About: Electrochemical reduction of chloridazon at mercury electrodes, and its analytical application

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About: Electrochemical reduction of chloridazon at mercury electrodes, and its analytical application 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	The electrochemical behavior of the herbicide chloridazon, I (pyrazon), at different pH is described. The electrode reaction (one wave in acidic media and another in alkaline media), investigated using direct current and pulse voltammetry, controlled-potential coulometry, and HPLC-MS, is a combination of the electroreduction (two-electron in the first step) and a kinetic process as a result of which simple compounds (HCl, NH3) are released and, moreover, a five-membered pyrrole cycle is formed in strongly acid media. Products of the kinetic reaction are further reducible. The dissociation constant of I, pK(a) = 2.96, was found spectrophotometrically. Fast-scan differential pulse voltammetry (FSDPV) was used for determination of I; the detection limit was 2.7x10(-8) mol L-1 (0.006 mug L-1) at pH 2.3. Chloridazon was determined in spiked drinking and river water. The electrochemical behavior of the herbicide chloridazon, I (pyrazon), at different pH is described. The electrode reaction (one wave in acidic media and another in alkaline media), investigated using direct current and pulse voltammetry, controlled-potential coulometry, and HPLC-MS, is a combination of the electroreduction (two-electron in the first step) and a kinetic process as a result of which simple compounds (HCl, NH3) are released and, moreover, a five-membered pyrrole cycle is formed in strongly acid media. Products of the kinetic reaction are further reducible. The dissociation constant of I, pK(a) = 2.96, was found spectrophotometrically. Fast-scan differential pulse voltammetry (FSDPV) was used for determination of I; the detection limit was 2.7x10(-8) mol L-1 (0.006 mug L-1) at pH 2.3. Chloridazon was determined in spiked drinking and river water. (en)
Title	Electrochemical reduction of chloridazon at mercury electrodes, and its analytical application Electrochemical reduction of chloridazon at mercury electrodes, and its analytical application (en)
skos:prefLabel	Electrochemical reduction of chloridazon at mercury electrodes, and its analytical application Electrochemical reduction of chloridazon at mercury electrodes, and its analytical application (en)
skos:notation	RIV/61989592:15310/01:00001696!RIV/2003/MSM/153103/N
http://linked.open.../vavai/riv/strany	975-982
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	2003
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	679104
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/01:00001696
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	chloridazone; electrochemical reduction; analytical application; (en)
http://linked.open.../riv/klicoveSlovo	analytical application chloridazone electrochemical reduction
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[C65E65032FBA]
http://linked.open...i/riv/nazevZdroje	Fresenius' Journal of Analytical Chemistry
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	3 (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	371
http://linked.open...iv/tvurceVysledku	Lemr, Karel Skopalová, Jana Kotouček, Milan Zimpl, Milan Vesela, Jana
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20153100013
issn	0937-0633
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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