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Quantitative EPR measurements of Mn2+ centers in minerals

Dyrek K., Babińska J., Bidzińska E., Wyszomirski P., Żabiński W.

Bulletin of the Polish Academy of Sciences. Chemistry

2002

Vol. 50, No.1

121-129

Two series of standards for quantitative EPR measurements of isolated and interacting Mn(2+) ions were obtained. The standards were applied for determination of the level of manganese impurities in sphalerites and illite clays. They were also used to check the effectiveness of doping of montmorillonites with Mn(2+) ions, which may create active centers for adsorption and catalysis.