Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 385, Issue 2, Pages 287-294Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-005-0287-z
Keywords
laser-induced breakdown spectroscopy (LIBS); aluminium alloy; precipitates; spectrochemical microanalysis; solid sampling; emission scaling
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The analytical performance of femtosecond laser-induced breakdown spectroscopy (LIBS) for elemental microanalysis of aluminium alloys and for mapping precipitate distribution on the sample surface has been studied in detail. A Ti-sapphire laser system producing pulses of 130 fs at 800 nm was used to generate the laser-induced plasma. Multi-element microanalysis of commercially available aluminium alloys was performed in air at atmospheric pressure. Crater characteristics such as diameter and crater morphology were characterized by optical and scanning-electron microscopy. Scaling of plasma emission and limit of detection as a function of laser pulse energy was also investigated. Current experimental results are presented and are compared with previous nanosecond microLIBS measurements.
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