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Microdischarges for Analytical Atomic Spectrometry: Design Considerations and Applications

Atomic Spectroscopy

  1. Joachim Franzke,
  2. Cordula Meyer,
  3. Saskia Müller,
  4. Tobias Krähling,
  5. Antje Michels

Published Online: 15 JUN 2011

DOI: 10.1002/9780470027318.a9187

Encyclopedia of Analytical Chemistry

Encyclopedia of Analytical Chemistry

How to Cite

Franzke, J., Meyer, C., Müller, S., Krähling, T. and Michels, A. 2011. Microdischarges for Analytical Atomic Spectrometry: Design Considerations and Applications. Encyclopedia of Analytical Chemistry. .

Author Information

  1. Leibniz-Institut für analytische Wissenschaften — ISAS — e.V., Dortmund, Germany

Publication History

  1. Published Online: 15 JUN 2011

Abstract

Miniaturized analytical devices are more attractive than their macroscopic counterparts. Downscaling the size reduces the analyte volumes and enables faster analysis systems because of reduced transport lengths, and therefore miniaturized analysis systems are cheaper and quicker to use. Especially, microplasmas coupled with optical spectrometry are important tools for element analysis. The microplasma reflects the miniaturized version of a macroscopic, full-size plasma and acts as the sample dissociation and excitation source. Microplasmas can be generated in various forms such as direct current, capacitively coupled, microwave-induced, or inductively coupled plasmas. This article reviews recent developments of microplasmas for analytical atomic spectrometry. Furthermore, a description of the similarity principles related to electrical plasmas and the current-voltage characteristics of the most prominent types of discharges that are used for analytical applications is given.