首页|Laser-induced plume fluorescence for ultrasensitive and simultaneous multianalyte analysis - A review
Laser-induced plume fluorescence for ultrasensitive and simultaneous multianalyte analysis - A review
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NSTL
Elsevier
This is a comprehensive review of the research work on ultraviolet laser-induced fluorescence of dense plumes for ultra-trace material analysis. It covers the studies published between 2005 and 2021. By using this technique, numerous atomic and molecular analytes can be induced to fluoresce simultaneously at a single excitation wavelength, provided that two criteria are met. First, that the excitation wavelength is in the vacuum ultraviolet. Second, that the analytes are imbedded in dense plumes, such as those produced by pulsed laser ablation. The review is divided into three parts. In part I, the underlying mechanism is explained conceptually and corroborated experimentally. In part II, the analytical applications to ceramics, metals, plastics, and their composites are summarized. Detection limits in the ng/g range and mass limits of atto moles were demonstrated. Several real-world problems, including the analysis of paints for trace lead, the non-destructive sorting of potteries, the forensic analysis of written and printed inks, and the analysis of ingestible lead colloids in drinking water are discussed. In part III, highly effective denoising algorithms based on the linear normalizability of the fluorescence signal are described. They facilitated the soft and robust classifications of antiques and artworks. The review concludes with suggestions for further studies.
NSTL
Elsevier
