Photoelectrochemical determination of inorganic mercury in aqueous solutions.
Identifieur interne : 001820 ( Main/Exploration ); précédent : 001819; suivant : 001821Photoelectrochemical determination of inorganic mercury in aqueous solutions.
Auteurs : RBID : pubmed:20113720English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Mercury, Water Pollutants, Chemical.
- chemical , chemistry : Fluorescent Dyes, Indium, Tin Compounds.
- methods : Environmental Monitoring.
- Electrochemistry, Electrodes, Microscopy, Electron, Scanning, Photochemistry, Water.
Abstract
An analytical method using an optical probe in a photoelectrochemical cell for the sensitive and selective determination of aqueous Hg(2+) is presented. A previously synthesized Hg(2+) selective chemosensor, proven to be Hg(2+) sensitive up to 2 microg L(-1), has been immobilized onto indium tin oxide (ITO) electrodes in a composite form with polyaniline. The coated ITO electrode was placed in a photoelectrochemical cell under closed circuit conditions in which the optical recognition of the chemosensor was converted to a measurable signal. A composite of the fluorescent chemosensor, Rhodamine 6G derivative (RS), and polyaniline (PANI) was immobilized on ITO glass plates and subjected to photovoltage measurements in the absence and presence of Hg(2+). The optical responses of the coated electrode were used to determine the sensitivity and selectivity of the immobilized sensor to Hg(2+) in the presence of background ions. The optical response of the PANI-dye coated electrode increased linearly with increasing Hg(2+) concentration in the range 10-150 microg L(-1), with a detection limit of 6 microg L(-1).
DOI: 10.1016/j.aca.2009.11.062
PubMed: 20113720
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Photoelectrochemical determination of inorganic mercury in aqueous solutions.</title><author><name sortKey="Chamier, Jessica" uniqKey="Chamier J">Jessica Chamier</name><affiliation wicri:level="1"><nlm:affiliation>Department of Chemistry and Polymer Science, University of Stellenbosch, Matieland X1, Stellenbosch 7602, South Africa.</nlm:affiliation><country xml:lang="fr">Afrique du Sud</country><wicri:regionArea>Department of Chemistry and Polymer Science, University of Stellenbosch, Matieland X1, Stellenbosch 7602</wicri:regionArea></affiliation></author><author><name sortKey="Leaner, Joy" uniqKey="Leaner J">Joy Leaner</name></author><author><name sortKey="Crouch, Andrew M" uniqKey="Crouch A">Andrew M Crouch</name></author></titleStmt><publicationStmt><date when="2010">2010</date><idno type="doi">10.1016/j.aca.2009.11.062</idno><idno type="RBID">pubmed:20113720</idno><idno type="pmid">20113720</idno><idno type="wicri:Area/Main/Corpus">001B08</idno><idno type="wicri:Area/Main/Curation">001B08</idno><idno type="wicri:Area/Main/Exploration">001820</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Electrochemistry</term><term>Electrodes</term><term>Environmental Monitoring (methods)</term><term>Fluorescent Dyes (chemistry)</term><term>Indium (chemistry)</term><term>Mercury (analysis)</term><term>Microscopy, Electron, Scanning</term><term>Photochemistry</term><term>Tin Compounds (chemistry)</term><term>Water</term><term>Water Pollutants, Chemical (analysis)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Mercury</term><term>Water Pollutants, Chemical</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Fluorescent Dyes</term><term>Indium</term><term>Tin Compounds</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Environmental Monitoring</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Electrochemistry</term><term>Electrodes</term><term>Microscopy, Electron, Scanning</term><term>Photochemistry</term><term>Water</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">An analytical method using an optical probe in a photoelectrochemical cell for the sensitive and selective determination of aqueous Hg(2+) is presented. A previously synthesized Hg(2+) selective chemosensor, proven to be Hg(2+) sensitive up to 2 microg L(-1), has been immobilized onto indium tin oxide (ITO) electrodes in a composite form with polyaniline. The coated ITO electrode was placed in a photoelectrochemical cell under closed circuit conditions in which the optical recognition of the chemosensor was converted to a measurable signal. A composite of the fluorescent chemosensor, Rhodamine 6G derivative (RS), and polyaniline (PANI) was immobilized on ITO glass plates and subjected to photovoltage measurements in the absence and presence of Hg(2+). The optical responses of the coated electrode were used to determine the sensitivity and selectivity of the immobilized sensor to Hg(2+) in the presence of background ions. The optical response of the PANI-dye coated electrode increased linearly with increasing Hg(2+) concentration in the range 10-150 microg L(-1), with a detection limit of 6 microg L(-1).</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">20113720</PMID><DateCreated><Year>2010</Year><Month>02</Month><Day>01</Day></DateCreated><DateCompleted><Year>2010</Year><Month>03</Month><Day>31</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-4324</ISSN><JournalIssue CitedMedium="Internet"><Volume>661</Volume><Issue>1</Issue><PubDate><Year>2010</Year><Month>Feb</Month><Day>19</Day></PubDate></JournalIssue><Title>Analytica chimica acta</Title><ISOAbbreviation>Anal. Chim. Acta</ISOAbbreviation></Journal><ArticleTitle>Photoelectrochemical determination of inorganic mercury in aqueous solutions.</ArticleTitle><Pagination><MedlinePgn>91-6</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.aca.2009.11.062</ELocationID><Abstract><AbstractText>An analytical method using an optical probe in a photoelectrochemical cell for the sensitive and selective determination of aqueous Hg(2+) is presented. A previously synthesized Hg(2+) selective chemosensor, proven to be Hg(2+) sensitive up to 2 microg L(-1), has been immobilized onto indium tin oxide (ITO) electrodes in a composite form with polyaniline. The coated ITO electrode was placed in a photoelectrochemical cell under closed circuit conditions in which the optical recognition of the chemosensor was converted to a measurable signal. A composite of the fluorescent chemosensor, Rhodamine 6G derivative (RS), and polyaniline (PANI) was immobilized on ITO glass plates and subjected to photovoltage measurements in the absence and presence of Hg(2+). The optical responses of the coated electrode were used to determine the sensitivity and selectivity of the immobilized sensor to Hg(2+) in the presence of background ions. The optical response of the PANI-dye coated electrode increased linearly with increasing Hg(2+) concentration in the range 10-150 microg L(-1), with a detection limit of 6 microg L(-1).</AbstractText><CopyrightInformation>Copyright 2009 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Chamier</LastName><ForeName>Jessica</ForeName><Initials>J</Initials><Affiliation>Department of Chemistry and Polymer Science, University of Stellenbosch, Matieland X1, Stellenbosch 7602, South Africa.</Affiliation></Author><Author ValidYN="Y"><LastName>Leaner</LastName><ForeName>Joy</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Crouch</LastName><ForeName>Andrew M</ForeName><Initials>AM</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2009</Year><Month>12</Month><Day>03</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Anal Chim Acta</MedlineTA><NlmUniqueID>0370534</NlmUniqueID><ISSNLinking>0003-2670</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Fluorescent Dyes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Tin Compounds</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Water Pollutants, Chemical</NameOfSubstance></Chemical><Chemical><RegistryNumber>045A6V3VFX</RegistryNumber><NameOfSubstance>Indium</NameOfSubstance></Chemical><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance>Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>18282-10-5</RegistryNumber><NameOfSubstance>stannic oxide</NameOfSubstance></Chemical><Chemical><RegistryNumber>FXS1BY2PGL</RegistryNumber><NameOfSubstance>Mercury</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N">Electrochemistry</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Electrodes</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Environmental Monitoring</DescriptorName><QualifierName MajorTopicYN="N">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Fluorescent Dyes</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Indium</DescriptorName><QualifierName MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Mercury</DescriptorName><QualifierName MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Microscopy, Electron, Scanning</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Photochemistry</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Tin Compounds</DescriptorName><QualifierName MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Water</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Water Pollutants, Chemical</DescriptorName><QualifierName MajorTopicYN="Y">analysis</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2009</Year><Month>8</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2009</Year><Month>11</Month><Day>20</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2009</Year><Month>11</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="aheadofprint"><Year>2009</Year><Month>12</Month><Day>3</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>2</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>2</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>4</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">S0003-2670(09)01597-9</ArticleId><ArticleId IdType="doi">10.1016/j.aca.2009.11.062</ArticleId><ArticleId IdType="pubmed">20113720</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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