Mössbauer spectroscopy: epoch-making biological and chemical applications

0474735 - ÚACH 2018 RIV US eng J - Journal Article
Lančok, Adriana - Volfová, Lenka
Mössbauer spectroscopy: epoch-making biological and chemical applications.
Pure and Applied Chemistry. Roč. 89, č. 4 (2017), s. 461-470. ISSN 0033-4545. E-ISSN 1365-3075.
[International Conference Solid State Chemistry 2016 /12./. Prague, 18.09.2016-23.09.2016]
R&D Projects: GA MŠMT(CZ) LO1409; GA MŠMT(CZ) LM2015088
Grant - others:FUNBIO(XE) CZ.2.16/3.1.00/21568
Institutional support: RVO:61388980 ; RVO:68378271
Keywords : biological tissue * boron chemistry * Fe2+ and Fe3+ * Mössbauer spectrometry * vivianite
OECD category: Inorganic and nuclear chemistry; Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect) (FZU-D)
Impact factor: 5.294, year: 2017

Iron is one of the most abundant elements on Earth and also in Mössbauer research. The present study is a summary of our search for iron compounds that now play an important role in the development of specific areas of inorganic chemistry of iron, biological applications and pigment for various types of artworks. The different catalytic or biologically active systems were studied in particular of the Mössbauer spectrometry, including temperature dependencies of the biological tissue and the synthetic vivianite. Mössbauer spectrometry was chosen as the main investigation tool for identification of Fe2+ and Fe3+. We are identified divalent and trivalent iron in the samples and we found their mutual ratio. The iron sandwich complexes exhibit a linear dependence between quadrupole splitting and number of methyl groups. We also determined temperature of transformation of divalent to trivalent iron for vivianite sample that are used in painting. The transformation temperature is about 90 degrees C.
Permanent Link: http://hdl.handle.net/11104/0271707