Phase and composition changes of titanite during laser ablation inductively coupled plasma mass spectrometry analysis

0358017 - ÚACH 2011 RIV US eng J - Článek v odborném periodiku
Fliegel, D. - Klementová, Mariana - Kosler, J.
Phase and composition changes of titanite during laser ablation inductively coupled plasma mass spectrometry analysis.
Analytical Chemistry. Roč. 82, č. 10 (2010), s. 4272-4277. ISSN 0003-2700. E-ISSN 1520-6882
Výzkumný záměr: CEZ:AV0Z40320502
Klíčová slova: LA-ICP-MS * elemental fractionation
Kód oboru RIV: CA - Anorganická chemie
Impakt faktor: 5.874, rok: 2010

Changes in phase and chemical composition of the mineral titanite (monoclinic CaTiSiO5) during laser ablation and plasma-aerosol interaction were investigated using electron diffraction and electron microbeam X-ray analysis with transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Laser ablation of titanite with a solid state 213 nm nanosecond laser generates a bimodal aerosol consisting of condensed nanoparticles and spherical micrometer-sized particles. The two types of particles produced by laser ablation are amorphous on the scale resolvable by the electron diffraction. The ratio of Ca-Si-Ti does not change significantly during laser ablation. Aerosol of titanite particles introduced into the ICP and collected after interaction with the plasma contains nanometer-sized particles of a condensate and spherical micrometer-sized particles with a molten surface.
Trvalý link: http://hdl.handle.net/11104/0196168