The XRF spectroscopist is confronted with an almost infinite variety of samples. Liquid samples, from water to oil, require virtually no preparation. Many solid samples, if homogeneous, can be machined
to the proper shape and run directly. Others, such as refractories, ores, and biological materials, are too inhomogeneous, and must be pulverized or fused. Then the homogenized material can be dissolved for analysis as a liquid sample, pressed into pellet form, or cast as a glasslike solid.

SPEX SamplePrep manufactures disposable sample-handling accessories for powder and liquid XRF samples. Over the last twenty years, millions of powder samples for XRF have been pressed and
protected in the SPEX SamplePrep Spec-Cap, an aluminum cap for reinforcing pellets. Millions more liquid XRF samples have been run in SPEX SamplePrep X-Cells. These and the related products listed here will save you time and money, and assure you of reproducible, contamination-free results.