Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence

X. K. Shen, H. Wang, Z. Q. Xie, Y. Gao, H. Ling, Y. F. Lu

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Monitoring of light-element concentration in steel is very important for quality assurance in the steel industry. In this work, detection in open air of trace phosphorus (P) in steel using laser-induced breakdown spectroscopy (LIBS) combined with laser-induced fluorescence (LIF) has been investigated. An optical parametric oscillator wavelength-tunable laser was used to resonantly excite the P atoms within plasma plumes generated by a Q-switched Nd:YAG laser. A set of steel samples with P concentrations from 3.9 to 720 parts in 10 6(ppm) were analyzed using LIBS-LIF at wavelengths of 253.40 and 253.56 nm for resonant excitation of P atoms and fluorescence lines at wavelengths of 213.55 and 213.62 nm. The calibration curves were measured to determine the limit of detection for P in steel, which is estimated to be around 0.7 ppm. The results demonstrate the potential of LIBS-LIF to meet the requirements for on-line analyses in open air in the steel industry.

Original languageEnglish (US)
Pages (from-to)2551-2558
Number of pages8
JournalApplied optics
Volume48
Issue number13
DOIs
StatePublished - May 1 2009

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Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy
laser induced fluorescence
phosphorus
Phosphorus
Fluorescence
steels
Steel
Lasers
Iron and steel industry
Wavelength
Optical parametric oscillators
Atoms
Laser tuning
Air
Quality assurance
industries
wavelengths
light elements
air

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence. / Shen, X. K.; Wang, H.; Xie, Z. Q.; Gao, Y.; Ling, H.; Lu, Y. F.

In: Applied optics, Vol. 48, No. 13, 01.05.2009, p. 2551-2558.

Research output: Contribution to journalArticle

Shen, X. K. ; Wang, H. ; Xie, Z. Q. ; Gao, Y. ; Ling, H. ; Lu, Y. F. / Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence. In: Applied optics. 2009 ; Vol. 48, No. 13. pp. 2551-2558.
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