Confocal X-ray Fluorescence Imaging and XRF Tomography for Three-Dimensional Trace Element Microanalysis

Medical Applications of X-ray Fluorescence for Trace Element Research

Techniques for estimation of element levels directly in humans (non-invasive in vivo) or in samples (in vitro) from humans are reviewed. Toxic, nonessential, trace elements may cause temporary or permanent damage to various organs and tissues in humans. There is thus a need to control the concentrations. Knowledge of the relations between toxic effects and element concentration may be extracted...

Subsurface Particle Analysis using X-ray Computed Tomography and Confocal X- ray Fluorescence

Quantitative analysis of trace palladium contamination in solution using electrochemical X-ray fluorescence (EC-XRF).

The application of electrochemical X-ray fluorescence (EC-XRF), for the detection of palladium (Pd) contamination in a range of solutions containing electrochemically active compounds, present in excess and relevant to the pharmaceutical and food industries, is reported. In EC-XRF, EC is used to electrochemically pre-concentrate metal on an electrode under forced convection conditions, whilst X...

Coherent three-dimensional X-ray cryo-imaging

The combination of cryogenic sample temperatures with three-dimensional coherent diffractive imaging for the case of whole frozen-hydrated cells is discussed in the light of theoretical predictions of the achievable resolution.

X-ray computed tomography of packed bed chromatography columns for three dimensional imaging and analysis.

Physical characteristics critical to chromatography including geometric porosity and tortuosity within the packed column were analysed based upon three dimensional reconstructions of bed structure in-situ. Image acquisition was performed using two X-ray computed tomography systems, with optimisation of column imaging performed for each sample in order to produce three dimensional representation...