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Indexed by:期刊论文

Date of Publication:2012-05-01

Journal:JOURNAL OF FLUORESCENCE

Included Journals:SCIE、EI、PubMed

Volume:22

Issue:3

Page Number:945-951

ISSN No.:1053-0509

Key Words:Fluorescent sensor; 2-aminophenol; Hg2+; Sulphide-rich environments

Abstract:Detection of Hg2+ in complex natural environmental conditions is extremely challenging, and no entirely successful methods currently exist. Here we report an easy-to-prepare fluorescent sensor with 2-aminophenol as Hg2+ receptor, which exhibits selective fluorescence enhancement toward Hg2+ over other metal ions. Especially, the fluorescence enhancement was unaffected by anions and cations existing in environment and organism. Moreover, can detect Hg2+ in sulphide-rich environments without cysteine, S2- or EDTA altering the fluorescence intensity. Consequently, is capable of distinguishing between safe and toxic levels of Hg2+ in more complicated natural water systems with detection limit a parts per thousand currency sign2 ppb.