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Measurement of Small Concentrations of Manganese in Lime (CaO) Using Electron Spin Resonance
Author(s) -
Biasi Ronaldo S.,
Grillo Maria L. N.
Publication year - 2003
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2003.tb03304.x
Subject(s) - electron paramagnetic resonance , manganese , line width , analytical chemistry (journal) , lime , line (geometry) , resonance (particle physics) , doping , materials science , chemistry , nuclear magnetic resonance , atomic physics , physics , metallurgy , optics , geometry , mathematics , optoelectronics , chromatography
Electron spin resonance (ESR) line widths of Mn 2+ in lime were measured in samples doped with small concentrations (up to 0.4 mol%) of Mn. The line width was found to change in a predictable way with Mn concentration, according to the theoretical equation Δ H pp = 0.23 + 240 f (1 − f ) 42 , where Δ H pp is the line width in milliteslas and f is the Mn concentration in mole percent. The experimental results show that the technique can be used to measure, rapidly and nondestructively, small concentrations of Mn in commercial CaO.