A multielemental 3D laser ablationICP mass spectrometry mapping procedure was developed for high resolution depth information retrieval of surface layer phenomena. The procedure is based on laser drilling on a virtual grid on the surface, followed by extraction of depth maps along the z axis. Using a burst of 50 laser pulses at 1 Hz on each point of the grid, each laser shot was attributed to a specific voxel with a size of 90x90x0.15 um (glass matrix) and a content associated with 19 elemental concentrations (in ug/g). This approach is suitable for imaging with depth profiling (3D quantitative elemental imaging) of hard materials that can not be sliced (microtomed)Íž such as concrete matrix and can be used to study the leaching, weathering or other surface phenomena of such samples/atrefacts. As a proof of concept, the approach was successfully used to investigate the degradation mechanisms of a medieval, weathered glass artifact by colocalization analysis of selected crosssectional 2D elemental images in arbitrary planes of the volume images.
COBISS.SI-ID: 5202714