CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

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

Göran Petersson (Institutionen för teknisk kemi) ; Olof Samuelson (Institutionen för teknisk kemi)
Svensk Papperstidning Vol. 71 (1968), 20, p. 731-738.
[Artikel, refereegranskad vetenskaplig]

Trimethylsilylation of methylated aldohexopyranoses and mass spectrometry of the mixed derivatives permits a simple determination of the number and location of the methoxyl groups. Advantage is taken of the close analogy between the fragmentation of the mixed derivatives and of fully methylated species. The fragmentation is discussed on the basis of the spectra of twenty species.

Spectra of derivatives of hexofuranoses and ethylated hexopyranoses indicate that the method can be applied to these species as well.

Nyckelord: methylation analyses, Me3Si derivatives, hexoses

Interpretation of the mass spectra was partly based on studies by Professors Chizhov and Kochetkov at the Zelinsky Institute in Moscow. In 1971 Göran Petersson visited the institute for a perid of one month.

An alternative much applied method for methylation analysis, developed by Professor Lindberg and coworkers in Stockholm, converted partially methylated sugars to alditol acetates for structural analysis.

Denna post skapades 2010-02-04. Senast ändrad 2010-10-04.
CPL Pubid: 111553


Läs direkt!

Lokal fulltext (fritt tillgänglig)

Institutioner (Chalmers)

Institutionen för teknisk kemi (1946-1998)


Analytisk kemi

Chalmers infrastruktur

Relaterade publikationer

Denna publikation ingår i:

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