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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F11%3A00053590%21RIV12-MSM-14310___
rdf:type
n20:Vysledek skos:Concept
dcterms:description
The apparent pK(a) values of 6-benzylaminopurine (BAP) and its 4-chloro-6-benzylaminopurine and 4-methoxy-6-benzylaminopurine derivatives were determined in good agreement with voltammetric approaches and with spectrophotometry. Whereas at acidic pH values two overlapped reduction peaks on the mercury electrode were obtained, at more slightly alkaline solutions one reduction signal was measured not only for BAP but also for its derivatives. Furthermore, high scan rates, low ionic strength concentration and a high percentage of the organic solvent cause the best splitting of signals. For the detailed study of such a phenomenon, elimination voltammetry with linear scan (EVLS) was used concluding that the reasons of the peak splitting seem to be related to two different reduction mechanisms that take place on the electrode mainly controlled by adsorption. The apparent pK(a) values of 6-benzylaminopurine (BAP) and its 4-chloro-6-benzylaminopurine and 4-methoxy-6-benzylaminopurine derivatives were determined in good agreement with voltammetric approaches and with spectrophotometry. Whereas at acidic pH values two overlapped reduction peaks on the mercury electrode were obtained, at more slightly alkaline solutions one reduction signal was measured not only for BAP but also for its derivatives. Furthermore, high scan rates, low ionic strength concentration and a high percentage of the organic solvent cause the best splitting of signals. For the detailed study of such a phenomenon, elimination voltammetry with linear scan (EVLS) was used concluding that the reasons of the peak splitting seem to be related to two different reduction mechanisms that take place on the electrode mainly controlled by adsorption.
dcterms:title
Acid-Base Equilibrium of 6-Benzylaminopurine and Its 4-Chloro and 4-Methoxy Derivatives in Water-Ethanol Solutions Studied by Voltammetry and Spectrophotometry Acid-Base Equilibrium of 6-Benzylaminopurine and Its 4-Chloro and 4-Methoxy Derivatives in Water-Ethanol Solutions Studied by Voltammetry and Spectrophotometry
skos:prefLabel
Acid-Base Equilibrium of 6-Benzylaminopurine and Its 4-Chloro and 4-Methoxy Derivatives in Water-Ethanol Solutions Studied by Voltammetry and Spectrophotometry Acid-Base Equilibrium of 6-Benzylaminopurine and Its 4-Chloro and 4-Methoxy Derivatives in Water-Ethanol Solutions Studied by Voltammetry and Spectrophotometry
skos:notation
RIV/00216224:14310/11:00053590!RIV12-MSM-14310___
n20:predkladatel
n21:orjk%3A14310
n4:aktivita
n11:Z n11:S n11:P
n4:aktivity
P(LC06035), S, Z(MSM0021622412)
n4:cisloPeriodika
9
n4:dodaniDat
n5:2012
n4:domaciTvurceVysledku
n9:3790185 n9:1778307 Serrano, Nuria
n4:druhVysledku
n17:J
n4:duvernostUdaju
n14:S
n4:entitaPredkladatele
n15:predkladatel
n4:idSjednocenehoVysledku
184445
n4:idVysledku
RIV/00216224:14310/11:00053590
n4:jazykVysledku
n6:eng
n4:klicovaSlova
Benzylaminopurines; Water-ethanol solution; Linear sweep voltammetry; Elimination voltammetry with linear scan; Spectrophotometry
n4:klicoveSlovo
n12:Water-ethanol%20solution n12:Elimination%20voltammetry%20with%20linear%20scan n12:Benzylaminopurines n12:Spectrophotometry n12:Linear%20sweep%20voltammetry
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[66C9BC60667C]
n4:nazevZdroje
Electroanalysis
n4:obor
n10:CF
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n16:LC06035
n4:rokUplatneniVysledku
n5:2011
n4:svazekPeriodika
23
n4:tvurceVysledku
Serrano, Nuria Trnková, Libuše Holubová, Sylvie
n4:wos
000295143900031
n4:zamer
n18:MSM0021622412
s:issn
1040-0397
s:numberOfPages
9
n7:doi
10.1002/elan.201100282
n19:organizacniJednotka
14310