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Determination of the number and position of methoxyl groups in methylated aldopentoses by mass spectrometry of their trimethylsilyl derivatives

Göran Petersson (Institutionen för teknisk kemi) ; Olof Samuelson (Institutionen för teknisk kemi)
Svensk Papperstidning Vol. 71 (1968), 3, p. 77-84.
[Artikel, refereegranskad vetenskaplig]

A close analogy exists between the mass spectrometric fragmentation of fully methylated aldopentopyranoses and trimethylsilyl derivatives of partially methylated aldopentopyranoses. Hence, mass spectrometry of the trimethylsilyl derivatives permits a simple determination of the number and position of methoxyl groups in partially methylated aldopentoses. Reference substances are not necessary for identification. The method is useful in studies of the structure of polysaccharides.

Nyckelord: methylation analysis, Me3Si derivatives, pentoses


Determination of the number and position of methoxyl groups by deuteromethylation had recently been demonstrated by Russian and German research teams. This study presented a simplified alternative for this crucial problem in carbohydrate analytical chemistry.



Denna post skapades 2010-02-04. Senast ändrad 2010-10-04.
CPL Pubid: 111549

 

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Institutioner (Chalmers)

Institutionen för teknisk kemi (1946-1998)

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Analytisk kemi

Chalmers infrastruktur

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Gas chromatography - mass spectrometry of sugars and related hydroxy acids as trimethylsilyl derivatives