West X ray Solutions Ltd.

Sheffield, United Kingdom

West X ray Solutions Ltd.

Sheffield, United Kingdom
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West M.,West X ray Solutions Ltd | Ellis A.T.,Oxford Instruments | Potts P.J.,Open University Milton Keynes | Streli C.,Vienna University of Technology | And 3 more authors.
Journal of Analytical Atomic Spectrometry | Year: 2011

This review offers the reader a wealth of information published between April 2010 and March 2011 concerning analytical endeavours using the range of conventional and hyphenated XRF techniques that encourage the user to ensure the potential for high spectral sensitivity and, where appropriate, spatial resolution is achieved. The development of advanced micro-beam set ups and new X-ray optics driven by third generation synchrotron based XRF techniques provide nano-imaging and the detection of nano-particles on single cells whilst TXRF coupled with GIXRF and GEXRF offer great potential for non-destructive investigations of thin layers on reflecting surfaces as well as depth profiling of implants. A new portable XRF system is described as an alternative for the traditionally applied K-X-ray fluorescence technology for in vivo measurements of lead in bone. Cryogenic cooling of heat sensitive biological samples is offered as a method to mitigate possible damage by the use of the more powerful μ-XRF technique. Other new preparation methods are also reviewed for the presentation and analysis of industrial, environmental and archaeological samples. One of the more unusual contributions available this year in the characterisation and use of industrial minerals showed that a semi-precious stone, amethyst, is more effective at shielding radiation than concrete. © 2011 The Royal Society of Chemistry.


West M.,West X ray Solutions Ltd. | Ellis A.T.,Oxford Instruments | Potts P.J.,Open University Milton Keynes | Streli C.,Vienna University of Technology | And 3 more authors.
Journal of Analytical Atomic Spectrometry | Year: 2010

This comprehensive review covers the latest published activities using XRF techniques. X-ray analytical equipment continues to be integrated with X-ray emission/diffraction/absorption techniques with the growing use of synchrotron radiation (SR) sources reflected in the literature. This integration trend was also prevalent in the development of small-scale laboratory equipment. X-ray detectors have advanced with pixellated systems, micro-calorimeter types and the now established silicon drift detectors being readily used by many authors. Matrix correction and calibration procedures have developed to accommodate instrumental developments related to micro-beam and bulk analysis. SR-based micro-techniques for two and three dimensional imaging were reported in research activities in applications for clinical, biological, environmental and cultural heritage studies as well as investigations of extraterrestrial material. Sample preparation developments continue, especially for TXRF. The extension of TXRF to measure the angle dependence fluorescence signal (GI-XRF, XSW) showed increased interest with several groups applying the technique to depth profiling and thin layer analysis of nano-particles. More applications were reported this year for the reversed technique (GE-XRF) combining micro-beam analysis with surface sensitivity. Geochemical mapping of the moon is reported after space flight measurements used the Sun as a radiation source. The literature reflects increasing quantitative analysis using portable XRF with a welcomed growth in acceptance by the Food and Drug authorities and other applied users. This year's Update offers dietary delights for those who enjoy crab meat and an insight into the eating habits of elephants. Advice for gardeners contemplating a green roof is reported along with analysis of the wood treatments used in the manufacture of Stradivari and Guarneri violins. XRF has also played its part in the development of self-cleaning fabrics. © 2010 The Royal Society of Chemistry.


West M.,West X ray Solutions Ltd
Glass Technology: European Journal of Glass Science and Technology Part A | Year: 2010

A practical guide for glass makers for the assessment of sands intended for both those with their own laboratory facilities and those sampling sand for subsequent assessment by an outsourced laboratory. Guidance is offered for a variety of glassmaking activities with the intention of providing a basis for the assessment of both the continued supply of established sands and the evaluation of new sources of silica sand. Part 1 addresses sampling and physical testing; including the determination of moisture, inspection for contamination and particle size analysis.


West M.,West X ray Solutions Ltd.
Glass Technology: European Journal of Glass Science and Technology Part A | Year: 2010

Part 2 of this guide provides the glass maker and analyst with practical advice and methodology for the chemical analysis of glass making sands. A number of instrumental and conventional wet chemistry techniques are described to satisfy a range of laboratory budgets.


West M.,West X ray Solutions Ltd
Glass Technology: European Journal of Glass Science and Technology Part A | Year: 2012

A practical guide for glass makers for the assessment of limestones and dolomites intended for both those with their own laboratory facilities and those sampling these carbonate materials for subsequent assessment by an outsourced laboratory. Guidance is offered for soda-lime-silica glass making with the intention of providing a basis for the assessment of both the continued supply of established limestones and dolomites and the evaluation of new sources of these carbonate materials. Part 1 addresses sampling for subsequent instrumental analysis such as XRF and ICP-OES, wet chemical analytical methods plus physical testing; including the determination of moisture, particle size analysis and inspection for contamination.

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