Isolation and Characterization of Metalloporphyrins from a Heavy Crude Oil by Soxhlet Adsorption Chromatography and HPLC-SEC
| Autor: | C. De La Cruz, B. Rangel, Nelson Márquez, F. Ysambertt, R. Bauza |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Chromatography
Chemistry Process Chemistry and Technology General Chemical Engineering Extraction (chemistry) Filtration and Separation Fraction (chemistry) General Chemistry High-performance liquid chromatography Hexane chemistry.chemical_compound Methanol Acetonitrile Benzene Graphite furnace atomic absorption |
| Zdroj: | Separation Science and Technology. 30:2539-2550 |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496399508021400 |
| Popis: | An extraction and purification method for the isolation of metalloporphyrins from a heavy crude oil is reported. The metalloporphyrins are extracted from a Boscan crude oil by a Soxhlet extraction method and monitored by UV-Vis and graphite furnace atomic absorption (GFAA) spectroscopies. The first fraction is extracted with methanol and the second one with acetonitrile; both fractions are purified by adsorption chromatography using hexane benzene and dimethylformamide/benzene mixtures to isolate the metalloporphyrin species according to their polarities. HPLC fractionation and SEC molecular weight distribution techniques are combined to characterize these fractions. |
| Databáze: | OpenAIRE |
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