Sample analysis

Process automatization including pulverizing, dosing and pelletizing require an efficient cleaning of all components. HERZOG offers different cleaning options including pressed air, wet cleaning, sand cleaning, and blind samples. We use XRF analysis to minimize potential contamination of sample material. This allows an optimal tuning of cleaning parameters according to the specific requirements of each customer. 

A representative surface of the sample is essential for obtaining reliable analysis results. Pelletizing of material into rings may lead to material decomposition or particle clustering potentially interfering with correct analysis. HERZOG uses various XRF methods for avoiding heterogeneity within the pellets.

The results of sample preparation are influenced by various effects like, e.g., particle size effects, matrix effects, particle orientation effects, surface roughness, or fusion bead shape. During the sample preparation process the following parameters are of particular interest:

• Grinding time and grinding vessel
• Grinding aids
• Pressure level and time
• Timing of fusion
• Crucible handling during fusion
• Type of flux and sample for the fusion process

HERZOG provide a facility to examine the influence of these effects on the outcome of sample analysis to setup the optimal preparation parameters according to the needs of each customer.

Laboratory automation should obtain the optimum balance between high sample throughput and best analysis quality. During the process of automation planning we do not only rely on our outstanding expertise but also on tools like, e.g., simulation software.

Before delivery, the performance of all automation components is extensively tested by using test procedures like XRF analysis and grain size analysis. All parameters are perfectly adjusted and coordinated to obtain best possible analysis results. This process is based on a close cooperation with our customers.

Please do not hesitate to get in touch with us if you would like to test the your own sample material.