title: Methyl enol ethers as artefacts in capillary gas chromatographic profiles of aldehyde dimethyl acetals.
abstract: Methyl enol ethers are detected within the capillary gas chromatographic profiles of aldehyde dimethyl acetals derived from human red cell plasmalogens or from a synthetic aldehyde mixture. They arise from the dimethyl acetals via methanol elimination as artefacts of the injection technique. In a nutritional experiment, the probands showed a rising proportion of dimethyl acetals in the phospholipid fraction of their erythrocyte ghosts; this fact is seen as an effect of the lipid composition of the milk fat administered.
mesh_terms: D000080:Acetals / Q000097:blood*; D000447:Aldehydes / Q000097:blood*; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D004910:Erythrocyte Membrane / Q000032:analysis; D004912:Erythrocytes / Q000032:analysis; D006801:Humans; D008055:Lipids / Q000097:blood*; D008738:Methyl Ethers / Q000097:blood*; D010743:Phospholipids / Q000097:blood; D010955:Plasmalogens / Q000032:analysis; D013237:Stereoisomerism
chemical_list: D000080:Acetals; D000447:Aldehydes; D008055:Lipids; D008738:Methyl Ethers; D010743:Phospholipids; D010955:Plasmalogens