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Application of acetate derivatives for gas chromatography-mass spectrometry: Novel approaches on carbohydrates, lipids and amino acids analysis

Tipo de material: TextoTextoSeries ; Journal of Chromatography A, 1208(1-2), p.215-222, 2008Trabajos contenidos:
  • Sassaki, G.L
  • Souza, L.M
  • Serrato, R.V
  • Cipriani, T.R
  • Gorin, P.A.J
  • Iacomini, M
Tema(s): Recursos en línea: Resumen: The structure of glycoconjugates has been determined by several chromatographic methods, however gas chromatography-mass spectrometry (GC-MS)has been widely used to identify and quantify the volatile trimethylsilyl and fluoroacyl derivatives. Adapting the reduction/acetylation strategies, we had performed the derivatization of all monosaccharide class, as well as amino acids and OH-fatty acids as fromdifferent glycoconjugates. Uronic acids gave characteristic ions atm/z 143, 156 and 173, and 19 amino acids derivatives, gave molecular ions [M]+ and daughter ions of [M-59]+ and [M-43]+ on electron impact (EI)-MS, which provide their rapid identification
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The structure of glycoconjugates has been determined by several chromatographic methods, however gas chromatography-mass spectrometry (GC-MS)has been widely used to identify and quantify the volatile trimethylsilyl and fluoroacyl derivatives. Adapting the reduction/acetylation strategies, we had performed the derivatization of all monosaccharide class, as well as amino acids and OH-fatty acids as fromdifferent glycoconjugates. Uronic acids gave characteristic ions atm/z 143, 156 and 173, and 19 amino acids derivatives, gave molecular ions [M]+ and daughter ions of [M-59]+ and [M-43]+ on electron impact (EI)-MS, which provide their rapid identification

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