About: Electrochemical behaviour of Norflurazon at mercury electrodes, and its analytical applications

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About: Electrochemical behaviour of Norflurazon at mercury electrodes, and its analytical applications Goto Sponge NotDistinct Permalink

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	Norflurazon (systemic herbicide) is reducible at mercury electrodes to the different extent depending on media acidity, area of mercury cathode and its contact time with an electrode surface. The electrode reaction, investigated using direct current and pulse voltammetry, controlled-potential coulometry, and HPLC-MS, is a combination of the electro-reduction and a kinetic process. Four-electron (by voltammetry) or six- electron (by coulometry) irreversible reduction of a norflurazon protonized form was observed in strongly acid media. Simple compounds (HCl, NH3) are released and five- membered pyrrole cycle is formed at electroconversion in these types of media. Only two-electron reduction proceeds in weakly acid solutions and no signal is observed in neutral pH values. A new diffusion wave strongly affected by kinetics is formed in alkaline media. Norflurazon was determined in 0.01 M HCl using differential pulse voltammetry and adsorptive stripping voltammetry with limits of detection 43 nmol.L-1 (13 Norflurazon (systemic herbicide) is reducible at mercury electrodes to the different extent depending on media acidity, area of mercury cathode and its contact time with an electrode surface. The electrode reaction, investigated using direct current and pulse voltammetry, controlled-potential coulometry, and HPLC-MS, is a combination of the electro-reduction and a kinetic process. Four-electron (by voltammetry) or six- electron (by coulometry) irreversible reduction of a norflurazon protonized form was observed in strongly acid media. Simple compounds (HCl, NH3) are released and five- membered pyrrole cycle is formed at electroconversion in these types of media. Only two-electron reduction proceeds in weakly acid solutions and no signal is observed in neutral pH values. A new diffusion wave strongly affected by kinetics is formed in alkaline media. Norflurazon was determined in 0.01 M HCl using differential pulse voltammetry and adsorptive stripping voltammetry with limits of detection 43 nmol.L-1 (13 (en)
Title	Electrochemical behaviour of Norflurazon at mercury electrodes, and its analytical applications Electrochemical behaviour of Norflurazon at mercury electrodes, and its analytical applications (en)
skos:prefLabel	Electrochemical behaviour of Norflurazon at mercury electrodes, and its analytical applications Electrochemical behaviour of Norflurazon at mercury electrodes, and its analytical applications (en)
skos:notation	RIV/61989592:15310/07:00005777!RIV10-MSM-15310___
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(MSM6198959216)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Skopalová, Jana Lemr, Karel Kotouček, Milan
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	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	419695
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/07:00005777
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	herbicide; norflurazon; mercury electrodes; coulometry; voltammetry (en)
http://linked.open.../riv/klicoveSlovo	coulometry norflurazon voltammetry herbicide mercury electrodes
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[3880CF0F0ACC]
http://linked.open...i/riv/nazevZdroje	Acta Universitatis Palackianae Olomucensis, Facultas Rerum Naturalium, Chemica
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	47
http://linked.open...iv/tvurceVysledku	Lemr, Karel Skopalová, Jana Kotouček, Milan Zimpl, Milan
http://linked.open...n/vavai/riv/zamer	Modulation of signalling and regulatory pathways in normal and cancer cells
issn	0232-0061
number of pages	11 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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