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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F13%3A39896938%21RIV14-MSM-25310___
rdf:type
skos:Concept n11:Vysledek
dcterms:description
The voltammetric behavior and determination of picloram, a member of a pyridine herbicide family, was for the first time investigated on a boron doped diamond film electrode using cyclic and differential pulse voltammetry. The influence of supporting electrolyte and scan rate on the current response of picloram was examined to select the optimum experimental conditions. It was found that picloram provided one well-shaped oxidation peak at very positive potential (+1.5 V vs. Ag/AgCl electrode) in strong acidic medium. At optimized differential pulse voltammetric parameters, the current response of picloram was proportionally linear in the concentration range from 0.5 to 48.07 micromol L-1 and the low limit of detection of 70 nmol L-1 as well as good repeatability (relative standard deviation of 2.6% at 10 micromol L-1 for n = 11) were obtained on unmodified boron-doped diamond film electrode. The proposed method was successfully applied in analysis of environmental (tap and natural water) and biological (human urine) samples spiked with picloram with good accuracy (relative standard deviations less than 5% for all samples, n = 5). By this way, the boron-doped diamond could introduce a green (environmentally acceptable) alternative to mercury electrodes for the monitoring of herbicides. The voltammetric behavior and determination of picloram, a member of a pyridine herbicide family, was for the first time investigated on a boron doped diamond film electrode using cyclic and differential pulse voltammetry. The influence of supporting electrolyte and scan rate on the current response of picloram was examined to select the optimum experimental conditions. It was found that picloram provided one well-shaped oxidation peak at very positive potential (+1.5 V vs. Ag/AgCl electrode) in strong acidic medium. At optimized differential pulse voltammetric parameters, the current response of picloram was proportionally linear in the concentration range from 0.5 to 48.07 micromol L-1 and the low limit of detection of 70 nmol L-1 as well as good repeatability (relative standard deviation of 2.6% at 10 micromol L-1 for n = 11) were obtained on unmodified boron-doped diamond film electrode. The proposed method was successfully applied in analysis of environmental (tap and natural water) and biological (human urine) samples spiked with picloram with good accuracy (relative standard deviations less than 5% for all samples, n = 5). By this way, the boron-doped diamond could introduce a green (environmentally acceptable) alternative to mercury electrodes for the monitoring of herbicides.
dcterms:title
Voltammetric method for sensitive determination of herbicide picloram in environmental and biological samples using boron-doped diamond film electrode Voltammetric method for sensitive determination of herbicide picloram in environmental and biological samples using boron-doped diamond film electrode
skos:prefLabel
Voltammetric method for sensitive determination of herbicide picloram in environmental and biological samples using boron-doped diamond film electrode Voltammetric method for sensitive determination of herbicide picloram in environmental and biological samples using boron-doped diamond film electrode
skos:notation
RIV/00216275:25310/13:39896938!RIV14-MSM-25310___
n11:predkladatel
n12:orjk%3A25310
n5:aktivita
n19:P
n5:aktivity
P(EE2.3.30.0021)
n5:cisloPeriodika
30 November 2013
n5:dodaniDat
n13:2014
n5:domaciTvurceVysledku
n10:8356718 n10:3455408
n5:druhVysledku
n14:J
n5:duvernostUdaju
n9:S
n5:entitaPredkladatele
n16:predkladatel
n5:idSjednocenehoVysledku
115074
n5:idVysledku
RIV/00216275:25310/13:39896938
n5:jazykVysledku
n6:eng
n5:klicovaSlova
Human urine; Environmental sample; Differential pulse voltammetry; Boron-doped diamond film electrode; Picloram
n5:klicoveSlovo
n7:Environmental%20sample n7:Picloram n7:Boron-doped%20diamond%20film%20electrode n7:Differential%20pulse%20voltammetry n7:Human%20urine
n5:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n5:kontrolniKodProRIV
[0FE97939BCE2]
n5:nazevZdroje
Electrochimica Acta
n5:obor
n15:CG
n5:pocetDomacichTvurcuVysledku
2
n5:pocetTvurcuVysledku
5
n5:projekt
n17:EE2.3.30.0021
n5:rokUplatneniVysledku
n13:2013
n5:svazekPeriodika
111
n5:tvurceVysledku
Chýlková, Jaromíra Jana, Svítková Jozef, Sochr Lubomír, Švorc Bandžuchová, Lenka
n5:wos
000329531100034
s:issn
0013-4686
s:numberOfPages
8
n8:doi
10.1016/j.electacta.2013.08.071
n20:organizacniJednotka
25310