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*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

20 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)670-678
Number of pages9
JournalFrontiers of Physics
Volume7
Issue number6
DOIs
Publication statusPublished - Dec 2012

Scopus Subject Areas

  • Physics and Astronomy (miscellaneous)

User-Defined Keywords

  • argon fluoride laser
  • laser plume spectroscopy
  • laser-excited atomic fluorescence (LEAF)
  • multi-element analysis

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