A highly sensitive and selective chemosensor for Pb(2+) based on quinoline–coumarin

In this study, a highly sensitive and selective fluorescent chemosensor, ethyl(E)-2-((2-((2-(7-(diethylamino)-2-oxo-2H-chromene-3-carbonyl)hydrazono)methyl)quinolin-8-yl)oxy)acetate (1), was synthesized and characterized by (1)H NMR, (13)C NMR and ESI-MS. Sensor 1 showed an “on–off” fluorescence res...

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Autores principales: Meng, Xianjiao, Cao, Duanlin, Hu, Zhiyong, Han, Xinghua, Li, Zhichun, Ma, Wenbing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9086682/
https://www.ncbi.nlm.nih.gov/pubmed/35548814
http://dx.doi.org/10.1039/c8ra04935a
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author Meng, Xianjiao
Cao, Duanlin
Hu, Zhiyong
Han, Xinghua
Li, Zhichun
Ma, Wenbing
author_facet Meng, Xianjiao
Cao, Duanlin
Hu, Zhiyong
Han, Xinghua
Li, Zhichun
Ma, Wenbing
author_sort Meng, Xianjiao
collection PubMed
description In this study, a highly sensitive and selective fluorescent chemosensor, ethyl(E)-2-((2-((2-(7-(diethylamino)-2-oxo-2H-chromene-3-carbonyl)hydrazono)methyl)quinolin-8-yl)oxy)acetate (1), was synthesized and characterized by (1)H NMR, (13)C NMR and ESI-MS. Sensor 1 showed an “on–off” fluorescence response to Pb(2+) with a 1 : 1 binding stoichiometry in CH(3)CN/HEPES buffer medium (9 : 1 v/v). The detection limit of sensor 1 to Pb(2+) was determined to be 0.5 μM, and the stable pH range for Pb(2+) detection was from 4 to 8.
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spelling pubmed-90866822022-05-10 A highly sensitive and selective chemosensor for Pb(2+) based on quinoline–coumarin Meng, Xianjiao Cao, Duanlin Hu, Zhiyong Han, Xinghua Li, Zhichun Ma, Wenbing RSC Adv Chemistry In this study, a highly sensitive and selective fluorescent chemosensor, ethyl(E)-2-((2-((2-(7-(diethylamino)-2-oxo-2H-chromene-3-carbonyl)hydrazono)methyl)quinolin-8-yl)oxy)acetate (1), was synthesized and characterized by (1)H NMR, (13)C NMR and ESI-MS. Sensor 1 showed an “on–off” fluorescence response to Pb(2+) with a 1 : 1 binding stoichiometry in CH(3)CN/HEPES buffer medium (9 : 1 v/v). The detection limit of sensor 1 to Pb(2+) was determined to be 0.5 μM, and the stable pH range for Pb(2+) detection was from 4 to 8. The Royal Society of Chemistry 2018-10-02 /pmc/articles/PMC9086682/ /pubmed/35548814 http://dx.doi.org/10.1039/c8ra04935a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Meng, Xianjiao
Cao, Duanlin
Hu, Zhiyong
Han, Xinghua
Li, Zhichun
Ma, Wenbing
A highly sensitive and selective chemosensor for Pb(2+) based on quinoline–coumarin
title A highly sensitive and selective chemosensor for Pb(2+) based on quinoline–coumarin
title_full A highly sensitive and selective chemosensor for Pb(2+) based on quinoline–coumarin
title_fullStr A highly sensitive and selective chemosensor for Pb(2+) based on quinoline–coumarin
title_full_unstemmed A highly sensitive and selective chemosensor for Pb(2+) based on quinoline–coumarin
title_short A highly sensitive and selective chemosensor for Pb(2+) based on quinoline–coumarin
title_sort highly sensitive and selective chemosensor for pb(2+) based on quinoline–coumarin
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9086682/
https://www.ncbi.nlm.nih.gov/pubmed/35548814
http://dx.doi.org/10.1039/c8ra04935a
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