Portable X-ray fluorescence (pXRF) calibration for analysis of nutrient concentrations and trace element contaminants in fertilisers.

PLoS One · 2022 · PMC8751988 · PMID 35015770

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highly significantno p-value reported

In all cases of the 6 elements of interest (Co, Ni, As, Se, Cd and Pb) in 10 fertilisers (all charts not shown), the calibration of concentrations 0–1000 mg kg -1 is highly significant and linear.

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