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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F11%3A10104957%21RIV12-MSM-11310___
rdf:type
n4:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1135/cccc2011011
dcterms:description
The possibility of determination of chloramphenicol by differential pulse voltammetry at four different carbon paste electrodes, in the full pH range of Britton-Robinson buffer (2 - 12) was investigated. Electrodes were prepared by mixing spectroscopic graphite powder or glassy carbon microbeads with mineral oil (Nujol) or tricresyl phosphate. Under optimal conditions (Britton-Robinson buffer pH 12, the electrode prepared from glassy carbon microbeads and tricresyl phosphate), linear calibration graph was obtained only in 10(-5) M chloramphenicol concentration range. Determination of lower concentrations of chloramphenicol was complicated by irreproducible peak of oxygen from the carbon paste, which overlapped with peak of chloramphenicol. Addition of sodium sulphite removed the oxygen peak without influence on the peak of chloramphenicol. Under optimal conditions (electrode paste made from glassy carbon microbeads, Britton-Robinson buffer pH 10 and 0.5 M sodium sulphite), straight calibration line was obtained in the 10(-6) and 10(-5) M chloramphenicol concentration range. Limit of determination was 5 x 10(-7) M. The possibility of determination of chloramphenicol by differential pulse voltammetry at four different carbon paste electrodes, in the full pH range of Britton-Robinson buffer (2 - 12) was investigated. Electrodes were prepared by mixing spectroscopic graphite powder or glassy carbon microbeads with mineral oil (Nujol) or tricresyl phosphate. Under optimal conditions (Britton-Robinson buffer pH 12, the electrode prepared from glassy carbon microbeads and tricresyl phosphate), linear calibration graph was obtained only in 10(-5) M chloramphenicol concentration range. Determination of lower concentrations of chloramphenicol was complicated by irreproducible peak of oxygen from the carbon paste, which overlapped with peak of chloramphenicol. Addition of sodium sulphite removed the oxygen peak without influence on the peak of chloramphenicol. Under optimal conditions (electrode paste made from glassy carbon microbeads, Britton-Robinson buffer pH 10 and 0.5 M sodium sulphite), straight calibration line was obtained in the 10(-6) and 10(-5) M chloramphenicol concentration range. Limit of determination was 5 x 10(-7) M.
dcterms:title
Determination of chloramphenicol by differential pulse voltammetry at carbon paste electrodes the use of sodium sulphite for removal of oxygen from electrode surface Determination of chloramphenicol by differential pulse voltammetry at carbon paste electrodes the use of sodium sulphite for removal of oxygen from electrode surface
skos:prefLabel
Determination of chloramphenicol by differential pulse voltammetry at carbon paste electrodes the use of sodium sulphite for removal of oxygen from electrode surface Determination of chloramphenicol by differential pulse voltammetry at carbon paste electrodes the use of sodium sulphite for removal of oxygen from electrode surface
skos:notation
RIV/00216208:11310/11:10104957!RIV12-MSM-11310___
n4:predkladatel
n14:orjk%3A11310
n6:aktivita
n9:Z n9:S n9:P
n6:aktivity
P(LC06035), P(ME10004), S, Z(MSM0021620857)
n6:cisloPeriodika
5
n6:dodaniDat
n7:2012
n6:domaciTvurceVysledku
n10:4454472 n10:6618987 n10:5768268
n6:druhVysledku
n15:J
n6:duvernostUdaju
n11:S
n6:entitaPredkladatele
n19:predkladatel
n6:idSjednocenehoVysledku
193813
n6:idVysledku
RIV/00216208:11310/11:10104957
n6:jazykVysledku
n20:eng
n6:klicovaSlova
Differential pulse voltammetry; Sodium sulphite; Oxygen removal; Oxygen peak; Carbon paste electrodes; Chloramphenicol
n6:klicoveSlovo
n12:Chloramphenicol n12:Carbon%20paste%20electrodes n12:Oxygen%20peak n12:Oxygen%20removal n12:Sodium%20sulphite n12:Differential%20pulse%20voltammetry
n6:kodStatuVydavatele
CZ - Česká republika
n6:kontrolniKodProRIV
[67E43D7B9493]
n6:nazevZdroje
Collection of Czechoslovak Chemical Communications
n6:obor
n22:CG
n6:pocetDomacichTvurcuVysledku
3
n6:pocetTvurcuVysledku
4
n6:projekt
n8:LC06035 n8:ME10004
n6:rokUplatneniVysledku
n7:2011
n6:svazekPeriodika
76
n6:tvurceVysledku
Pastor, Ferenc T. Zima, Jiří Dejmková, Hana Barek, Jiří
n6:wos
000290280100003
n6:zamer
n18:MSM0021620857
s:issn
0010-0765
s:numberOfPages
15
n21:doi
10.1135/cccc2011011
n5:organizacniJednotka
11310