Publication details
Mapping of different structures on large area of garnite sample using laser-ablation based analytical techniques, an exploratory study
| Authors | |
|---|---|
| Year of publication | 2008 |
| Type | Article in Periodical |
| Magazine / Source | Spectrochimica Acta Part B |
| MU Faculty or unit | |
| Citation | |
| Field | Analytic chemistry |
| Keywords | LIBS; LA-ICP-MS; Geological samples; Spatially-resolved analysis; Compositional mapping |
| Description | Laser-ablation based analytical techniques represent a simple way for fast chemical analysis of different materials. In this work, an exploratory study of multi-element (Ca, Al, Fe, Mn) mappings of a granite sample surface was performed by laser induced breakdown spectroscopy (LIBS) and subsequently by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis. The operating parameters (e.g. pulse energy, ablation-crater size) were optimized for both techniques in order to achieve the appropriate conditions for two-dimensional high-resolution compositional mappings of mineral microstructures in large sample areas. The sample was scanned with 100 x 100 individual sample points to map an area of 20 x 20 mm2. The normalized signals were used for construct of contour plots which were colored according local distribution of the selected elements. The results of two laser-based methods were compared and found to be similar. |
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