Spectrochemical analysis of powder using 355 nm Nd-YAG laser-induced low-pressure plasma

The applicability of spectrochemical analysis of minute amounts of powder samples was investigated using an ultraviolet Nd-YAG laser (355 nm) and low-pressure ambient air. A large variety of chemical powder samples of different composition were employed in the experiment. These included a mixture of...

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Bibliographic Details
Published in:Analytical and bioanalytical chemistry 2008-04, Vol.390 (7), p.1781-1787
Main Authors: Lie, Zener S, Pardede, M, Hedwig, R, Suliyanti, M. M, Kurniawan, Koo Hendrik, Munadi, Lee, Yong-Inn, Kagawa, Kiichiro, Hattori, Isamu, Tjia, May On
Format: Article
Language:English
Subjects:
Air
Analytical Chemistry
Biochemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Direct powder analysis
Food Science
Gold - analysis
Laboratory Medicine
Laser-induced plasma spectroscopy
Lasers, Solid-State
Low-pressure plasma
Monitoring/Environmental Analysis
Organometallic Compounds - analysis
Original Paper
Particle Size
Powder sample
Powders - analysis
Pressure
Reproducibility of Results
Sensitivity and Specificity
Shock wave
Soil - analysis
Spectrochemical analysis
Spectrum Analysis - instrumentation
Spectrum Analysis - methods
Sulfides - analysis
UV laser
Zinc Compounds - analysis
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Summary:The applicability of spectrochemical analysis of minute amounts of powder samples was investigated using an ultraviolet Nd-YAG laser (355 nm) and low-pressure ambient air. A large variety of chemical powder samples of different composition were employed in the experiment. These included a mixture of copper(II) sulfate pentahydrate, zinc sulfide, and chromium(III) sulfate n-hydrate powders, baby powder, cosmetic powders, gold films, zinc supplement tablet, and muds and soils from different areas. The powder samples were prepared by pulverizing the original samples to an average size of around 30 μm in order to trap them in the tiny micro holes created on the surface of the quartz subtarget. It was demonstrated that in all cases studied, good quality spectra were obtained with low background, free from undesirable contamination by the subtarget elements and featuring ppm sensitivity. A further measurement revealed a linear calibration curve with zero intercept. These results clearly show the potential application of this technique for practical qualitative and quantitative spectrochemical analysis of powder samples in various fields of study and investigation.
ISSN:1618-2642
1618-2650
DOI:10.1007/s00216-008-1926-y