作者:Rémy Liardon、Ursula Ott-Kuhn、Petr Husek
DOI:10.1002/bms.1200060904
日期:1979.9
type of alpha-amino acid derivative for gas chromatographic separation, have been studied by low resolution mass spectrometry. These derivatives are obtained by reacting alpha-amino acids with dichlorotetrafluoroacetone. Their structure has been established or confirmed for most protein amino acids and several non-protein alpha-amino acids. The mechanisms responsible for the mass spectral pattern have
通过低分辨率质谱法研究了2-双-(氯二氟甲基)-4-取代的1,3-恶唑烷丁-5-酮,一种用于气相色谱分离的新型α-氨基酸衍生物。这些衍生物通过使α-氨基酸与二氯四氟丙酮反应而获得。对于大多数蛋白质氨基酸和几种非蛋白质α-氨基酸,它们的结构已经确定或证实。负责质谱图模式的机制已经合理化。该衍生化过程的一个有趣特征是,它可以将天冬氨酸和谷氨酸与相应的酰胺区分开。已经确定了天冬酰胺和谷氨酰胺衍生物的结构。恶唑烷酮质谱的调查提供了可用于诊断的离子列表。