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Journal of Analytical Chemistry

, Volume 66, Issue 14, pp 1411–1416 | Cite as

Lumas-30 time-of-flight mass spectrometer with pulsed glow discharge for direct determination of nitrogen in steel

  • A. A. GaneevEmail author
  • A. R. Gubal’
  • V. I. Mosichev
  • N. V. Pershin
  • S. N. Petrov
  • S. V. Potapov
  • K. N. Uskov
Articles

Abstract

The problem of quantitative determination of nitrogen in steel has become one of the main tasks in modern metallurgy due to the intensive use of nitrogen as an alloy additive. The presence of such additives is known to improve a number of steel characteristics (corrosion resistance, nonmagnetic behavior, strength, etc.). Both direct and indirect analytical methods have many disadvantages and call for revision. The direct technique of nitrogen determination in steel using a a pulsed glow discharge time-of-flight mass spectrometry is proposed in this paper. Successful application of the method for steel samples with different nitrogen concentrations was demonstrated. Dependence of the nitrogen signal intensity as a function of the repelling pulse delay was investigated, and the optimal delay time was obtained. The detection limit of for the proposed method was found to be 0.03%.

Keywords

time-of-flight mass spectrometry pulsed glow discharge 

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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • A. A. Ganeev
    • 1
    Email author
  • A. R. Gubal’
    • 1
  • V. I. Mosichev
    • 2
  • N. V. Pershin
    • 2
  • S. N. Petrov
    • 2
  • S. V. Potapov
    • 1
  • K. N. Uskov
    • 1
  1. 1.Analytical Chemistry Department, Faculty of ChemistrySt. Petersburg State University, PeterhoffSt. PetersburgRussia
  2. 2.FSUE CRISM PrometeiSt. PetersburgRussia

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