Ultrasound-assisted ionic liquid-based microextraction combined with least squares support vector machines regression for the simultaneous determination of aluminum, gallium, and indium in water and coal samples.
Identifieur interne : 000955 ( Main/Exploration ); précédent : 000954; suivant : 000956Ultrasound-assisted ionic liquid-based microextraction combined with least squares support vector machines regression for the simultaneous determination of aluminum, gallium, and indium in water and coal samples.
Auteurs : RBID : pubmed:21789531English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Aluminum, Gallium, Indium.
- chemical , chemistry : Water.
- chemical : Coal.
- methods : Liquid Phase Microextraction.
- High-Energy Shock Waves, Least-Squares Analysis, Support Vector Machines.
Abstract
A new simple and rapid ultrasound-assisted ionic liquid-based microextraction method was applied to preconcentrate aluminum(III), gallium(III), and indium(III) ions from water samples as a prior step to their simultaneous spectrophotometric determination using least squares support vector machines regression. In the novel procedure, 1-hexyl-3-methylimidazolium hexafluorophosphate [C(6)MIM][PF(6)] was dispersed into the aqueous sample solution as fine droplets by ultrasonication, and the analytes were extracted into the ionic liquid phase after complexation with 1,2,5,8-tetrahydroxy anthraquinone (quinalizarine). After centrifuging, the fine droplets of extractant phase were settled to the bottom of the conical-bottom glass centrifuge tube. The detection limits for Al(III), Ga(III), and In(III) were 1.70, 2.02, and 2.06 ng mL(-1), respectively. The precision of the method, evaluated as the relative standard deviation obtained by analyzing a series of ten replicates, was below 3.2% for all elements. The method was successfully applied for the determination of Al(III), Ga(III), and In(III) in real samples.
DOI: 10.1007/s10661-011-2237-x
PubMed: 21789531
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Ultrasound-assisted ionic liquid-based microextraction combined with least squares support vector machines regression for the simultaneous determination of aluminum, gallium, and indium in water and coal samples.</title><author><name sortKey="Ghasemi, Jahan B" uniqKey="Ghasemi J">Jahan B Ghasemi</name><affiliation wicri:level="1"><nlm:affiliation>Department of Chemistry, Faculty of Sciences, K. N. Toosi University of Technology, Tehran, Iran. Jahan.ghasemi@gmail.com</nlm:affiliation><country xml:lang="fr">Iran</country><wicri:regionArea>Department of Chemistry, Faculty of Sciences, K. N. Toosi University of Technology, Tehran</wicri:regionArea></affiliation></author><author><name sortKey="Zolfonoun, Ehsan" uniqKey="Zolfonoun E">Ehsan Zolfonoun</name></author></titleStmt><publicationStmt><date when="2012">2012</date><idno type="doi">10.1007/s10661-011-2237-x</idno><idno type="RBID">pubmed:21789531</idno><idno type="pmid">21789531</idno><idno type="wicri:Area/Main/Corpus">001248</idno><idno type="wicri:Area/Main/Curation">001248</idno><idno type="wicri:Area/Main/Exploration">000955</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aluminum (analysis)</term><term>Coal</term><term>Gallium (analysis)</term><term>High-Energy Shock Waves</term><term>Indium (analysis)</term><term>Least-Squares Analysis</term><term>Liquid Phase Microextraction (methods)</term><term>Support Vector Machines</term><term>Water (chemistry)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Aluminum</term><term>Gallium</term><term>Indium</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Water</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Coal</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Liquid Phase Microextraction</term></keywords><keywords scheme="MESH" xml:lang="en"><term>High-Energy Shock Waves</term><term>Least-Squares Analysis</term><term>Support Vector Machines</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A new simple and rapid ultrasound-assisted ionic liquid-based microextraction method was applied to preconcentrate aluminum(III), gallium(III), and indium(III) ions from water samples as a prior step to their simultaneous spectrophotometric determination using least squares support vector machines regression. In the novel procedure, 1-hexyl-3-methylimidazolium hexafluorophosphate [C(6)MIM][PF(6)] was dispersed into the aqueous sample solution as fine droplets by ultrasonication, and the analytes were extracted into the ionic liquid phase after complexation with 1,2,5,8-tetrahydroxy anthraquinone (quinalizarine). After centrifuging, the fine droplets of extractant phase were settled to the bottom of the conical-bottom glass centrifuge tube. The detection limits for Al(III), Ga(III), and In(III) were 1.70, 2.02, and 2.06 ng mL(-1), respectively. The precision of the method, evaluated as the relative standard deviation obtained by analyzing a series of ten replicates, was below 3.2% for all elements. The method was successfully applied for the determination of Al(III), Ga(III), and In(III) in real samples.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">21789531</PMID><DateCreated><Year>2012</Year><Month>05</Month><Day>07</Day></DateCreated><DateCompleted><Year>2012</Year><Month>07</Month><Day>13</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1573-2959</ISSN><JournalIssue CitedMedium="Internet"><Volume>184</Volume><Issue>6</Issue><PubDate><Year>2012</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Environmental monitoring and assessment</Title><ISOAbbreviation>Environ Monit Assess</ISOAbbreviation></Journal><ArticleTitle>Ultrasound-assisted ionic liquid-based microextraction combined with least squares support vector machines regression for the simultaneous determination of aluminum, gallium, and indium in water and coal samples.</ArticleTitle><Pagination><MedlinePgn>3971-81</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s10661-011-2237-x</ELocationID><Abstract><AbstractText>A new simple and rapid ultrasound-assisted ionic liquid-based microextraction method was applied to preconcentrate aluminum(III), gallium(III), and indium(III) ions from water samples as a prior step to their simultaneous spectrophotometric determination using least squares support vector machines regression. In the novel procedure, 1-hexyl-3-methylimidazolium hexafluorophosphate [C(6)MIM][PF(6)] was dispersed into the aqueous sample solution as fine droplets by ultrasonication, and the analytes were extracted into the ionic liquid phase after complexation with 1,2,5,8-tetrahydroxy anthraquinone (quinalizarine). After centrifuging, the fine droplets of extractant phase were settled to the bottom of the conical-bottom glass centrifuge tube. The detection limits for Al(III), Ga(III), and In(III) were 1.70, 2.02, and 2.06 ng mL(-1), respectively. The precision of the method, evaluated as the relative standard deviation obtained by analyzing a series of ten replicates, was below 3.2% for all elements. The method was successfully applied for the determination of Al(III), Ga(III), and In(III) in real samples.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ghasemi</LastName><ForeName>Jahan B</ForeName><Initials>JB</Initials><Affiliation>Department of Chemistry, Faculty of Sciences, K. N. Toosi University of Technology, Tehran, Iran. 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