Composite glycerol/graphite/aromatic acid matrices for thin-layer chromatography/matrix-assisted laser desorption/ionization mass spectrometry of heterocyclic compounds.
J Chromatogr A
; 1470: 118-122, 2016 Oct 28.
Article
em En
| MEDLINE
| ID: mdl-27720171
ABSTRACT
New composite matrices have been suggested for the analysis of mixtures of different synthetic organic compounds (N-containing heterocycles and erectile dysfunction drugs) by thin layer chromatography/matrix-assisted laser desorption ionization time-of-flight mass spectrometry (TLC/MALDI-TOF). Different mixtures of classical MALDI matrices and graphite particles dispersed in glycerol were used for the registration of MALDI mass spectra directly from TLC plates after analytes separation. In most of cases, the mass spectra possessed [M+H]+ ions; however, for some analytes only [M+Na]+ and [M+K]+ ions were observed. These ions have been used to generate visualized TLC chromatograms. The described approach increases the desorption/ionization efficiencies of analytes separated by TLC, prevent spot blurring, simplifies and decrease time for sample preparation.
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MEDLINE
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Ácidos Cumáricos
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Gentisatos
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Glicerol
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Grafite
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Compostos Heterocíclicos de 4 ou mais Anéis
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Compostos Heterocíclicos com 1 Anel
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Compostos Heterocíclicos com 2 Anéis
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Indóis
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article