Elemental analysis of slurry samples with laser induced breakdown spectroscopy

Journal Article · Sat May 01 00:00:00 EDT 2010 · Applied Optics

DOI:https://doi.org/10.1364/AO.49.000C21· OSTI ID:22036478

Eseller, Kemal E; Tripathi, Markandey M; Yueh, Fang-Yu; Singh, Jagdish P

Direct analysis of wet slurry samples with laser induced breakdown spectroscopy (LIBS) is challenging due to problems of sedimentation, splashing, and surface turbulence. Also, water can quench the laser plasma and suppress the LIBS signal, resulting in poor sensitivity. The effect of water on LIBS spectra from slurries was investigated. As the water content decreased, the LIBS signal was enhanced and the standard deviation was reduced. To improve LIBS slurry analysis, dried slurry samples prepared by applying slurry on PVC coated slides were evaluated. Univariate and multivariate calibration was performed on the LIBS spectra of the dried slurry samples for elemental analysis of Mg, Si, and Fe. Calibration results show that the dried slurry samples give a good correlation between spectral intensity and elemental concentration.

• OSTI ID: 22036478
• Journal Information: Applied Optics, Vol. 49, Issue 13; Other Information: (c) 2010 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6935
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
54 ENVIRONMENTAL SCIENCES
BREAKDOWN
CALIBRATION
CORRELATIONS
IRON
LASERS
MAGNESIUM
MULTIVARIATE ANALYSIS
PLASMA
PVC
SEDIMENTATION
SENSITIVITY
SIGNALS
SILICON
SLURRIES
SPECTRA
SPECTROSCOPY
STANDARDS
SURFACES
TURBULENCE
WATER