Preparing samples for XRF (X-ray fluorescence) analysis is a critical step to ensure accurate and reproducible results.
There are several methods used for sample preparation, each tailored to different types of samples and conditions.
4 Key Methods Explained
1. No Preparation (for Powder Samples)
For powder samples, no preparation is often required.
This method is straightforward and minimizes the risk of contamination.
2. Pressed Pellets
Pressed pellets involve compacting the sample into a solid form using pressure.
This method is commonly used for solid samples and requires a binder to hold the particles together.
3. Fused Beads
Fused beads involve melting the sample with a flux and forming it into a bead.
This method ensures homogeneity and is particularly useful for complex samples.
4. Additional Steps
Additional steps such as reducing particle size may be necessary depending on the sample's initial condition.
These steps can include using a jaw crusher for homogenization or automatic weighing and dosing equipment for high throughput analysis.
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