Open AccessX‐ray spectromicroscopy with the scanning transmission X‐ray microscope at BESSY II
Author(s) -
Mitrea G.,
Thieme J.,
Guttmann P.,
Heim S.,
Gleber S.
Publication year - 2008
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049507047966
Subject(s) - chernozem , x ray , materials science , microscope , resolution (logic) , analytical chemistry (journal) , elemental analysis , spectroscopy , image resolution , transmission electron microscopy , optics , chemistry , nanotechnology , physics , soil water , chromatography , organic chemistry , quantum mechanics , environmental science , artificial intelligence , computer science , soil science
Using the scanning transmission X‐ray microscope at BESSY II, colloidal structures from a Chernozem soil have been studied with a spatial resolution around 60 nm and a spectral resolution of 1700 at the K ‐absorption edge of carbon. Elemental mapping has been used to determine the distribution of organic matter within the colloidal structures. Spectra have been extracted from image stacks to obtain information about the chemical state. For the analysis of the latter, principal component analysis and cluster analysis have been applied. It was possible, for example, to discriminate clay particles against organic components.