Simplifying Sample Preparation for Soil Fertility Analysis by X-ray Fluorescence Spectrometry.

Sensors (Basel) · 2019 · PMC6928802 · PMID 31757037

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The XRF intensity and the SNR of K and Ca were slightly higher for loose soil than pellet samples, and both had a highly significant correlation (r > 0.9) between pellet and loose soil, indicating that the changes promoted by sample preparation were well standardized for all samples ( Figure 5 ).

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