Silver(I) Ions Ultrasensitive Detection at Carbon Electrodes-Analysis of Waters, Tobacco Cells and Fish Tissues

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dc.contributor.authorKřížková, Soňacs
dc.contributor.authorKryštofová, Olgacs
dc.contributor.authorTrnková, Libušecs
dc.contributor.authorHubálek, Jaromírcs
dc.contributor.authorAdam, Vojtěchcs
dc.contributor.authorBeklová, Miroslavacs
dc.contributor.authorKizek, Renécs
dc.coverage.issue9cs
dc.coverage.volume9cs
dc.date.accessioned2017-10-12T10:46:07Z
dc.date.available2017-10-12T10:46:07Z
dc.date.issued2009-09-01cs
dc.description.abstractWe used carbon paste electrodes and a standard potentiostat to detect silver ions. The detection limit (3 Signal/Noise ratio) was estimated as 0.5 mu M. A standard electrochemical instrument microanalysis of silver(I) ions was suggested. As a working electrode a carbon tip (1 mL) or carbon pencil was used. Limits of detection estimated by dilution of a standard were 1 (carbon tip) or 10 nM (carbon pencil). Further we employed flow injection analysis coupled with carbon tip to detect silver(I) ions released in variousbeverages and mineral waters. During first, second and third week the amount of silver(I) ions releasing into water samples was under the detection limit of the technique used for their quantification. At the end of a thirteen weeks long experiment the content of silver(I) ions was several times higher compared to the beginning of release detected in the third week and was on the order of tens of nanomoles. In subsequent experiments the influence of silver(I) ions (0, 5 and 10 mu M) on a plant model system (tobacco BY-2 cells) during a four-day exposition was investigated. Silver(I) ions were highly toxic to the cells, which was revealed by a double staining viability assay. Moreover we investigated the effect of silver(I) ions (0, 0.3, 0.6, 1.2 and 2.5 mu M) on guppies (Poecilia reticulata). Content of Ag(I) increased with increasing time of the treatment and applied concentrations in fish tissues. It can be concluded that a carbon tip or carbon pencil coupled with a miniaturized potentiostat can be used for detection of silver(I) ions in environmental samples and thus represents a small, portable, low cost and easy-to-use instrument for such purposes.en
dc.formattextcs
dc.format.extent6934-6950cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationSENSORS. 2009, vol. 9, issue 9, p. 6934-6950.en
dc.identifier.doi10.3390/s90906934cs
dc.identifier.issn1424-8220cs
dc.identifier.orcid0000-0002-0479-8369cs
dc.identifier.orcid0000-0002-4575-3562cs
dc.identifier.orcid0000-0002-7496-2558cs
dc.identifier.orcid0000-0002-8527-286Xcs
dc.identifier.other47909cs
dc.identifier.researcheridE-9617-2012cs
dc.identifier.researcheridE-1127-2012cs
dc.identifier.researcheridD-7753-2012cs
dc.identifier.researcheridD-7686-2012cs
dc.identifier.scopus18234063900cs
dc.identifier.scopus57207501711cs
dc.identifier.urihttp://hdl.handle.net/11012/70073
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofSENSORScs
dc.relation.urihttp://www.mdpi.com/1424-8220/9/9/6934cs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1424-8220/cs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectsilveren
dc.subjectguppy (Poecilia reticulata)en
dc.subjecttobacco cellsen
dc.subjectecotoxicologyen
dc.subjectvoltammetryen
dc.subjectminiaturized carbon electrodesen
dc.titleSilver(I) Ions Ultrasensitive Detection at Carbon Electrodes-Analysis of Waters, Tobacco Cells and Fish Tissuesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-47909en
sync.item.dbtypeVAVen
sync.item.insts2023.08.01 12:58:28en
sync.item.modts2023.08.01 12:19:55en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav mikroelektronikycs
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