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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F11%3A10107062%21RIV12-TA0-11310___
rdf:type
n14:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1135/cccc2011173
dcterms:description
Electrochemical behavior of genotoxic nitro derivatives of quinoline, namely 5-nitroquinoline (5-NQ), 6-nitroquinoline (6-NQ) and 8-nitroquinoline (8-NQ), was investigated by DC tast polarography (DCTP) and differential pulse polarography (DPP), both at a classical dropping mercury electrode (DME), and by differential pulse voltammetry (DPV) and adsorptive stripping differential pulse voltammetry (AdSDPV), both at a miniaturized hanging mercury drop minielectrode (HMDmE), in buffered aqueous (for 5-NQ) or aqueous-methanolic (for 6-NQ and 8-NQ) solutions. Optimum conditions were found for the determination of 5-NQ, 6-NQ and 8-NQ by DCTP at DME (with limits of quantification, LQ on level 9 x 10-7, 3 x 10-7 and 2 x 10-6 mol l-1, respectively), by DPP at DME (LQ on level 1 x 10-8, 9 x 10-8 and 1 x 10-7 mol l-1, respectively), by DPV at HMDmE (LQ on level 2 x 10-8, 1 x 10-7 and 1 x 10-7 mol l-1, respectively), and by AdSDPV at HMDmE (LQ on level 1 x 10-8 mol l-1 for 8-NQ; an attempt at increasing the sensitivity using AdSDPV at HMDmE was not successful for 5-NQ and 6-NQ). Practical applicability of the developed methods was verified on the direct determination of the studied compounds in model samples of drinking and river water in submicromolar concentrations and on the determination in model samples of drinking and river water using preliminary separation and preconcentration by solid phase extraction (SPE) in nanomolar concentrations. Electrochemical behavior of genotoxic nitro derivatives of quinoline, namely 5-nitroquinoline (5-NQ), 6-nitroquinoline (6-NQ) and 8-nitroquinoline (8-NQ), was investigated by DC tast polarography (DCTP) and differential pulse polarography (DPP), both at a classical dropping mercury electrode (DME), and by differential pulse voltammetry (DPV) and adsorptive stripping differential pulse voltammetry (AdSDPV), both at a miniaturized hanging mercury drop minielectrode (HMDmE), in buffered aqueous (for 5-NQ) or aqueous-methanolic (for 6-NQ and 8-NQ) solutions. Optimum conditions were found for the determination of 5-NQ, 6-NQ and 8-NQ by DCTP at DME (with limits of quantification, LQ on level 9 x 10-7, 3 x 10-7 and 2 x 10-6 mol l-1, respectively), by DPP at DME (LQ on level 1 x 10-8, 9 x 10-8 and 1 x 10-7 mol l-1, respectively), by DPV at HMDmE (LQ on level 2 x 10-8, 1 x 10-7 and 1 x 10-7 mol l-1, respectively), and by AdSDPV at HMDmE (LQ on level 1 x 10-8 mol l-1 for 8-NQ; an attempt at increasing the sensitivity using AdSDPV at HMDmE was not successful for 5-NQ and 6-NQ). Practical applicability of the developed methods was verified on the direct determination of the studied compounds in model samples of drinking and river water in submicromolar concentrations and on the determination in model samples of drinking and river water using preliminary separation and preconcentration by solid phase extraction (SPE) in nanomolar concentrations.
dcterms:title
Polarographic and voltammetric determination of genotoxic nitro derivatives of quinoline using mercury electrodes Polarographic and voltammetric determination of genotoxic nitro derivatives of quinoline using mercury electrodes
skos:prefLabel
Polarographic and voltammetric determination of genotoxic nitro derivatives of quinoline using mercury electrodes Polarographic and voltammetric determination of genotoxic nitro derivatives of quinoline using mercury electrodes
skos:notation
RIV/00216208:11310/11:10107062!RIV12-TA0-11310___
n14:predkladatel
n19:orjk%3A11310
n6:aktivita
n9:Z n9:S n9:P
n6:aktivity
P(LC06035), P(ME10004), P(TA01020565), S, Z(MSM0021620857)
n6:cisloPeriodika
12
n6:dodaniDat
n13:2012
n6:domaciTvurceVysledku
n8:4454472 n8:1623532 n8:8805865 n8:6618987 n8:6290957 n8:2674076
n6:druhVysledku
n12:J
n6:duvernostUdaju
n10:S
n6:entitaPredkladatele
n15:predkladatel
n6:idSjednocenehoVysledku
221067
n6:idVysledku
RIV/00216208:11310/11:10107062
n6:jazykVysledku
n20:eng
n6:klicovaSlova
Solid phase extraction; Spiked water samples; 8-Nitroquinoline; 6-Nitroquinoline; 5-Nitroquinoline; Mercury electrodes; Voltammetry; Polarography; Electrochemistry; Analytical methods
n6:klicoveSlovo
n7:Electrochemistry n7:Polarography n7:Analytical%20methods n7:Spiked%20water%20samples n7:5-Nitroquinoline n7:6-Nitroquinoline n7:8-Nitroquinoline n7:Solid%20phase%20extraction n7:Mercury%20electrodes n7:Voltammetry
n6:kodStatuVydavatele
CZ - Česká republika
n6:kontrolniKodProRIV
[4975BB3BC206]
n6:nazevZdroje
Collection of Czechoslovak Chemical Communications
n6:obor
n11:CG
n6:pocetDomacichTvurcuVysledku
6
n6:pocetTvurcuVysledku
7
n6:projekt
n16:ME10004 n16:LC06035 n16:TA01020565
n6:rokUplatneniVysledku
n13:2011
n6:svazekPeriodika
76
n6:tvurceVysledku
Wang, Joseph Daňhel, Aleš Barek, Jiří Jiránek, Ivan Pecková, Karolina Vyskočil, Vlastimil Zima, Jiří
n6:wos
000299816100037
n6:zamer
n22:MSM0021620857
s:issn
0010-0765
s:numberOfPages
14
n18:doi
10.1135/cccc2011173
n21:organizacniJednotka
11310