OREAS Pressed Pellet CRMs: Precision, Durability and Performance
Pressed pellet certified reference materials (CRMs) offer a convenient and efficient solution for in-field and laboratory applications for real-time assay results using portable XRF and LIBs analyzers. But, not all pellets are created equal, conventional pressed pellets often suffer from issues such as limited durability, surface contamination, and inconsistent composition due to binder use. OREAS pressed pellet CRMs deliver superior homogeneity, durability, and analytical accuracy.
Unrivalled Homogeneity for Accurate Results
One of the most significant challenges in pressed pellet CRMs is achieving and maintaining homogeneity. Variations in particle size, mineralogy, and element distribution can cause inconsistencies that affect analytical precision. OREAS pressed pellets are manufactured using proprietary techniques to ensure exceptional homogeneity, allowing for highly reproducible results across multiple analyses. This meticulous attention to consistency makes them ideal for both exploration and grade control applications, ensuring geologists and chemists can trust their data with confidence.
Superior Durability and Robust Design
Traditional pressed pellets are prone to cracking, chipping, and degradation, particularly in harsh field conditions. OREAS pressed pellet CRMs feature a high-density finish without added binders, resulting in a structurally superior product that withstands tough handling. Their rugged design prevents ruptures and powder spills for safer handling in the field and laboratory settings.
Optimised Sensitivity for Light Element Detection
Many conventional pressed pellets require a film covering to hold the material together, which can interfere with spectrometer readings, particularly for light elements. OREAS pressed pellets eliminate this issue with a binder-free, high-density finish, removing the need for a film covering. This optimisation enhances sensitivity, ensuring more reliable detection of light elements and delivering more accurate spectrometer readings.
Thicker Pellets for Improved Analytical Performance
Thickness is a key factor in pressed pellet performance. For XRF analysis, a pressed pellet must meet the ‘infinite thickness’ requirement to ensure accurate element detection, as insufficient thickness can lead to signal attenuation, substrate interference and inconsistent results. OREAS pressed pellets are designed to provide ‘infinite thickness,’ optimising signal readings and enhancing analytical precision. This makes them compatible with spectroscopic techniques and instruments, reducing the risk of measurement variability due to sample thickness limitations.
Protection from Contamination and Environmental Exposure
Environmental factors such as moisture, dust, and oxidation can compromise the integrity of pressed pellet CRMs over time. OREAS pellets come individually housed in screw-top capsules, minimising contamination and transit damage while preserving the sample face. This protective packaging reduces atmospheric exposure, ensuring consistent and reliable results over extended periods.
Field-Ready Storage for Maximum Convenience
For geologists and field analysts, durability and portability are essential. OREAS pressed pellet CRMs are available in rugged, dustproof, shockproof and water-resistant cases, providing maximum protection in all field conditions. These cases safeguard the integrity of the CRMs, allowing for accurate field analysis in even the most challenging environments.
Customisable Kits for Exploration and Grade Control
To cater to diverse analytical needs, OREAS offers expertly curated pressed pellet kits for exploration and grade control applications. Users can select from a range of commodity-specific kits or customise their own from the full suite of OREAS CRMs. Each kit is designed to align with host rock matrices and target elements, ensuring optimal performance for any geological setting.
