Real-time qualitative study of forsterite crystal – Melt lithium distribution by laser-induced breakdown spectroscopy

A factor of lithium distribution between single-crystal forsterite (Cr,Li:Mg2SiO4) and its melt are studied by laser-induced breakdown spectroscopy. Lithium content in the crystalline phase is found to achieve a saturation at relatively low Li concentration in the melt (about 0.02%wt.). An algorithm...

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Bibliographic Details
Published in:Spectrochimica acta. Part B: Atomic spectroscopy 2017-11, Vol.137, p.23-27
Main Authors: Lebedev, V.F., Makarchuk, P.S., Stepanov, D.N.
Format: Article
Language:English
Subjects:
Analytical methods
Approximation
Distribution
Emissions
Error analysis
Forsterite
Laser induced breakdown spectroscopy
Lasers
Libs
Lithium
Mathematical analysis
Mathematical models
Normal distribution
Plasma radiation
Plasma spectra
Qualitative research
Radiation
Real time
Real-time analysis
Saturation
Single crystals
Software
Spectra
Spectral emissivity
Spectroscopy
Spectrum analysis
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Summary:A factor of lithium distribution between single-crystal forsterite (Cr,Li:Mg2SiO4) and its melt are studied by laser-induced breakdown spectroscopy. Lithium content in the crystalline phase is found to achieve a saturation at relatively low Li concentration in the melt (about 0.02%wt.). An algorithm and software are developed for real-time analysis of the studied spectra of lithium trace amounts at wide variation of the plasma radiation intensity. The analyzed plasma spectra processing method is based on the calculation of lithium emission part in the total emission of the target plasma for each recorded spectrum followed by the error estimation for the series of measurements in the normal distribution approximation. [Display omitted] •A factor of lithium distribution between single-crystal forsterite are studied.•Lithium content in the crystal is found to achieve a saturation.•An algorithm and software are developed for real-time analysis.•Method is based on the calculation of lithium emission part in the total emission.•Сalculation of lithium emission part for each recorded spectrum is used.
ISSN:0584-8547
1873-3565
DOI:10.1016/j.sab.2017.09.008