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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 42, Number 3
JKCSEZ 42(3)
June 20, 1998 

 
Title
Structural Study of Oligosaccharides by Low Energy Collision Tandem Mass Spectrometry : Effect of the Acetylation Derivatization

저에너지 충돌 탄뎀 질량분석법을 이용한 올리고당의 연결 구조 연구: 아세틸화 반응이 미치는 영향
Author
Eunsun Yoo Yoon

류은순
Keywords
Abstract
올리고당의 구조중 연결위치(linkage position)는 충돌 탄뎀 질량분석법(FAB CAD MS/MS: Fast Atom Bombardment Collision Activated Dissociation Mass Spectrometry/Mas Spectrometry)을 이용하여 알 수 있다. 연결위치-이성질체 올리고당을 아세틸화시키면 자유올리고당보다 연결위치의 구별이 쉽고 독특한 분절이온 패턴을 얻을 수 있다. 그 이유는 연결위치에 따라 각 올리고당이 충돌에너지(collision energy)를 흡수하여 glycosidic 결합 주위를 회전하는 회전운동의 자유도가 달라지기 때문이다.

Linkage positions in oligosaccharides may be obtained by FAB CAD MS/MS (Fast Atom Bombardment Collision Activated Dissociation Mass Spectrometry/Mass Spectrometry). Acetylated derivatives of the linkage-isomeric trisaccharides exhibited more useful product ion patterns than the free trisaccharides and provided specific fragmentation patterns according to linkage positions. The reason for the useful linkage dependent spectra patterns of acetylated forms is related to the ability of each linkage in the oligosaccharides to absorb different levels of collision energy and rotational freedom of the individual glycosidic linkage.

Page
297 - 301
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