Analysis of wax and resin components from Minnesota peat bog
โ Scribed by Durga Kumari
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 502 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0166-5162
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A rapid method, suitable for the recovery of ammonia, urea, and a-amino N for "N-isotopic analysis from biological fluids is described. The method, using a cationic-exchange resin to bind ammonia from neutral solution, has been adapted to allow the subsequent direct release of molecular N for isotop
Resins were extracted from crude oils by adsorption onto various particles followed by desorption using various solvent combinations in a two-step desorption procedure. The extracted resins were analyzed using infrared spectroscopy, followed by local principal component analysis on the polar and aro