Spot-resolved analysis is required to characterize the heterogeneity of solid materials, which can be done with a number of techniques (Fig. 1). By means of Laser ablation, coupled with various detectors (Fig. 2), spatially resolved analysis in the range of µm is feasible in a rapid and handy way. No special sample preparation is needed, and results are available within minutes. The sample is directly ablated by the laser, and in LIBS (Laser-Induced Breakdown Spectroscopy) the generated plasma-radiation is spectrographically analyzed; the ablated material, transported by a carrier gas, is analyzed by ICP-MS (plasma mass spectrometry) or ICP-OES (plasma emission spectrometry) to achieve trace-level detection power and isotopic resolution.