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Related Concept Videos

Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
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Related Experiment Video

Updated: Jul 14, 2026

Dependence of Laser-induced Breakdown Spectroscopy Results on Pulse Energies and Timing Parameters Using Soil Simulants
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Approach to detection in laser-induced breakdown spectroscopy.

M Mueller1, I B Gornushkin, S Florek

  • 1Federal Institute for Materials Research and Testing (BAM), Richard Willstätter Strasse 11, D-12489 Berlin, Germany. maike.mueller@bam.de

Analytical Chemistry
|May 17, 2007
PubMed
Summary

Nonintensified CCD detectors, used with a mechanical chopper, offer comparable or better performance than intensified ICCD detectors for laser-induced breakdown spectroscopy (LIBS) plasma emission detection in steel analysis.

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Area of Science:

  • Analytical Chemistry
  • Spectroscopy
  • Materials Science

Background:

  • Gated detection with intensified CCDs (ICCDs) is standard for laser-induced breakdown spectroscopy (LIBS).
  • ICCD systems are costly and less robust than nonintensified CCDs.
  • Exploring cost-effective alternatives for LIBS plasma emission detection is crucial.

Purpose of the Study:

  • To compare the performance of intensified (ICCD) and nonintensified (CCD) detectors in LIBS.
  • To evaluate detector suitability for plasma emission detection in steel analysis.
  • To assess signal-to-noise ratios and limits of detection for various elements.

Main Methods:

  • Theoretical and experimental comparison of ICCD and CCD detectors.
  • Utilizing a mechanical chopper with the CCD to block early continuum radiation.
  • Sequential attachment of detectors to an echelle spectrometer under identical conditions.
  • Inducing laser plasma on steel samples in atmospheric conditions.

Main Results:

  • No substantial performance difference observed between CCD and ICCD detectors.
  • CCD detectors achieved comparable or superior signal-to-noise ratios and limits of detection.
  • Key elements (Si, Ni, Cr, Mo, Cu, V) in steel showed similar or improved detection with CCD.
  • Simulations confirmed detector responses, especially under quantum (photon) noise limits.

Conclusions:

  • Nonintensified CCD detectors with mechanical choppers are a viable and cost-effective alternative to ICCDs for LIBS.
  • This approach maintains or enhances analytical performance for elemental analysis in steel.
  • The findings support wider adoption of simpler, more robust detector systems in LIBS applications.