Publication details

LASER ABLATION INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY - TOOL FOR ELEMENTAL MAPPING

Authors

VACULOVIČ Tomáš WARCHILOVÁ Tereza OTRUBA Vítězslav KANICKÝ Viktor

Year of publication 2009
Type Conference abstract
MU Faculty or unit

Faculty of Science

Citation
Description Laser ablation (LA) can be used as a local-sampling method for inductively coupled plasma mass spectrometry (ICP-MS). This connection allows multielemental mapping with high lateral resolution. Utilization of LA-ICP-MS for lateral elemental mapping of corroded layers is reported in this work. Molten fluoride salts (LiF-NaF) are examined as a cooling media for molten salt and high temperature reactors, nowadays. Molten fluoride salts represent a considerably invasive and corrosive media for the material of piping and other circuit parts. Structural materials of heat exchangers may be attacked at temperatures of about 700 C and the melt-alloy interaction provokes microstructure and composition changes of contact surface. Resulting corroded layers was studied by means of LA-ICP-MS. Laser spot size of 12 mikrons was used for lateral mapping. For quantification purposes was used a sum normalization calibration procedure.
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