About: A novel paste electrode based on a silver solid amalgam and an organic pasting liquid

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The silver solid amalgam fine powder mixed with a proper pasting liquid, firstly introduced in this work, was found to be a new suitable electrode material for sensitive voltammetric determination of electro-chemically reducible organic compounds. The optimal composition of the amalgam (mercury/silver ratio) and the formed paste (i.e., quality and quantity of pasting liquid and its ratio relative to amalgam) was tested by modern voltammetric methods using 4-nitrophenol as a model compound. This new non-toxic electrode material combines the advantages of an easily renewable paste electrode surface solving the problems connected with the passivation of the solid electrodes and of amalgam electrodes providing good mechanical stability, simple handling and preparation, wide potential window in cathodic potential range and sufficient sensitivity. The silver amalgam fine powder prepared in the weight ratio 60/40 (Hg/Ag) mixed with paraffin oil in the weight ratio 20:1 (w/w) was found to be the most convenient for the determination of 4-nitrophenol using differential pulse voltammetry with limit of detection 1 mu mol l(-1) in 0.2 mol l(-1) acetate buffer pH 4.8. The silver solid amalgam fine powder mixed with a proper pasting liquid, firstly introduced in this work, was found to be a new suitable electrode material for sensitive voltammetric determination of electro-chemically reducible organic compounds. The optimal composition of the amalgam (mercury/silver ratio) and the formed paste (i.e., quality and quantity of pasting liquid and its ratio relative to amalgam) was tested by modern voltammetric methods using 4-nitrophenol as a model compound. This new non-toxic electrode material combines the advantages of an easily renewable paste electrode surface solving the problems connected with the passivation of the solid electrodes and of amalgam electrodes providing good mechanical stability, simple handling and preparation, wide potential window in cathodic potential range and sufficient sensitivity. The silver amalgam fine powder prepared in the weight ratio 60/40 (Hg/Ag) mixed with paraffin oil in the weight ratio 20:1 (w/w) was found to be the most convenient for the determination of 4-nitrophenol using differential pulse voltammetry with limit of detection 1 mu mol l(-1) in 0.2 mol l(-1) acetate buffer pH 4.8. (en)
Title	A novel paste electrode based on a silver solid amalgam and an organic pasting liquid A novel paste electrode based on a silver solid amalgam and an organic pasting liquid (en)
skos:prefLabel	A novel paste electrode based on a silver solid amalgam and an organic pasting liquid A novel paste electrode based on a silver solid amalgam and an organic pasting liquid (en)
skos:notation	RIV/61388955:_____/11:00377572!RIV13-AV0-61388955
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(IAA400400806), P(LC06035), P(LC06063), S, Z(AV0Z40400503), Z(MSM0021620857)
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Yosypchuk, Bogdan
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	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	184027
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/11:00377572
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	voltammetry; paste electrode; silver amalgam (en)
http://linked.open.../riv/klicoveSlovo	paste electrode silver amalgam voltammetry
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[E5B5C2499397]
http://linked.open...i/riv/nazevZdroje	Journal of Electroanalytical Chemistry
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Transport of Charged and Uncharged Species across Models of Biological Membranes Centre of Biophysical Chemistry, Bioelectrochemistry and Bioanalysis. New Tools for Genomics, Proteomics and Biomedicine. Flurescence microscopy in biological and medical research
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	656
http://linked.open...iv/tvurceVysledku	Barek, J. Daňhel, A. Vyskočil, V. Yosypchuk, Bogdan Zima, J.
http://linked.open...ain/vavai/riv/wos	000291768300035
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace Nové molekulární systémy pro pokročilé aplikace prospěšné pro zdraví a šetrné k životnímu prostředí
issn	1572-6657
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jelechem.2010.11.010

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