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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 13,
  • Issue 5,
  • pp. 122-123
  • (1959)

Spectrographic Determination of Vanadium and Iron in Petroleum Coke

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Abstract

A rapid spectrographic method has been investigated for the determination of vanadium and iron in coke, ranging in concentration from 0.001 to 0.05 percent The analysis was performed on the volatile-free coke previously powdered and dried by standard procedures. A spark-ignited, low voltage a.c arc was used to excite the sample and results agreed within ±10 percent with those obtained by the ASTM D-271 procedure. Coefficients of variation were 12.8 percent for iron and 5.5 percent for vanadium. The method is applicable to the simultaneous determination of many other metals.

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