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Article (Scientific journals)
Determination of arsenic (III) at a nano gold modified solid carbon paste electrode
Sakira, Abdoul Karim; Somé, Issa Touridomon; Ziemons, Eric et al.
2015In Electroanalysis, 27, p. 309-316
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Keywords :
Arsenic; Carbon paste; Glutathione; Gold nanoparticles; Underground water
Abstract :
[en] A selective and sensitive electroanalytical method was developed for arsenic determination based on a nanogold (AuNP) modified solid carbon paste work- ing electrode (SCPE) modified in two steps (i) physisorp- tion and (ii) additional electrodeposition of nanogold par- ticles in the presence of iodide. Copper(II) interference was solved by covering the gold layer by a self assembled mono layer (SAM) of glutathione. Using DPASV a linear response of the signal was obtained as a function of As(III) in the concentration range 0.05–20mM (4– 1498 ppb) with a limit of detection of 0.01 mM (0.9 ppb). Sample stirring and degassing were not needed. Applica- tion to the determination of arsenic(III) and (V) in un- derground water samples from Burkina Faso was success- fully achieved.
Research Center/Unit :
Centre Interfacultaire de Recherche du Médicament - CIRM
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Sakira, Abdoul Karim
Somé, Issa Touridomon
Ziemons, Eric  ;  Université de Liège - ULiège > Département de pharmacie > Département de pharmacie
Dejaegher, Bieke
Mertens, Dominique
Hubert, Philippe  ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Kauffmann, Jean-Michel
Language :
English
Title :
Determination of arsenic (III) at a nano gold modified solid carbon paste electrode
Publication date :
2015
Journal title :
Electroanalysis
ISSN :
1040-0397
eISSN :
1521-4109
Publisher :
Wiley - VCH Verlag GmbH & Co., Germany
Volume :
27
Pages :
309-316
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Contribution à l'amélioration de l'accès à une eau potable de qualité pour les populations de la région du nord du Burkina Faso
Funders :
CUD - Commission Universitaire pour le Développement
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