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NRCan X-Ray Fluorescence (XRF) Analyzer Operator Certification Level 1 Practice Exam

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WDXRF is particularly well-suited for which type of samples?
Correct Answer:
Solids with high-resolution spectra, such as metals and ceramics.
Explanation:
The high spectral resolution of WDXRF, achieved through the crystal-based dispersion of X-rays, makes it ideal for separates of closely spaced wavelengths. This lets you resolve overlapping lines in complex solid spectra, which is common with metals and ceramics. Because solids can be prepared as dense, uniform pellets or fused beads, you get strong, well-defined signals that support accurate identification and quantification of multiple elements in a single sample. Gases and liquids in solution don’t provide that same dense, stable matrix, and their signals are harder to interpret with the sharp peak separation WDXRF delivers. So WDXRF is particularly well-suited for solids with high-resolution spectra, such as metals and ceramics.

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