pone.0262460.g004.tif (1.06 MB)
Comparison of some contaminants measured by ICP-MS versus pXRF in fertilisers used for independent validation.
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posted on 2022-01-11, 18:28 authored by Gifty E. Acquah, Javier Hernandez-Allica, Cathy L. Thomas, Sarah J. Dunham, Erick K. Towett, Lee B. Drake, Keith D. Shepherd, Steve P. McGrath, Stephan M. HaefelePlots also show how slope adjustment improved accuracy. The dashed line indicates the expected 1:1 ratio.
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measure several major90 seconds without78 – 010 – 0div >< p20 mg kg1000 mg kgtrace element contaminantsslope values rangingportable handheld x2 intentionally amended fertilisersfertilisers 97 – 099 ), especiallyportable xamended fertiliserstrace elementspotential contaminantsespecially considering99 ),values rangedtime consumingthroughput detectionsubsequently accumulatesecond setresults obtainedregression coefficientsray fluorescenceone instanceloose powderslocal regulationslocal blendingincreasing popularityhuman healthfertiliser adulterationeven accessibleanother problemalso obtained
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