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Related Experiment Video

Updated: Jun 16, 2026

Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

Published on: January 10, 2019

X-ray spectromicroscopy in soil and environmental sciences.

J Thieme¹, J Sedlmair, S-C Gleber

¹Brookhaven National Laboratory, NSLS-II Project, Upton, NY 11973, USA. jthieme@bnl.gov

Journal of Synchrotron Radiation

|February 17, 2010

Summary

This summary is machine-generated.

X-ray microscopy images nanoscale particles with high resolution. This technique visualizes soil particle morphology and 3D structure, combining chemical and physical properties for detailed analysis.

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Biological Samples Preparation for Speciation at Cryogenic Temperature using High-Resolution X-Ray Absorption Spectroscopy

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Published on: May 27, 2022

Area of Science:

Materials Science
Environmental Science
Analytical Chemistry

Background:

X-ray microscopy offers direct imaging of nanoscale particles with sub-micrometer resolution.
It can be coupled with high spectral resolution for advanced spectromicroscopy.
Transmission X-ray microscopy (TXM) and scanning transmission X-ray microscopy (STXM) are key techniques.

Purpose of the Study:

To detail the principles and applications of X-ray microscopy, specifically TXM and STXM.
To demonstrate the visualization of soil and sediment particle morphology.
To showcase the combined morphological and chemical analysis of soil samples using STXM and X-ray fluorescence.

Main Methods:

Utilizing transmission X-ray microscopy (TXM) for high-resolution imaging of particle morphology.
Employing scanning transmission X-ray microscopy (STXM) for spectromicroscopy and chemical analysis.
Applying cryo-tomography with X-ray microscopy for 3D structural elucidation of humic substance clusters.
Using X-ray fluorescence (XRF) for elemental distribution and binding state analysis.

Main Results:

TXM successfully visualized the morphology of clusters and particles in soil and sediment samples.
Cryo-tomography based on X-ray microscopy provided 3D structural information of humic substance clusters.
STXM analysis enabled the integration of morphology and chemistry within soil samples.
X-ray fluorescence demonstrated applicability for trace-level elemental analysis.

Conclusions:

X-ray microscopy techniques, including TXM and STXM, are powerful tools for characterizing nanoscale materials.
These methods allow for detailed morphological and chemical analysis of complex environmental samples like soil.
The combination of imaging and spectroscopy provides comprehensive insights into sample composition and structure.