XRF Articles

Forensic Applications of X-ray Fluorescence Microscopy

Published in Spectroscopy Europe, June 2009

Micro-XRF offers a fast, non-destructive and versatile analytical technique for forensic scientists.  Many crime scene samples are microscopic in nature, and the unique high spatial resolution of the XGT systems allows them to be characterised for elemental composition with ease.  In this article, analysis of typical forensic samples such as paint cross sections, glass particles and gun shot residues is discussed.

Click here to read this article.


Non-destructive Micro-analysis of Art and Museum Objects using Micro-XRF

Published in Archeometriai M?hely, Issue 3, 2008

The technique of micro X-ray fluorescence provides a fast, non-destructive analytical method for the analysis of elemental composition in a wide range of samples, with microscopic spatial resolution. Within archaeometry this technique is used to characterise a wide range of materials. A number of applications in this field are presented in this overview article, demonstrating the power of this technique for archaeologists and museum scientists.

Click here to read this article.


Forensics Applications of X-ray Fluorescence Spectroscopy in Combination with Advanced Light Source Sample Discovery

Published in Spectroscopy: Applications Notebook, March 2007

Forensic light sources and x-ray fluorescence(XRF) micro-analysis have been used for the characterization of gun shot residues(GSR). The forensic light sources allow components not visible to the naked eye to be located. With micro-XRF, microscopic particles can be individually analyzed for elemental composition, and large areas of a sample can be imaged for element distribution. The combination of the two techniques provides a powerful GSR analysis method for forensic scientists.

Click here to read this article.

X-Ray Fluorescence micro-analysis for environmental science

Published in Spectroscopy Europe, October / November 2006

X-Ray Fluorescence (XRF) has long been used by environmental scientists, but micro-XRF systems such as the XGT-5000 now provide increased capability, offering non-destructive, spatially resolved elemental micro-analysis. In this article analysis of individual microscopic particles (meteorites and airborne pollutants) and by-products from steel manufacture illustrates how micro-analysis is answering environmentally important questions.

Click here to read this article


New Dimensions in micro-XRF elemental analysis

Published in G.I.T. Laboratory Journal, Issue 4, 2005

Innovation in micro-XRF analysis has opened up the technique to many new research fields. The new benefits of high spatial resolution, non-destructive elemental imaging within pharmaceutical and biological applications are investigated.

Click here to read this article

Spectroscopic imaging for the life sciences

Published in Spectroscopy Europe Life Science supplement, August/September 2005

- more than just a pretty picture

It has long been a major goal of scientists to understand the many complex processes taking place within living organisms, ranging from microscopic species such as bacteria and viruses at one extreme, through to the human at the other. This article shows that micro-spectroscopic imaging is a key technique for biological research.

Click here to read this article.


Raman and EDXRF Chemical Imaging for Formulation Process Development and Quality Control

Published in Spectroscopy, June 2005

Compounds of magnesium and calcium are common components of pharmaceutical formulations. Spectroscopic imaging can provide a complete understanding of a formulation. This paper compares two spectral imaging techniques - energy dispersive X-ray fluorescence (EDXRF) microscopy and Raman microscopy.

Click here to read this article.

Biopharma Imaging and Analysis

Published in European Biopharmaceutical Review, Spring 2005

Advancing Towards a More Detailed Picture of Chemistry

There is a wealth of analytical and imaging techniques available for the measurement of biopharma samples, including AFM, SEM, fluorescence, NIR etc. However, what many of these fail to provide is true chemical/elemental composition information. This article looks at the application of Raman and XRF for micro-spectroscopic imaging applications.

Click here to read this article.

Micro-spectroscopy - shedding light on rock formation

Published in Spectroscopy Europe, June 2005

Whilst there are many imaging techniques available to a research scientist, the information which is provided is often only of a visual/topographical nature. What they fail to provide is true compositional (chemical/elemental) analysis of the materials. However, micro-spectroscopic techniques such as Raman or X-ray fluorescence (XRF) can fill this gap, allowing highly detailed images to be generated based upon the sample's material composition.

Click here to read this article.