Zn 2+, Fe 2+, Co 3+, Ni 2+, Ca 2+, Mg 2+, K + and Na +, did not induce any distinct fluorescence changes, indicating that DA can selectively detect Hg 2+ ions in aqueous solution. Copyright © 2012 John Wiley & Sons, Ltd.