Rapid and highly sensitive detection of mercury ions using a fluorescence-based paper test strip with an N-alkylaminopyrazole ligand as a receptor

Gemma Aragay, Helena Montón, Josefina Pons, Mercè Font-Bardía, Arben Merkoi

Research output: Contribution to journalArticleResearchpeer-review

44 Citations (Scopus)

Abstract

Easy-to-synthesize N-alkylaminopyrazole ligands are used in a proof-of-concept fluorescent sensor that can operate as a simple 'paper test' for rapid and highly sensitive mercury detection in water. A significant enhancement of fluorescence emission in aqueous media for the Hg2+ detection at concentrations lower than 0.1 ppb is achieved. A linear range from 10 to 100 ppb [Hg2+] was obtained in the paper-based system. The respective Turn-ON and Turn-OFF fluorescence mechanisms in the paper test and water solution (pH 1) systems are also shown. © The Royal Society of Chemistry 2012.
Original languageEnglish
Pages (from-to)5978-5983
JournalJournal of Materials Chemistry
Volume22
Issue number13
DOIs
Publication statusPublished - 7 Apr 2012

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