Effectiveness study of sensor based on modified cavity microelectrode by Algerian humic acid-polyaniline composites using square wave voltammetry
Identifieur interne : 000203 ( Main/Exploration ); précédent : 000202; suivant : 000204Effectiveness study of sensor based on modified cavity microelectrode by Algerian humic acid-polyaniline composites using square wave voltammetry
Auteurs : A. Terbouche [France] ; C. Ait-Ramdane-Terbouche [Algérie] ; Safia Djebbar [Algérie] ; O. Benali-Baitich [Algérie] ; Didier Hauchard [France]Source :
- Sensors and Actuators B: Chemical [ 0925-4005 ] ; 2012-05-04.
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Abstract
The response and efficiency of a new sensor based on cavity microelectrode (CME) modified with Algerian humic acid-polyaniline emeraldine base composites (HA-PEB) towards concentration of nickel and cadmium has been studied by square wave voltammetry technique (SWV). The developed mechanism is based on the electrochemical reduction of metal to CME modified with HA-PEB for different metal concentrations. The electrochemical study was performed in H2SO4 (0.5 mol/L) at room temperature in the potential range between −0.15 and −0.5 V towards saturated calomel electrode (SCE). The obtained results show that the CME modified with HA-PEB composites responds sensitively to variation of Ni2+ and Cd2+ concentrations, whatever the nature of humic acid. The measurements performed using CME modified with Yakouren humic acid (YHA)-PEB and Tamanrasset humic acid (THA)-PEB gave better sensitivity and good linearity of current versus metal concentration. The application of the sensor to detect heavy metals in water of the Sebaou River (Kabylia, Algeria) revealed that the CME modified with PEB does not detect different metals, while the sensor based on CME-HA-PEB has the ability to detect the presence of more metals in river water. Finally, it can be concluded that HA extracted from Algerian soils play an important role in the effectiveness of the sensor based on cavity microelectrode.
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DOI: 10.1016/j.snb.2012.04.085
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Benali-Baitich</name><affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-92874" status="VALID"><orgName>Université des Sciences et de la Technologie Houari Boumediene [Alger]</orgName><orgName type="acronym">USTHB</orgName><desc><address><addrLine>BP 32 EL ALIA 16111 BAB EZZOUAR ALGER</addrLine><country key="DZ"></country></address><ref type="url">http://www.usthb.dz/</ref></desc></hal:affiliation><country>Algérie</country></affiliation></author><author><name sortKey="Hauchard, Didier" sort="Hauchard, Didier" uniqKey="Hauchard D" first="Didier" last="Hauchard">Didier Hauchard</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-194938" status="VALID"> <orgName>Institut des Sciences Chimiques de Rennes</orgName> <orgName type="acronym">ISCR</orgName> <desc> <address> <addrLine>Campus de Beaulieu - Bât. 10 Avenue du Général Leclerc 35042 Rennes Cedex</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.scienceschimiques.univ-rennes1.fr</ref> </desc> <listRelation> <relation active="#struct-105160" type="direct"></relation> <relation active="#struct-300373" type="direct"></relation> <relation name="- RENNES" active="#struct-301232" type="direct"></relation> <relation name="UMR6226" active="#struct-441569" type="direct"></relation> </listRelation><tutelles><tutelle active="#struct-105160" type="direct"><org type="institution" xml:id="struct-105160" status="VALID"> <orgName>Université de Rennes 1</orgName> <orgName type="acronym">UR1</orgName> <desc> <address> <addrLine>2 rue du Thabor - CS 46510 - 35065 Rennes cedex</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.univ-rennes1.fr/</ref> </desc></org></tutelle><tutelle active="#struct-300373" type="direct"><org type="institution" xml:id="struct-300373" status="VALID"> <orgName>Ecole Nationale Supérieure de Chimie de Rennes</orgName> <desc> <address> <country key="FR"></country> </address> </desc></org></tutelle><tutelle name="- RENNES" active="#struct-301232" type="direct"><org type="institution" xml:id="struct-301232" status="VALID"> <orgName>Institut National des Sciences Appliquées</orgName> <orgName type="acronym">INSA</orgName> <desc> <address> <country key="FR"></country> </address> </desc></org></tutelle><tutelle name="UMR6226" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"> <idno type="ISNI">0000000122597504</idno> <idno type="IdRef">02636817X</idno> <orgName>Centre National de la Recherche Scientifique</orgName> <orgName type="acronym">CNRS</orgName> <date type="start">1939-10-19</date> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.cnrs.fr/</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Rennes</settlement><region type="region" nuts="2">Région Bretagne</region></placeName><orgName type="university">Université de Rennes 1</orgName><orgName type="institution" wicri:auto="newGroup">Université européenne de Bretagne</orgName></affiliation></author></analytic><idno type="DOI">10.1016/j.snb.2012.04.085</idno><series><title level="j">Sensors and Actuators B: Chemical</title><idno type="ISSN">0925-4005</idno><imprint><date type="datePub">2012-05-04</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>Algerian humic acid-polyaniline composite</term><term>Heavy metal sensor</term><term>Modified cavity microelectrode</term><term>Square wave voltammetry</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The response and efficiency of a new sensor based on cavity microelectrode (CME) modified with Algerian humic acid-polyaniline emeraldine base composites (HA-PEB) towards concentration of nickel and cadmium has been studied by square wave voltammetry technique (SWV). The developed mechanism is based on the electrochemical reduction of metal to CME modified with HA-PEB for different metal concentrations. The electrochemical study was performed in H2SO4 (0.5 mol/L) at room temperature in the potential range between −0.15 and −0.5 V towards saturated calomel electrode (SCE). The obtained results show that the CME modified with HA-PEB composites responds sensitively to variation of Ni2+ and Cd2+ concentrations, whatever the nature of humic acid. The measurements performed using CME modified with Yakouren humic acid (YHA)-PEB and Tamanrasset humic acid (THA)-PEB gave better sensitivity and good linearity of current versus metal concentration. The application of the sensor to detect heavy metals in water of the Sebaou River (Kabylia, Algeria) revealed that the CME modified with PEB does not detect different metals, while the sensor based on CME-HA-PEB has the ability to detect the presence of more metals in river water. Finally, it can be concluded that HA extracted from Algerian soils play an important role in the effectiveness of the sensor based on cavity microelectrode.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>France</li></country><region><li>Région Bretagne</li></region><settlement><li>Rennes</li></settlement><orgName><li>Université de Rennes 1</li><li>Université européenne de Bretagne</li></orgName></list><tree><country name="France"><region name="Région Bretagne"><name sortKey="Terbouche, A" sort="Terbouche, A" uniqKey="Terbouche A" first="A." last="Terbouche">A. Terbouche</name></region><name sortKey="Hauchard, Didier" sort="Hauchard, Didier" uniqKey="Hauchard D" first="Didier" last="Hauchard">Didier Hauchard</name></country><country name="Algérie"><noRegion><name sortKey="Ait Ramdane Terbouche, C" sort="Ait Ramdane Terbouche, C" uniqKey="Ait Ramdane Terbouche C" first="C." last="Ait-Ramdane-Terbouche">C. Ait-Ramdane-Terbouche</name></noRegion><name sortKey="Benali Baitich, O" sort="Benali Baitich, O" uniqKey="Benali Baitich O" first="O." last="Benali-Baitich">O. Benali-Baitich</name><name sortKey="Djebbar, Safia" sort="Djebbar, Safia" uniqKey="Djebbar S" first="Safia" last="Djebbar">Safia Djebbar</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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