An Analytical Method for Oxygenated Nonhydrocarbonsin Sediments and Crudes
- VernacularTitle:沉积物和原油中常见含氧化合物的分离分析
- Author:
Shuangqing WANG
;
Peirong WANG
- Publication Type:Journal Article
- From:
Chinese Journal of Analytical Chemistry
2001;29(3):276-279
- CountryChina
- Language:Chinese
-
Abstract:
An analytical method for seperating nonhydrocarbons in sediments and crudes into an acidic fraction, a neutral fraction (Ⅰ), and a more polar neutral neutral fraction (Ⅱ) is reported. With this method, components only appear in individual fractions. Fatty acids and polyols and polyones are seperated into the acidic fraction; mono-ketones, esters and straight-chain alkanols fall into the neutral fraction Ⅰ; Streols are found in the neutral fraction Ⅱ. No evident alteration of ratios of the components through the separation procedures is observed. Erucic acid, 5α(H)-androstan-17-one, and 5α(H)-androstan-3β-ol are selected first time as internal standards for sterols in acidic fraction, neutral fraction Ⅰ and Ⅱ, respectively. They are good standards for quantitation of the components with gas chromatography, especially 5α(H)-androstan-3β-ol with in the first time an interal standard for quantitation of sterols. The analytical method has been proved to be effective by seperation of more than hundred sedimental samples
