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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F09%3A00328330%21RIV10-MSM-61388955
rdf:type
n16:Vysledek skos:Concept
dcterms:description
A new simple and direct electroanalytical method was developed for the determination of azidothymidine in commercial pharmaceutical preparations. It is based on differential pulse voltammetry at silver solid amalgam electrode with polished surface (p-AgSAE) or surface modified by mercury meniscus (m-AgSAE). The electroreduction of azidothymidine in basic media at these electrodes gives rise to one irreversible cathodic peak. Its potential in 0.05 mol L-1 borate buffer, pH 9.3 at ca. -1050 mV is comparable to that using hanging mercury drop electrode (HMDE). Achieved limits of quantitation are in the 10-7 mol L-1 concentration range for both amalgam electrodes. According to the procedure based on the standard addition technique, the recoveries of known amounts of azidothymidine contained in pharmaceutical preparations available in capsules were 101.41.8% (m-AgSAE), 100.33.5% (p-AgSAE) and 102.01.0% (HMDE) (n=10). A new simple and direct electroanalytical method was developed for the determination of azidothymidine in commercial pharmaceutical preparations. It is based on differential pulse voltammetry at silver solid amalgam electrode with polished surface (p-AgSAE) or surface modified by mercury meniscus (m-AgSAE). The electroreduction of azidothymidine in basic media at these electrodes gives rise to one irreversible cathodic peak. Its potential in 0.05 mol L-1 borate buffer, pH 9.3 at ca. -1050 mV is comparable to that using hanging mercury drop electrode (HMDE). Achieved limits of quantitation are in the 10-7 mol L-1 concentration range for both amalgam electrodes. According to the procedure based on the standard addition technique, the recoveries of known amounts of azidothymidine contained in pharmaceutical preparations available in capsules were 101.41.8% (m-AgSAE), 100.33.5% (p-AgSAE) and 102.01.0% (HMDE) (n=10).
dcterms:title
Voltammetric Determination of Azidothymidine Using Silver Solid Amalgam Electrodes Voltammetric Determination of Azidothymidine Using Silver Solid Amalgam Electrodes
skos:prefLabel
Voltammetric Determination of Azidothymidine Using Silver Solid Amalgam Electrodes Voltammetric Determination of Azidothymidine Using Silver Solid Amalgam Electrodes
skos:notation
RIV/61388955:_____/09:00328330!RIV10-MSM-61388955
n3:aktivita
n17:P n17:Z
n3:aktivity
P(GA203/07/1195), P(IAA400400806), P(LC06035), Z(AV0Z40400503), Z(MSM0021620857)
n3:cisloPeriodika
15
n3:dodaniDat
n14:2010
n3:domaciTvurceVysledku
n9:6104282 Yosypchuk, Bogdan
n3:druhVysledku
n15:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
349859
n3:idVysledku
RIV/61388955:_____/09:00328330
n3:jazykVysledku
n12:eng
n3:klicovaSlova
azidothymidine; Zidovudine; Silver solid amalgam electrode; Differential pulse voltammetry
n3:klicoveSlovo
n11:Silver%20solid%20amalgam%20electrode n11:Zidovudine n11:Differential%20pulse%20voltammetry n11:azidothymidine
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[A6234D73F057]
n3:nazevZdroje
Electroanalysis
n3:obor
n5:CG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:projekt
n8:LC06035 n8:GA203%2F07%2F1195 n8:IAA400400806
n3:rokUplatneniVysledku
n14:2009
n3:svazekPeriodika
21
n3:tvurceVysledku
Leandro, K. Ch. Navrátil, Tomáš Barek, J. Pecková, K. Yosypchuk, Bogdan Moreira, J. C.
n3:wos
000268790300013
n3:zamer
n13:MSM0021620857 n13:AV0Z40400503
s:issn
1040-0397
s:numberOfPages
8