Abstract:
Energy dispersive X-ray fluorescence spectroscopy was used to determine Fe, Cd, Pb, Ni, Mn, Zn, Cu, V, As, Hg and Se in the Nigerian fresh and weathered crude oils. Weathered crudes consisted of fresh crudes weathered for 2, 7 and 14 days under ambient outdoor conditions. Vanadium, nickel, iron and copper concentrations in both the fresh and weathered crudes ranged from 12 to 114 ppm; 4, 2 and 12 ppm; 45 to 182 ppm and 22 to 81 ppm respectively. Other metals, i.e. lead, cadmium and manganese were observed at the 0.42 to 11 ppm level whereas mercury, zinc, arsenic and selenium were present in very low level (0-0.02 ppm). For the weathered report, the values were increasing as weathering progressed. An attempt was made to assess the applicability of V. Ni ratio for passive taggting of oils.
Page(s):
349-351
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 37, Issue: 9, Year: 1994