Neutron activation analysis of petroleum feeds and products of a catalytic cracking unit

Bergerioux, C.; Žikovský, L.

doi:10.1007/bf02519869

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2004

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“…Vanadium in heavy oil has been determined by use of spectrophotometry, 1,2 flame atomic absorption spectrometry (FAAS), 3,4 graphite furnace atomic absorption spectrometry (GFAAS), 5,6 inductively coupled plasma-atomic emission spectrometry (ICP-AES), 7 and instrumental neutron activation analysis (INAA). 8 Among them, INAA includes disadvantages of high cost and limited availability. These methods except for INAA have been followed by the sample digestion processes with acids, which also subject to disadvantages such as long times, analyte loss, and contamination.…”

Section: Introductionmentioning

confidence: 99%

Determination of Vanadium in Heavy Oils by Atomic Absorption Spectrometry Using a Graphite Furnace Coated with Tungsten

et al. 2004

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A simple and rapid method was established for the direct determination of vanadium in an oil sample using the tungstencoated graphite-furnace AAS. The interference of the sulfur compound could be suppressed by choosing the ashing temperature. If the sulfur concentration in the sample is diluted to 1.0 wt% or less, the interference can be suppressed. This proposed method should make important contributions to the quality control of petroleum refineries.

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