Fe Mössbauer spectroscopy was used to study the uptake and distribution of iron in the root of cucumber plants grown in iron-deficient modified Hoagland nutrient solution and put into iron-containing solution with 10 μM Fe citrate enriched with Fe (90%) only before harvesting. The Mössbauer spectra of the frozen roots exhibited two Fe components with typical average Mössbauer parameters of δ=0....

Using the Mandelstam-Tamm method we derive time-energy uncertainty relations for neutrino oscillations. We demonstrate that the small energy uncertainty of antineutrinos in a recently considered experiment with recoilless resonant (Mössbauer) production and absorption of tritium antineutrinos is in conflict with the energy uncertainty which, according to the time-energy uncertainty relation, is...

Introduction: Mössbauer spectrometers will be used on martian landers and rovers to identify and quantify relative amounts of Fe-bearing minerals, as well as to determine their Fe/Fe ratios, allowing more realistic modeling of martian mineralogy and evolution. However, derivation of mineral modes, Fe/Fe ratios, and phase identification via Mössbauer spectroscopy (MS) does have limitations. We d...

The application of Mössbauer spectroscopy for the determination of the valance states of iron is obvious. However, in case of iron in tissues, this method often fails due to the low concentration of Mössbauer probe. On the other hand, the X-ray Absorption Near Edge Spectroscopy (XANES) requires a smaller amount of iron, but the acquired information on iron oxidation states is not straightforwar...

Iron-57 Mössbauer spectra have been recorded from three minerals containing both iron and antimony. Schafarzikite of composition FeSb2O4 contains Fe. The Sb Mössbauer spectrum shows only the presence of Sb. The Fe Mössbauer spectrum corresponds with that recorded from a material of identical composition synthesised by a solid state reaction during the course of this work. Apuanite of formulatio...

2014 The importance of Mössbauer Spectroscopy in heterogeneous catalysis research is increasing, since more and more catalysts are complex finely dispersed solids, sufficient characterization cannot be achieved easily with more conventional methods. After summarizing the special features of Mössbauer Spectroscopy of solid catalysts, we show and discuss some examples of its use in identifying ca...