scholarly journals GAS CHROMATOGRAPHIC RETENTION BEHAVIOUR OF TRIFLUOROACETYL AND ACETYL DERIVATIVES OF VARIOUS O-ETHYLSORBITOLS

1979 ◽  
Vol 35 (10) ◽  
pp. T419-T428
Author(s):  
Koh-ichi Kajiyama ◽  
Kiyoko Kajita
Keyword(s):  
Chromatographic Retention ◽  
Retention Behaviour ◽  
Derivatives Of

Gas chromatographic retention behaviour of alkylated phenanthrenes on a smectic liquid crystalline phase

1992 ◽  
Vol 627 (1-2) ◽  
pp. 227-239 ◽  
Author(s):  
H. Budzinski ◽  
M. Radke ◽  
P. Garrigues ◽  
S.A. Wise ◽  
Bellocq ◽  
...  
Keyword(s):  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Liquid Crystalline Phase ◽  
Chromatographic Retention ◽  
Retention Behaviour

scholarly journals The separation and sequencing of permethylated peptides by mass spectrometry directly coupled to gas-liquid chromatography

1976 ◽  
Vol 157 (3) ◽  
pp. 777-780 ◽  
Author(s):  
J D Priddle ◽  
K Rose ◽  
R E Offord
Keyword(s):  
Mass Spectrometry ◽  
Molecular Weight ◽  
Chemical Ionization ◽  
Chromatographic Retention ◽  
Gas Liquid Chromatography ◽  
Retention Data ◽  
Primary Sequence ◽  
Peptide Derivatives ◽  
Derivatives Of

The use of g.l.c. coupled to mass spectrometry to separate and sequence permethylated acetyl- and trifluoroacetyl-peptides in a single operation is described. Both electron impact and chemical ionization were used to induce fragmentation, and the latter was found to be more sensitive. Chromatographic retention data are presented which suggest that peptide derivatives of molecular weight of at least 750 are accessible to the technique. The application of our methods to the determination of the primary sequence of proteins is discussed.

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