✦ LIBER ✦

Structure and Origin of Artifacts in the Analysis of Plasmalogens

✍ Scribed by Dudda, Angela; Spiteller, Gerhard

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 390 KB
Volume: 31
Category: Article
ISSN: 1076-5174
DOI: 10.1002/(sici)1096-9888(199603)31:3<303::aid-jms304>3.0.co;2-5

No coin nor oath required. For personal study only.

✦ Synopsis

The determination of aldehydic compounds was achieved by gas chromatographic/mass spectrometric analysis of derived thioacetals. These were produced, together with artifacts, in a one-step reaction when plasmalogens were treated with ethane-1,2-dithiol and BF, . The artifacts were recognized to be 2-alkylidene-l,3dithiolanes derived from phospholipids. The latter were converted by BF, treatment into diacylglycerols, which were transformed in a complicated reaction into 2-alkyl-2-I (2-mercaptoethyl)thio] -1,3dithiolanes. These compounds were decomposed thermally, e.g. in the injector of a gas chromatograph, in Z-alkylidene-1,3-dithiolanes. This reaction is not restricted to phospholipids but occurs with all monoacylated glycols.

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