Characterization of iron oxides in soil clays by Mossbauer spectroscopy
. X-ray diffractometry, and selected chemical techniques.
Coey, "Mossbauer spectroscopy
of silicate minerals," in Mossbauer Spectroscopy
Applied to Inorganic Chemistry, G.
Annealed alloy samples with 0 and 0.1% carbon content have also been investigated by Mossbauer spectroscopy
. Results obtained from room temperature (RT) and 80 K measurements are shown in Figure 9.
They then performed a similar Mossbauer spectroscopy
experiment  with two absorbers with a substantially different isomer shift to be able to correct the Mossbauer data for vibrations in the rotor system at various rotational frequencies.
For to characterize the acetates (i.e., FeAc and FeAc-FD), we used Mossbauer Spectroscopy
, X-Ray Diffraction (XRD), Thermogravimetric Analysis/Differential Scanning Calorimetry (TGA-DSC) and Scanning Electron Microscopy (SEM).
To avoid oxidation of particles during their characterization and to better study the Fe oxidation state of the particles in the solution, they were studied by Mossbauer spectroscopy
and the results are shown in Figure 3(a).
. Mossbauer spectra of 9.3 wt% Fe_Nitrate and 10.7 wt% Fe_Citrate recorded above 200 K showed a broadened and asymmetric doublet independent of the used precursor.
In this study, standard samples of ferrous fumarate and gluconate were measured using Mossbauer spectroscopy
. The iron valence state and dietary supplements of a Dynabi tablet containing both ferrous fumarate and ferrous gluconate were selected and measured.
"Spectroscopic characterization of iron ores formed in different geological environments using FTIR, XPS, Mossbauer spectroscopy
and thermoanalyses", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol.
is a highly accurate technique relying on a gamma ray source to determine with extreme precision concentrations of certain types of nuclei within solids in various quantum spin states and valences as well to investigate the structures of biomolecules like proteins.
. Mossbauer absorption spectra measured at room temperature for [Mg.sub.0.5][Zn.sub.0.5][Fe.sub.2][O.sub.4] powders annealed at different temperatures are shown in Figure 5.
Raman spectroscopy and Mossbauer spectroscopy
have been successfully used to characterize the different oxide phases formed on iron based alloys [23-26].
and X-ray diffraction studies of ball-milling induced transformations of a near-equiatomic fev sigma fase: Influence of oxigen.
is a very useful tool for investigating magnetic materials because [sup.57]Fe is the most convenient nucleus for Mossbauer measurements.
In this paper we study the mineralogical characterization of the clay fraction of two samples of agricultural soils from Vertisols from the Valle de San Lorenzo, Piura Region, using analytical techniques such as energy dispersion X-ray fluorescence (XRF), X-ray difractometry (XRD) and transmission Mossbauer spectroscopy