About: Study of Interactions between Cysteine and Cadmium(II) Ions using Automatic Pipetting System off-line Coupled with Electrochemical Analyser Dedicated United Nation Environment Program: Lead and Cadmium Initiatives

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About: Study of Interactions between Cysteine and Cadmium(II) Ions using Automatic Pipetting System off-line Coupled with Electrochemical Analyser Dedicated United Nation Environment Program: Lead and Cadmium Initiatives Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The sulfhydryl group of low molecular thiols including cysteine is reactive and is often found conjugated to other molecules such as nitric oxide and/or metal ions via its sulfhydryl moiety. Therefore, it is not surprising that thiols play key role in many protective mechanisms against adverse effects of metal ions. On the other, good affinity of their -SH moiety can be used as a base for heavy metal ion sensor in environmental analysis. Electrochemical measurements were performed Trace Analyzer and autosampler, using a standard cell with three electrodes and cooled sample holder (4 °C). For automated samples handling prior to their electrochemical and photometrical analysis, an automated pipetting station with computer controlling was used. Ellman reaction for --SH group detection was measured using Chemical Analyser. In this study, we primarily aimed our attention on studying of basic electrochemical behaviour of cadmium(II) ions and low molecular mass thiol cysteine. Measured concentrations of cysteine were 0, 0.5, 1, 2.5, 5, 10, 25, 50, 75, 100, 150, 200, 250, 500, 750 and 1000 uM, and cadmium(II) ions 0, 0.5, 1, 2.5, 5, 10, 25, 50, 75, 100, 150, 200, 250, 500, 750 and 1000 nM. Well developed peaks of cadmium(II) ions at -0.6 V and --SH moiety at --0.2 V and at coloured complex 412 nm were detected. After that we characterized the obtained differential pulse voltammograms, we followed with the studying of their mutual interactions. Each from the above mentioned thiols concentrations were mixed with 0.5, 1, 2.5, 5, 10, 25, 50, 75, 100, 150, 200, 250, 500, 750 or 1000 nM cadmium(II) ions and incubated. Based on the affinity of --SH moiety to metal ion, cadmium-thionein complexes were formed. Samples were taken in the following time intervals: 0, 5 and 15 h and measured using differential pulse voltammetry. The changes in the signals as rapid decreasing of cadmium(II) ion peak and free thiol moiety, and occurring of Cd-S complex peak were described and mathematical The sulfhydryl group of low molecular thiols including cysteine is reactive and is often found conjugated to other molecules such as nitric oxide and/or metal ions via its sulfhydryl moiety. Therefore, it is not surprising that thiols play key role in many protective mechanisms against adverse effects of metal ions. On the other, good affinity of their -SH moiety can be used as a base for heavy metal ion sensor in environmental analysis. Electrochemical measurements were performed Trace Analyzer and autosampler, using a standard cell with three electrodes and cooled sample holder (4 °C). For automated samples handling prior to their electrochemical and photometrical analysis, an automated pipetting station with computer controlling was used. Ellman reaction for --SH group detection was measured using Chemical Analyser. In this study, we primarily aimed our attention on studying of basic electrochemical behaviour of cadmium(II) ions and low molecular mass thiol cysteine. Measured concentrations of cysteine were 0, 0.5, 1, 2.5, 5, 10, 25, 50, 75, 100, 150, 200, 250, 500, 750 and 1000 uM, and cadmium(II) ions 0, 0.5, 1, 2.5, 5, 10, 25, 50, 75, 100, 150, 200, 250, 500, 750 and 1000 nM. Well developed peaks of cadmium(II) ions at -0.6 V and --SH moiety at --0.2 V and at coloured complex 412 nm were detected. After that we characterized the obtained differential pulse voltammograms, we followed with the studying of their mutual interactions. Each from the above mentioned thiols concentrations were mixed with 0.5, 1, 2.5, 5, 10, 25, 50, 75, 100, 150, 200, 250, 500, 750 or 1000 nM cadmium(II) ions and incubated. Based on the affinity of --SH moiety to metal ion, cadmium-thionein complexes were formed. Samples were taken in the following time intervals: 0, 5 and 15 h and measured using differential pulse voltammetry. The changes in the signals as rapid decreasing of cadmium(II) ion peak and free thiol moiety, and occurring of Cd-S complex peak were described and mathematical (en)
Title	Study of Interactions between Cysteine and Cadmium(II) Ions using Automatic Pipetting System off-line Coupled with Electrochemical Analyser Dedicated United Nation Environment Program: Lead and Cadmium Initiatives Study of Interactions between Cysteine and Cadmium(II) Ions using Automatic Pipetting System off-line Coupled with Electrochemical Analyser Dedicated United Nation Environment Program: Lead and Cadmium Initiatives (en)
skos:prefLabel	Study of Interactions between Cysteine and Cadmium(II) Ions using Automatic Pipetting System off-line Coupled with Electrochemical Analyser Dedicated United Nation Environment Program: Lead and Cadmium Initiatives Study of Interactions between Cysteine and Cadmium(II) Ions using Automatic Pipetting System off-line Coupled with Electrochemical Analyser Dedicated United Nation Environment Program: Lead and Cadmium Initiatives (en)
skos:notation	RIV/62156489:43210/12:00184846!RIV13-GA0-43210___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0068), P(GA102/08/1546), Z(MSM0021622412), Z(MSM6215648902)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Cernei, Natalia Vladimirovna Trnková, Libuše Kynický, Jindřich Hynek, David Adam, Vojtěch Hubálek, Jaromír Kizek, René Sochor, Jiří Krejčová, Ludmila
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Agronomická fakulta
http://linked.open...dnocenehoVysledku	172175
http://linked.open...ai/riv/idVysledku	RIV/62156489:43210/12:00184846
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	electrochemical analyser; cystein; cadmium (en)
http://linked.open.../riv/klicoveSlovo	cadmium cystein electrochemical analyser
http://linked.open...odStatuVydavatele	RS - Srbská republika
http://linked.open...ontrolniKodProRIV	[255584D22101]
http://linked.open...i/riv/nazevZdroje	International Journal of Electrochemical Science
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	9 (xsd:int)
http://linked.open...cetTvurcuVysledku	10 (xsd:int)
http://linked.open...vavai/riv/projekt	Central european institute of technology Miniaturized intelligent systems and nanostructured elektrodes for chemical, biological, and pharmaceutical applications (NANIMEL)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	7
http://linked.open...iv/tvurceVysledku	Adam, Vojtěch Hubálek, Jaromír Hynek, David Kizek, René Kynický, Jindřich Krejčová, Ludmila Sochor, Jiří Trnková, Libuše Cernei, Natalia Vrba, Roman
http://linked.open...ain/vavai/riv/wos	302730300005
http://linked.open...n/vavai/riv/zamer	Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL) Forest and Wood: the support of functionally integrated forest management and use of wood as a renewable raw material
issn	1452-3981
number of pages	18 (xsd:int)
http://localhost/t...ganizacniJednotka	43210

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