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[July 2008]
High Quality Pellets for XRF Analysis
Semi-automatic pellet presses are said to be indispensable tools when large quantities of sample materials for XRF analysis have to be pelletised. The new PP 40 Pellet Press from Retsch GmbH (Haan, Germany) is controlled with one single button and a graphic display which makes operation very easy and comfortable, says the company.
The pressure force can be regulated in the range of 50kN to 40kN. Besides controlling the pressure force, it is also possible to determine build-up, maintenance and release of force during pressing. This reduces the inner tensions of the sample and ensures that even difficult materials are pressed perfectly. Retsch adds that 32 parameter combinations can be stored and that the PP 40 can be equipped with dies for different pellet sizes:
• Steel rings (inner diameter 35mm or 32mm)
• Aluminium cups (outer diameter 40mm)The press provides stable pellets with a smooth and uniform surface which allows for reliable and meaningful analysis results.
The PP 40 was designed for combined use with the RS 200 Vibratory Disc Mill which produces homogeneous powders below 100µm within seconds. Together, these instruments substantially improve the efficiency of sample preparation for XRF analysis.
www.retsch.com
ENDS