ISOLATION AND CHARACTERIZATION OF METALLOPORPHYRINS FROM A HEAVY CRUDE-OIL BY SOXHLET ADSORPTION CHROMATOGRAPHY AND HPLC-SEC

Authors
YSAMBERTT F MARQUEZ N RANGEL B BAUZA R DELACRUZ C
Citation
F. Ysambertt et al., ISOLATION AND CHARACTERIZATION OF METALLOPORPHYRINS FROM A HEAVY CRUDE-OIL BY SOXHLET ADSORPTION CHROMATOGRAPHY AND HPLC-SEC, Separation science and technology, 30(12), 1995, pp. 2539-2550
Citations number
17
Categorie Soggetti
Engineering, Chemical","Chemistry Analytical
Journal title
Separation science and technology → ACNP
ISSN journal
01496395
Volume
30
Issue
12
Year of publication
1995
Pages
2539 - 2550
Database
ISI
SICI code
0149-6395(1995)30:12<2539:IACOMF>2.0.ZU;2-D
Abstract
An extraction and purification method for the isolation of metalloporp hyrins from a heavy crude oil is reported. The metalloporphyrins are e xtracted from a Boscan crude oil by a Soxhlet extraction method and mo nitored by UV-Vis and graphite furnace atomic absorption (GFAA) spectr oscopies. The first fraction is extracted with methanol and the second one with acetonitrile; both fractions are purified by adsorption chro matography 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.