About: Electrochemical behavior and voltammetric determination of the herbicide metribuzin at mercury electrodes

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About: Electrochemical behavior and voltammetric determination of the herbicide metribuzin at mercury electrodes Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The electrochemical behavior of the herbicide metribuzin (4 amino-6-teat-butyl-4,5-dihydro-3-methylthio-1,2,4-triazin-5 one) at mercury electrodes was studied in aqueous solutions by direct current (DC) and tast polarography, differential pulse (DPV) andcyclic voltammetry (CV), and controlled-potential coulometry. The electrolysis products were separated and identified by chromatographic techniques combined with mass spectrometric detection. The reduction process in acid media includes two irreversible steps. In the first four-electron step the N-NH2 and the 1,6-azomethine bonds are reduced. The second step leads to the formation of 5-tert-butyl-2,3,4,5 tetrahydroimidazol-4-one at the mercury-pool electrode. The first reduction step combined with adso rptive accumulation of the herbicide molecule at the mercury electrode surface was used for its determination by differential pulse adsorptive stripping voltammetry (DPAdSV). Calibration curves were linear in the range 1-30 mug L-1 with a detection limit The electrochemical behavior of the herbicide metribuzin (4 amino-6-teat-butyl-4,5-dihydro-3-methylthio-1,2,4-triazin-5 one) at mercury electrodes was studied in aqueous solutions by direct current (DC) and tast polarography, differential pulse (DPV) andcyclic voltammetry (CV), and controlled-potential coulometry. The electrolysis products were separated and identified by chromatographic techniques combined with mass spectrometric detection. The reduction process in acid media includes two irreversible steps. In the first four-electron step the N-NH2 and the 1,6-azomethine bonds are reduced. The second step leads to the formation of 5-tert-butyl-2,3,4,5 tetrahydroimidazol-4-one at the mercury-pool electrode. The first reduction step combined with adso rptive accumulation of the herbicide molecule at the mercury electrode surface was used for its determination by differential pulse adsorptive stripping voltammetry (DPAdSV). Calibration curves were linear in the range 1-30 mug L-1 with a detection limit (en)
Title	Electrochemical behavior and voltammetric determination of the herbicide metribuzin at mercury electrodes Electrochemical behavior and voltammetric determination of the herbicide metribuzin at mercury electrodes (en)
skos:prefLabel	Electrochemical behavior and voltammetric determination of the herbicide metribuzin at mercury electrodes Electrochemical behavior and voltammetric determination of the herbicide metribuzin at mercury electrodes (en)
skos:notation	RIV/61989592:15310/01:00001339!RIV/2002/MSM/153102/N
http://linked.open.../vavai/riv/strany	963-969
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 153100013)
http://linked.open...iv/cisloPeriodika	7
http://linked.open...vai/riv/dodaniDat	2002
http://linked.open...aciTvurceVysledku	Barták, Petr Skopalová, Jana Lemr, Karel Čáp, Lubomír 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	679085
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/01:00001339
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	SOLID-PHASE EXTRACTION; METAMITRON; REDUCTION; CHROMATOGRAPHY; METABOLITES; ATRAZINE; SOIL (en)
http://linked.open.../riv/klicoveSlovo	SOIL ATRAZINE METAMITRON SOLID-PHASE EXTRACTION REDUCTION CHROMATOGRAPHY METABOLITES
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[2ADC8530FBE4]
http://linked.open...i/riv/nazevZdroje	Fresenius Journal of Analytical Chemistry
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...UplatneniVysledku	2001
http://linked.open...v/svazekPeriodika	370
http://linked.open...iv/tvurceVysledku	Barták, Petr Lemr, Karel Skopalová, Jana Čáp, Lubomír Kotouček, Milan
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20153100013
issn	0937-0633
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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