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Title: Molecular characterization and profile identifications of vanadyl compounds in heavy crude petroleums by liquid chromatography/graphite furnace atomic absorption spectrometry

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac00267a048· OSTI ID:6012282

Four heavy crude petroleums, Boscan, Cerro Negro, Wilmington, and Prudhoe Bay, have been examined by high-performance liquid chromatography in combination with graphite furnace atomic absorption detection (HPLC/GFAA) to provide both a vanadium fingerprint and a molecular weight categorization of the vanadyl porphyrin and non-porphyrin compounds present. We have also attempted to speciate the vanadyl porphyrin and non-porphyrin compounds in these heavy crude oils by comparison of their size exclusion and polar aminocyano separated vanadium histograms to authentic compounds. 35 references, 8 figures, 3 tables.

Research Organization:
Univ. of California, Berkeley
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6012282
Journal Information:
Anal. Chem.; (United States), Vol. 56:3
Country of Publication:
United States
Language:
English