A selective, fluorescent probe for Hg2+ detection in aqueous solution

Dexing Zeng, Yi Chen

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A novel fluorescent probe, 5-(2-benzothzaole)-2-thiophene boronic acid (1), for Hg2+ detection in aqueous solution was synthesized. (1) exhibited very strong fluorescence emission (φ{symbol} = 0.92) in tris-HCl (pH 7.42) buffer aqueous solution. It was found that the fluorescence emission of (1) was quenched significantly upon addition of Hg2+ in buffer aqueous solution, whereas no marked fluorescence quenching was detected with addition of other metal ions (Ba2+, Ca2+, Cd2+, Co2+, Cu2+, Mg2+, Fe2+, Fe3+, Ni2+, Pb2+, Zn2+, Na+, K+) expect for Fe2+ and Fe3+, for which a small fluorescence quenching was detected in same condition. Competition experiment showed that no obvious interference was observed in its fluorescence while (1) performed the titration with Hg2+ in the different mixtures of metal ions.

Original languageEnglish (US)
Pages (from-to)121-124
Number of pages4
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume186
Issue number2-3
DOIs
StatePublished - Feb 25 2007
Externally publishedYes

Fingerprint

Fluorescent Dyes
Fluorescence
aqueous solutions
fluorescence
probes
Metal ions
Quenching
metal ions
Buffers
buffers
quenching
Boronic Acids
Thiophenes
Thiophene
thiophenes
Titration
titration
interference
acids
Acids

Keywords

  • Aqueous solution
  • Fluorescent probe
  • Hg detection

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Cite this

A selective, fluorescent probe for Hg2+ detection in aqueous solution. / Zeng, Dexing; Chen, Yi.

In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 186, No. 2-3, 25.02.2007, p. 121-124.

Research output: Contribution to journalArticle

@article{bb9fb4fbd5784a2a83002b176c86b018,
title = "A selective, fluorescent probe for Hg2+ detection in aqueous solution",
abstract = "A novel fluorescent probe, 5-(2-benzothzaole)-2-thiophene boronic acid (1), for Hg2+ detection in aqueous solution was synthesized. (1) exhibited very strong fluorescence emission (φ{symbol} = 0.92) in tris-HCl (pH 7.42) buffer aqueous solution. It was found that the fluorescence emission of (1) was quenched significantly upon addition of Hg2+ in buffer aqueous solution, whereas no marked fluorescence quenching was detected with addition of other metal ions (Ba2+, Ca2+, Cd2+, Co2+, Cu2+, Mg2+, Fe2+, Fe3+, Ni2+, Pb2+, Zn2+, Na+, K+) expect for Fe2+ and Fe3+, for which a small fluorescence quenching was detected in same condition. Competition experiment showed that no obvious interference was observed in its fluorescence while (1) performed the titration with Hg2+ in the different mixtures of metal ions.",
keywords = "Aqueous solution, Fluorescent probe, Hg detection",
author = "Dexing Zeng and Yi Chen",
year = "2007",
month = "2",
day = "25",
doi = "10.1016/j.jphotochem.2006.07.019",
language = "English (US)",
volume = "186",
pages = "121--124",
journal = "Journal of Photochemistry and Photobiology A: Chemistry",
issn = "1010-6030",
publisher = "Elsevier",
number = "2-3",

}

TY - JOUR

T1 - A selective, fluorescent probe for Hg2+ detection in aqueous solution

AU - Zeng, Dexing

AU - Chen, Yi

PY - 2007/2/25

Y1 - 2007/2/25

N2 - A novel fluorescent probe, 5-(2-benzothzaole)-2-thiophene boronic acid (1), for Hg2+ detection in aqueous solution was synthesized. (1) exhibited very strong fluorescence emission (φ{symbol} = 0.92) in tris-HCl (pH 7.42) buffer aqueous solution. It was found that the fluorescence emission of (1) was quenched significantly upon addition of Hg2+ in buffer aqueous solution, whereas no marked fluorescence quenching was detected with addition of other metal ions (Ba2+, Ca2+, Cd2+, Co2+, Cu2+, Mg2+, Fe2+, Fe3+, Ni2+, Pb2+, Zn2+, Na+, K+) expect for Fe2+ and Fe3+, for which a small fluorescence quenching was detected in same condition. Competition experiment showed that no obvious interference was observed in its fluorescence while (1) performed the titration with Hg2+ in the different mixtures of metal ions.

AB - A novel fluorescent probe, 5-(2-benzothzaole)-2-thiophene boronic acid (1), for Hg2+ detection in aqueous solution was synthesized. (1) exhibited very strong fluorescence emission (φ{symbol} = 0.92) in tris-HCl (pH 7.42) buffer aqueous solution. It was found that the fluorescence emission of (1) was quenched significantly upon addition of Hg2+ in buffer aqueous solution, whereas no marked fluorescence quenching was detected with addition of other metal ions (Ba2+, Ca2+, Cd2+, Co2+, Cu2+, Mg2+, Fe2+, Fe3+, Ni2+, Pb2+, Zn2+, Na+, K+) expect for Fe2+ and Fe3+, for which a small fluorescence quenching was detected in same condition. Competition experiment showed that no obvious interference was observed in its fluorescence while (1) performed the titration with Hg2+ in the different mixtures of metal ions.

KW - Aqueous solution

KW - Fluorescent probe

KW - Hg detection

UR - http://www.scopus.com/inward/record.url?scp=33846507160&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846507160&partnerID=8YFLogxK

U2 - 10.1016/j.jphotochem.2006.07.019

DO - 10.1016/j.jphotochem.2006.07.019

M3 - Article

VL - 186

SP - 121

EP - 124

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

SN - 1010-6030

IS - 2-3

ER -