Why choose XRF flux for X-ray fluorescence analysis?
Release time:
2023-11-22
Selecting the appropriate flux is crucial when performing X-ray fluorescence analysis. This article introduces XRF flux and why this flux is chosen for XRF analysis.
XRF flux is a chemical substance used in X-ray fluorescence spectrometry (XRF) to convert solid samples into liquids for analysis in the XRF instrument. The choice of flux significantly impacts the analysis results; therefore, selecting a suitable flux is crucial.
The XRF flux consists of 67% lithium tetraborate (Li2B4O7) and 33% boric acid (H3BO3), exhibiting excellent melting performance and stability in XRF analysis. This mixed flux can rapidly melt samples at lower temperatures, transforming them into a transparent glassy substance, facilitating X-ray penetration and detection.
XRF flux offers good solubility for most elements, including those in difficult-to-melt samples. It effectively converts elements within the sample into a solution, enabling the XRF instrument to accurately analyze the elemental content. The flux's solubility and stability enhance the accuracy and reproducibility of the analysis results.
XRF flux also exhibits low redox properties, preventing changes in sample oxides during melting. This is particularly important for elements prone to oxidation, where analysis results are often affected by oxides. Selecting an appropriate flux reduces the impact of oxides, improving the accuracy of the analysis results.
In summary, using XRF flux for X-ray fluorescence analysis is a wise choice. It possesses excellent melting performance and stability, rapidly melting samples and transforming them into a transparent glassy substance. It offers good solubility for most elements and has low redox properties, improving the accuracy and reproducibility of the analysis results.
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