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

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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.
Related projects:	Physical and chemical properties of advanced materials and structures Study and application of plasma chemical reactions in non-isothermic low temperature plasma and its interaction with solid surface Study of interactions of cooling media at high temperatures with structural materials of heat exchangers by plasma spectrometry methods