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

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作者
Yoshikazu Nakamoto
Tatsuro Ishimaru
Nobutaka Endo
Koji Matsusaki
机构
[1] Idemitsu Petrochemical Co.,Application Research Section, Chemicals Research Laboratory
[2] Ltd.,Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering
[3] Yamaguchi University,undefined
来源
Analytical Sciences | 2004年 / 20卷
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摘要
A simple and rapid method was established for the direct determination of vanadium in an oil sample using the tungsten-coated 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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页码:739 / 741
页数:2
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