Burkhard Beckhoff

In X-ray fluorescence (XRF) analysis, physical traceability chains are used to quantify the absolute elemental content in a sample. The physical traceability chain relies on absolute knowledge of the X-ray spectral distribution used for the excitation of the instrument and is currently used at synchrotron radiation facilities. Here, we discuss the transfer of the physical traceability chain to laboratory-based X-ray sources, which are often polychromatic, with the view to generate wider application of quantitative XRF analysis.

This approach provides traceable and reliable quantitative elemental analysis of airborne particles for on-site environmental measurement with portable instrumentation.

The increasing demand for secondary electrochemical storage devices requires well characterized and working battery systems.