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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F08%3A00005799%21RIV10-MSM-15310___
rdf:type
skos:Concept n6:Vysledek
dcterms:description
Electron ionization (EI), methane chemical ionization (CI), and collision-induced dissociation (CID) mass spectra of complete series of positional monochloro-isomers of 3-hydroxy-2-phenyl-4(1H)-quinolinone are evaluated and discussed. It is shown that in the CI experiments, in addition to the protonated precursor molecules, odd-electron molecular ions are formed and this affects the appearance of the CID spectra. The influence of different direct probes and other experimental parameters such as the pressure of the reagent gas, isolation width, or collision energy was studied. El, Cl and CID spectra of the positional isomers show essentially the same fragmentation pathways but comparisons of the relative signal intensities of various product ions reveal some positional effects. Different isomers are also distinguished. The compounds call be divided into two groups using diagnostic ions (chloro substitution of the quinolinone moiety or the phenyl ring) or identified using a created spectral database. It Electron ionization (EI), methane chemical ionization (CI), and collision-induced dissociation (CID) mass spectra of complete series of positional monochloro-isomers of 3-hydroxy-2-phenyl-4(1H)-quinolinone are evaluated and discussed. It is shown that in the CI experiments, in addition to the protonated precursor molecules, odd-electron molecular ions are formed and this affects the appearance of the CID spectra. The influence of different direct probes and other experimental parameters such as the pressure of the reagent gas, isolation width, or collision energy was studied. El, Cl and CID spectra of the positional isomers show essentially the same fragmentation pathways but comparisons of the relative signal intensities of various product ions reveal some positional effects. Different isomers are also distinguished. The compounds call be divided into two groups using diagnostic ions (chloro substitution of the quinolinone moiety or the phenyl ring) or identified using a created spectral database. It
dcterms:title
Ionization and fragmentation of monochloro-isomers of 3-hydroxy-2-phenyl-4(1H)-quinolinone Ionization and fragmentation of monochloro-isomers of 3-hydroxy-2-phenyl-4(1H)-quinolinone
skos:prefLabel
Ionization and fragmentation of monochloro-isomers of 3-hydroxy-2-phenyl-4(1H)-quinolinone Ionization and fragmentation of monochloro-isomers of 3-hydroxy-2-phenyl-4(1H)-quinolinone
skos:notation
RIV/61989592:15310/08:00005799!RIV10-MSM-15310___
n3:aktivita
n12:Z n12:S n12:P
n3:aktivity
P(KJB400550704), P(LC07017), S, Z(AV0Z50200510), Z(MSM0021620857), Z(MSM6198959216)
n3:cisloPeriodika
18
n3:dodaniDat
n17:2010
n3:domaciTvurceVysledku
n4:4316851 n4:4694554 n4:8225583
n3:druhVysledku
n18:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
373285
n3:idVysledku
RIV/61989592:15310/08:00005799
n3:jazykVysledku
n7:eng
n3:klicovaSlova
ELECTRON-IMPACT; MASS-SPECTRA; X-RAY; DERIVATIVES; DENSITY
n3:klicoveSlovo
n8:X-RAY n8:MASS-SPECTRA n8:DENSITY n8:ELECTRON-IMPACT n8:DERIVATIVES
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[59AE6E08FD8E]
n3:nazevZdroje
Rapid Communications in Mass Spectrometry
n3:obor
n13:CB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:projekt
n10:LC07017 n10:KJB400550704
n3:rokUplatneniVysledku
n17:2008
n3:svazekPeriodika
22
n3:tvurceVysledku
Grepl, Martin Roithová, Jana Hradil, Pavel Lemr, Karel
n3:zamer
n11:MSM6198959216 n11:AV0Z50200510 n11:MSM0021620857
s:issn
0951-4198
s:numberOfPages
10
n14:organizacniJednotka
15310