6533b824fe1ef96bd12813a5

RESEARCH PRODUCT

Iron Determination in Fertilizers by Inductively Coupled Plasma Atomic Emission Spectrometry: Study of Spectral and Interelement Effects at Different Wavelengths

Rose MatilainenJouni Tummavuori

subject

PharmacologyChemistryAnalytical chemistryInterference (wave propagation)Analytical ChemistryWavelengthInductively coupled plasma atomic emission spectroscopyEnvironmental ChemistryInductively coupled plasmaOptical emission spectrometryAgronomy and Crop ScienceChemical compositionFood ScienceAtomic emission spectrometry

description

Abstract Four analytical wavelengths of iron (238.204, 239.562, 259.940, and 240.488 nm) were tested for determination of Fe in fertilizers by inductively cou pled plasma atomic emission spectroscopy (ICP AES). Variations in measurements were caused by the changing interference pattern at different wave lengths evaluated by multiple linear regression. Thus, results obtained with different wavelengths are not comparable. Ca, P, and K were typical ele ments causing interference in almost all examined Fe wavelengths. Wavelength Fe II 238.204 nm is the best wavelength for determination of Fe in fertiliz ers by ICP-AES. Method accuracy is ± 8% at the ex amined Fe levels in fertilizers.

yearjournalcountryeditionlanguage
1996-01-01Journal of AOAC INTERNATIONAL
https://doi.org/10.1093/jaoac/79.1.22