Emission characteristics of iron-chromium alloys in laser-induced plasma optical emission spectrometry

Haruhiko Shimada, Kazuaki Wagatsuma

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In low-pressure argon laser-induced plasma spectrometry, variations in the emission intensities of iron and chromium spectral lines in iron-chromium binary alloy were investigated to obtain a good calibration curve for the quantitative analysis when the experimental parameters for the laser irradiation were optimized. By measuring the temporal variation both in the intensity ratios between iron and chromium emission lines and in the excitation temperature for the atomic lines of iron, it was found that the excitation mechanism of the neutral atomic lines would be different from that of the singly-ionized lines. A linear calibration curve for chromium over a wide concentration range could be obtained when atomic or ionic line pairs of chromium and iron whose excitation energies were similar were employed.

Original languageEnglish
Pages (from-to)59-65
Number of pages7
JournalBUNSEKI KAGAKU
Volume60
Issue number1
DOIs
Publication statusPublished - 2011

Keywords

  • Argon laser-induced plasma
  • Calibration curve
  • Excitation mechanism
  • Iron-chromium alloy
  • Optimum analytical line

ASJC Scopus subject areas

  • Analytical Chemistry

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