Skip to main content

Spectroscopy of Laser Plumes for Atto-Mole and ng/g Elemental Analysis

Buy Article:

$63.00 plus tax (Refund Policy)


Two all-optical analytical techniques are reviewed. Both are capable of highly sensitive multi-element analysis. One is by means of resonance-enhanced plasma spectroscopy. It minimizes the continuum background associated with laser-induced plasmas. Relative to laser-induced breakdown spectroscopy, the signal-to-noise ratio is improved by orders of magnitude, thus allowing the quantitation of sodium and potassium at the single blood cell level. The other technique utilizes laser-excited atomic fluorescence. It has been traditionally handicapped by its one wavelength-one transition specificity. We showed, however, that numerous elements could be induced to fluoresce at a single excitation wavelength of 193 nm provided that the analytes were imbedded in dense plumes, such as those produced by pulsed laser ablation. This method eliminates the continuum plasma background and sub-ppb sensitivity was demonstrated in the analysis of aqueous lead colloids.

Keywords: Laser-induced breakdown spectroscopy; argon-fluoride laser; laser ablation plumes; laser-excited atomic fluorescence; resonance-enhanced plasma spectroscopy

Document Type: Research Article


Affiliations: Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China

Publication date: 2007-05-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more