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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F09%3A00010408%21RIV10-MSM-15310___
rdf:type
n10:Vysledek skos:Concept
dcterms:description
Electrospray ionization generates trimeric diastereoisomeric clusters as the first important step in chiral analysis by mass spectrometry using the Cooks' kinetic method. Cu2+ and L-tryptophan were used as a central metal and as a chiral reference ligand, respectively. The comparison of electrospray and nanoelectrospray showed that although the electrospray system was generally more robust, the application of nanoelectrospray was essential for performing successful analysis in some cases, especially for real samples. Basically, no significant differences between the ion sources were observed for model samples of analytes (isoleucine, ephedrine, phenylalanine) without interfering matrix. On the other hand, model samples containing sodium chloride and a buffer containing a real sample (drug formulation Mucoseptonex E in which D-ephedrine is the active substance) could not be analyzed using ESI, whereas nano-ESI gave satisfactory results. An explanation is based on the differences of ionization proc Electrospray ionization generates trimeric diastereoisomeric clusters as the first important step in chiral analysis by mass spectrometry using the Cooks' kinetic method. Cu2+ and L-tryptophan were used as a central metal and as a chiral reference ligand, respectively. The comparison of electrospray and nanoelectrospray showed that although the electrospray system was generally more robust, the application of nanoelectrospray was essential for performing successful analysis in some cases, especially for real samples. Basically, no significant differences between the ion sources were observed for model samples of analytes (isoleucine, ephedrine, phenylalanine) without interfering matrix. On the other hand, model samples containing sodium chloride and a buffer containing a real sample (drug formulation Mucoseptonex E in which D-ephedrine is the active substance) could not be analyzed using ESI, whereas nano-ESI gave satisfactory results. An explanation is based on the differences of ionization proc
dcterms:title
Nanoelectrospray versus electrospray in chiral analysis by the kinetic method Nanoelectrospray versus electrospray in chiral analysis by the kinetic method
skos:prefLabel
Nanoelectrospray versus electrospray in chiral analysis by the kinetic method Nanoelectrospray versus electrospray in chiral analysis by the kinetic method
skos:notation
RIV/61989592:15310/09:00010408!RIV10-MSM-15310___
n3:aktivita
n12:Z n12:P
n3:aktivity
P(GA203/07/0765), Z(MSM6198959216)
n3:cisloPeriodika
2
n3:dodaniDat
n7:2010
n3:domaciTvurceVysledku
n8:4316851 n8:4140702 n8:8390924 n8:6833446
n3:druhVysledku
n13:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
328409
n3:idVysledku
RIV/61989592:15310/09:00010408
n3:jazykVysledku
n17:eng
n3:klicovaSlova
Chiral analysis; Kinetic method; Mass spectrometry; Electrospray; Nanoelectrospray; Amino acids; Drugs; Diastereoisomeric clusters; Gas-phase
n3:klicoveSlovo
n4:Diastereoisomeric%20clusters n4:Mass%20spectrometry n4:Amino%20acids n4:Gas-phase n4:Electrospray n4:Drugs n4:Kinetic%20method n4:Nanoelectrospray n4:Chiral%20analysis
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[53945EA876FB]
n3:nazevZdroje
Collection of Czechoslovak Chemical Communications
n3:obor
n5:CB
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n16:GA203%2F07%2F0765
n3:rokUplatneniVysledku
n7:2009
n3:svazekPeriodika
74
n3:tvurceVysledku
Lemr, Karel Ranc, Václav Bednář, Petr Havlíček, Vladimír
n3:zamer
n19:MSM6198959216
s:issn
0010-0765
s:numberOfPages
10
n18:organizacniJednotka
15310