Multi-element analysis by ArF laser excited atomic fluorescence of laser ablated plumes: Mechanism and applications
Yue Cai , Po-Chun Chu , Sut Kam Ho , Nai-Ho Cheung
Front. Phys. ›› 2012, Vol. 7 ›› Issue (6) : 670 -678.
Multi-element analysis by ArF laser excited atomic fluorescence of laser ablated plumes: Mechanism and applications
A new multi-element analysis technique based on laser-excited atomic fluorescence was reviewed. However, the one-wavelength-one-transition constraint was overcome. Numerous elements were induced to fluoresce at a single excitation wavelength of 193 nm. This was possible provided that the analytes were imbedded in dense plumes, such as those produced by pulsed laser ablation. The underlying mechanism of the technique was explained and corroborated. Analytical applications to metals, plastics, ceramics and their composites were discribed. Detection limits in the ng/g range and mass limits of atto moles were demonstrated. Several real-world problems, including the analysis of paint coating for trace lead, the non-destructive analysis of potteries and ink, the chemical profiling of electrode–plastic interfaces, and the analysis of ingestible lead colloids were discussed.
laser-excited atomic fluorescence (LEAF) / argon fluoride laser / laser plume spectroscopy / multi-element analysis
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Consumer Product Safety Improvement Act 2008, US Product Safety Commission, test method CPSC-CH-E1003-09 |
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For a comparison of the analytical performance of PLEAF against ICP-MS, see: S. K. Lau, Minimally Destructive and Multi-element Analysis of Stainless Steel by ArF Laser- Induced Plume Emissions, Thesis for the Degree of Master of Philosophy, Section 2.4, Hong Kong Baptist University, 2012 |
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Higher Education Press and Springer-Verlag Berlin Heidelberg
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