Solid Microanalysis

Rapid screening of major to trace elements in spatially resolved mode is often necessary. Bulk quantitative data are in these cases insufficient, as the important information is on the lateral and depth partitioning of componentes. The identification of interfaces, defects, segregation pockets, fractures, interstitial fillings are a few examples. Our expertise is in the solution of complex and unique analytical challenges, in the context of qualitative and semi-quantitative chemical analysis. Be it regarding state-of-the-art or energy materials, bio-compatible matrices, or forensic micro-samples, our decennial expertise offers full quality and statitical robustness.
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Laser Microanalysis permits to characterize a material rapidly and without much preparation. It also offers spatially-resolved capability. In Laser Ablation a micro-scale sampling is performed, and the laser-induced aerosol is characterized online, e.g. by means of plasma-source mass spectrometry.

Here, a plasma (ICP or inductively coupled plasma) is used for the atomization, excitation and ionization. The latter is necessary for mass spectrometry (MS), while the former is for optical emission spectrometry (OES). Unfortunately the ICP destroys important fundamental information related to the chemistry, binding and molecular structure. For this purpose a direct ionization is desirable. A short-wavelength laser can do this, plus offer nano-scale spatial resolution. 

Additionally, we have access to Scanning Electron Microscopy for imaging of nanostructured materials. The semi-quantitative analysis is complemented with the use of X-ray Fluorescence Spectrometry for Mappings. The technique is run is so-called wavelength-dispersive mode to achieve excellent resolution and detection power.