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Electrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plants

dc.contributor.authorKryštofová, Olgacs
dc.contributor.authorTrnková, Libušecs
dc.contributor.authorAdam, Vojtěchcs
dc.contributor.authorZehnálek, Josefcs
dc.contributor.authorHubálek, Jaromírcs
dc.contributor.authorBabula, Petrcs
dc.contributor.authorKizek, Renécs
dc.date.accessioned2019-04-03T10:52:23Z
dc.date.available2019-04-03T10:52:23Z
dc.date.issued2010-06-01cs
dc.identifier.citationSENSORS. 2010, vol. 10, issue 6, p. 5308-5328.en
dc.identifier.issn1424-8220cs
dc.identifier.other50226cs
dc.identifier.urihttp://hdl.handle.net/11012/70095
dc.description.abstractRoutine determination of trace metals in complex media is still a difficult task for many analytical instruments. The aim of this work was to compare three electro-chemical instruments [a standard potentiostat (Autolab), a commercially available miniaturized potentiostat (PalmSens) and a homemade micropotentiostat] for easy-to-use and sensitive determination of cadmium(II) and lead(II) ions. The lowest detection limits (hundreds of pM) for both metals was achieved by using of the standard potentiostat, followed by the miniaturized potentiostat (tens of nM) and the homemade instrument (hundreds of nM). Nevertheless, all potentiostats were sensitive enough to evaluate contamination of the environment, because the environmental limits for both metals are higher than detection limits of the instruments. Further, we tested all used potentiostats and working electrodes on analysis of environmental samples (rainwater, flour and plant extract) with artificially added cadmium(II) and lead(II). Based on the similar results obtained for all potentiostats we choose a homemade instrument with a carbon tip working electrode for our subsequent environmental experiments, in which we analyzed maize and sunflower seedlings and rainwater obtained from various sites in the Czech Republic.en
dc.description.abstractRoutine determination of trace metals in complex media is still a difficult task for many analytical instruments. The aim of this work was to compare three electro-chemical instruments [a standard potentiostat (Autolab), a commercially available miniaturized potentiostat (PalmSens) and a homemade micropotentiostat] for easy-to-use and sensitive determination of cadmium(II) and lead(II) ions. The lowest detection limits (hundreds of pM) for both metals was achieved by using of the standard potentiostat, followed by the miniaturized potentiostat (tens of nM) and the homemade instrument (hundreds of nM). Nevertheless, all potentiostats were sensitive enough to evaluate contamination of the environment, because the environmental limits for both metals are higher than detection limits of the instruments. Further, we tested all used potentiostats and working electrodes on analysis of environmental samples (rainwater, flour and plant extract) with artificially added cadmium(II) and lead(II). Based on the similar results obtained for all potentiostats we choose a homemade instrument with a carbon tip working electrode for our subsequent environmental experiments, in which we analyzed maize and sunflower seedlings and rainwater obtained from various sites in the Czech Republic.cs
dc.formattextcs
dc.format.extent5308-5328cs
dc.format.mimetypeapplication/pdfcs
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofSENSORScs
dc.relation.urihttp://www.mdpi.com/1424-8220/10/6/5308cs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectheavy metalsen
dc.subjectleaden
dc.subjectcadmiumen
dc.subjectminiaturizationen
dc.subjectscreen printed electrodeen
dc.subjectamperometryen
dc.subjectvoltammetryen
dc.subjectplanten
dc.subjectmaizeen
dc.subjectsunfloweren
dc.subjectwateren
dc.subjectheavy metals
dc.subjectlead
dc.subjectcadmium
dc.subjectminiaturization
dc.subjectscreen printed electrode
dc.subjectamperometry
dc.subjectvoltammetry
dc.subjectplant
dc.subjectmaize
dc.subjectsunflower
dc.subjectwater
dc.titleElectrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plantsen
dc.title.alternativeElectrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plantscs
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav mikroelektronikycs
sync.item.dbidVAV-50226en
sync.item.dbtypeVAVen
sync.item.insts2020.04.01 10:59:53en
sync.item.modts2020.04.01 05:52:37en
dc.coverage.issue6cs
dc.coverage.volume10cs
dc.identifier.doi10.3390/s100605308cs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1424-8220/cs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen


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