A pressed pellet is a solid tablet produced from powdered material under high pressure, which serves as an analytical sample. Pressed samples are primarily used for X-ray fluorescence analysis (XRF), but also for numerous applications of X-ray diffraction (XRD).

To produce a pressed sample, the sample material is first ground to a defined particle size and then compacted under high pressure. The result is a stable, homogeneous, and reproducible sample surface that provides optimal conditions for precise analytical investigations.

The quality of a pressed sample significantly influences the accuracy of analytical results. Factors such as particle size distribution, homogeneity, pressing pressure, and surface texture play a decisive role in both XRF and XRD analyses.

Pressed samples are suitable for numerous materials, including cements, ores, slags, minerals, and other industrial raw materials.

HERZOG offers a broad portfolio of automated and manual laboratory presses for the production of high-quality pressed pellets. The systems ensure reproducible pressing conditions and produce samples with optimal properties for XRF and XRD analyses. In this way, they contribute to reducing measurement uncertainty and ensuring consistently high analysis quality.