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Reheating of a Laser-Produced Plasma by a Second Pulse Laser

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Focused radiation of a Nd:YAG laser was used for ablation and production of free sample atoms from electrically conducting and nonconducting solids for analytical purposes. The microplasmas were generated in an argon buffer gas atmosphere at reduced pressure. In order to increase the intensities of analyte lines the microplasmas were reheated by a second Nd:YAG laser after the process of atomization was completed. It is demonstrated for aluminum and manganese in glass and steel samples and for magnesium and manganese in glass, copper, and aluminum that by internal standardization a common calibration curve can be obtained.

Keywords: Laser ablation; Optical emission spectrometry

Document Type: Research Article


Affiliations: Institut für Spektrochemie und angewandte Spektroskopie (ISAS), Bunsen-Kirchhoff-Str. 11, D-4600 Dortmund 1, Federal Republic of Germany

Publication date: November 1, 1991

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