A luminogenic lanthanide-based probe for the highly selective detection of nanomolar sulfide levels in aqueous samples

Margaret Aulsebrook, Suvendu Biswas, Franklin M Leaver, Michael R Grace, Bim Graham, Amy M Barrios, Kellie L Tuck

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28 Citations (Scopus)

Abstract

A bimetallic terbium(III)/copper(II) complex (Tb-1Cu2+) for the time-gated luminescent detection of hydrogen sulfide in aqueous samples is reported. The probe shows excellent selectivity towards HS- over various anions and cations, including the ions common to natural waterways and waste water samples, displaying a 73-fold increase in luminescence in the presence of sulfide. The probe exhibits extremely fast reaction times and a low limit of detection (130 nM). The probe was used to quantify sulfide in an industrial ‘‘sour water’’ sample, with the result in excellent agreement with those from two independent assay methods (methylene blue and AzMC).
Original languageEnglish
Pages (from-to)4911-4914
Number of pages4
JournalChemical Communications
Volume53
Issue number36
DOIs
Publication statusPublished - 2017

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