Laser induced breakdown spectrometry with an échelle spectrometer and intensified charge coupled device detection

• Published in: Spectrochimica acta. Part B: Atomic spectroscopy Vol. 53; no. 13; pp. 1815 - 1825
• Main Authors: Bauer, H.E., Leis, F., Niemax, K.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 28.11.1998; Amsterdam Elsevier Science; New York, NY
• Subjects: Analytical chemistry; Chemistry; Exact sciences and technology; ICCD detection; Laser ablation; LIBS; Microanalysis; Spectrometric and optical methods; Échelle-spectrometer; Laser ablation; ICCD detection; LIBS; Microanalysis; Échelle-spectrometer; Trace analysis; Chemical analysis; Performance characteristic; Charge coupled device; Inorganic element; Optimization; Operating conditions; Equipment specifications; Emission spectrometry; Multicomponent analysis; Pulsed laser; Laser ablation technique; Laser produced plasma
• ISSN: 0584-8547; 1873-3565
• DOI: 10.1016/S0584-8547(98)00234-1

The combination of an échelle spectrometer with a time-gated intensified charge coupled device (ICCD) camera for simultaneous measurements of spectral lines in wide ranges of the optical spectrum is presented. The analytical and diagnostic power of the échelle-ICCD combination is demonstrated by laser induced breakdown spectrometry (LIBS) of solid samples. The apparatus allows complete elemental analysis by single shots as the spectral lines of major, minor and trace constituents are measured simultaneously. The analytical precision and detection limits in single shot measurements are improved by the evaluation of many lines for each element. Further, plasma parameters, such as the plasma temperatures, can be determined from the same spectrum and, if necessary, used for normalization of the analyte line intensities.