Complete GC-SIM/MS separation and identification of 19 steroids (including several steroid isomers) in a male urine sample, as their per-trimethylsilyl ethers, is described. Trimethylsilylation of their functional groups (hydroxyl and carbonyl) was achieved by a rapid, simplified and one-step deriva
✦ LIBER ✦
GC-MS identification of endogenous gibberellins and gibberellin conjugates as their permethylated derivatives
✍ Scribed by Laurent Rivier; Paul Gaskin; Kum-yul S. Albone; Jake MacMillan
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 534 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0031-9422
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## Abstract Fatty acids from blood serum lipids and fish oil preparations are derivatized with 2‐amino‐2‐methyl‐1‐propanol to form 2‐substituted 4,4‐dimethyloxazolines. The derivatives are separated on a 25 m × 0.25 mm FFAP column and identified by mass spectrometry using electron impact ionization