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XRF Sample Preparation Fusion
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XRF sample preparation fusion is the gold standard in preparing solid samples for high-precision elemental analysis using X-ray fluorescence (XRF). Whether you’re working with geological samples, polymers, cement, or metals, ensuring the right fusion process is in place is essential for delivering accurate, repeatable results.
While XRF is often praised for requiring minimal sample prep compared to other techniques, XRF sample preparation fusion adds another level of accuracy, consistency, and reliability—especially when the quality of the analysis truly matters.
What is XRF Sample Preparation Fusion?
At its core, XRF sample preparation fusion involves heating a finely ground, fully oxidised sample mixed with a chemical flux (typically lithium borate) to extremely high temperatures. The molten mixture is then poured into a mould to cool into a smooth, homogeneous glass disk—ideal for XRF analysis.
The technique removes any mineralogical or particle size effects that could skew results in pressed powders. The outcome is a transparent, stable sample with a uniform matrix—perfect for precise XRF measurement.
This method also lends itself to ICP and AA techniques when the fused material is dissolved into solution, offering flexibility for multi-technique labs.
Why Fusion Over Other Methods?
Compared with pressed pellets or loose powders, XRF sample preparation fusion offers:
Outstanding repeatability and precision
Compatibility with a wide range of sample types (e.g., polymers, slags, ores, cement, and metals)
Simple, safe, and automated workflows
Minimal operator training
Clean results, free from mineralogical interference
Easy calibration and matrix correction
It’s a trusted technique in high-throughput labs where consistency and speed are vital.
The Crucial Role of Crucibles
A vital element of the fusion process is the crucible. The extreme temperatures and reactive nature of flux demand vessels that are both chemically inert and thermally stable. That’s why platinum, often alloyed with gold or rhodium, is the industry’s first choice.
Explore our platinum crucibles tailored for fusion applications.
At Birmingham Metal Company Ltd., we’ve been manufacturing high-purity, high-performance crucibles for over 35 years. Our products are trusted by labs worldwide and manufactured to ISO 9001 standards for outstanding quality control.
Unsure which crucible you need? Read: Choosing the Right Crucible for Accurate Analysis
Trusted by Global Laboratories
We’re not just suppliers—we’re experts. Our team understands the real-world challenges of XRF sample preparation fusion, from corrosive flux chemistries to high-throughput workflows. Whether you need custom crucibles or standard labware, we deliver rapid turnaround, technical support, and a product that lasts.
Contact us today to discuss your lab’s requirements.
Supporting a Wide Range of Industries
XRF sample preparation fusion is essential across multiple sectors:
Cement and construction materials
Mining and geological testing
Metallurgy and alloys
Polymers and plastics
Environmental and agricultural testing
Whatever your industry, we can provide the right crucibles and expert advice to improve your fusion outcomes.
Ready to optimise your sample prep? Send us an enquiry now
