x-ray analysis Articles

  • X-ray slag monitoring

    According to market research published by the Freedonia Group in June 2006, global demand for cement is forecast to ‘grow to 4.7 per cent yearly through 2010’. While demand for Portland cement, which currently accounts for three-quarters of all cement sales worldwide, will be healthy, sales of blended cements are expected to climb at a faster pace. Similarly, the Slag Cement Association reports a ...


    By PANalytical

  • X-ray analysis of tin solders aids RoHS/WEEE compliance

    The hottest topic in the electrical and electronic industry for some time has been the introduction of several directives with the same implications, the Chinese Administrative Measure on the Control of Pollution Caused by Electronic Information Products, the European Union (EU) and Japanese RoHS and WEEE directives. These regulations restrict the presence of lead, and other elements, in ...


    By PANalytical

  • Precise fertilizer management - Grass analysis by X-ray fluorescence spectrometry

    A significant proportion of agricultural land in Europe is grass for livestock grazing. For example, in the UK as a whole, the combined area of grassland is around 6,997,000 hectares, nearly 38% of the total agricultural area [2]. In NorthernIreland, where clay soils and a temperate climate are particularly suitable for grass production, this percentage is much higher. Here about 95% of farmland ...


    By PANalytical

  • X-ray fluorescence analysis of additives and wear metals in used lubricating oils

    The determination of metal concentrations in lubricating oils is a very important diagnostic development. Such analysis dates back over 50 years, when one of its earliest uses was to assess engine oil from trains. Today, the analysis of both new and used lubricating oils, as well as the monitoring of trends in the metal concentrations and additives they contain, has become an essential control. ...


    By PANalytical

  • Material History — The Past of Materials Read with X-Ray

    By using fluorescent X-ray, we can read out the past information hidden in a material. This lecture explained X-ray fluorescent analysis using synchrotron radiation by referring to the identification for the Wakayama Poisoned Curry Murder Case, presumption of origins of ceramic ware, and research on plants that absorb and accumulate toxic arsenic from the environment, as ...


    By HORIBA Europe GmbH

  • High-Sensitivity Small-Size X-Ray Fluorescence Spectrometers

    Using a small X-ray tube, X-ray fluorescence analysis can achieve a high seneitivity through such means as appropriate geometrical arrangement, pretreatment and total reflection. This article outlines relevant X-ray element technologies, with a focus on high-sensitivity small-size X-ray fluorescence analysis that is being developed by a researchers' team including the author. This method permits ...


    By HORIBA Europe GmbH

  • Detecting Arsenic in Soil using Field Portable X-Ray Fluorescence

    Abstract Rapid, accurate on site determination of arsenic and heavy metal levels in soil is a powerful tool in efforts to rebuild and revitalize abandoned and under-utilized industrial properties. The EPA is actively spearheading initiatives to encourage assessment, clean-up and re-use of these industrial properties. In the case of heavy metals (often the eight RCRA metals Pb, As, Cd, ...

  • EPA Method 6200 and Field Portable X-ray Fluorescence Safety

    Overview: These training notes provide a brief introduction to x-ray fluorescence (XRF) analysis of soils. XRF has been used to characterize a broad range of materials for over twenty years. Recent advances in digital electronics and semi-conductor technology has yielded very portable XRF analyzers for field analysis of many sample types including soils. These notes will cover the following ...

  • Characterisation of molecular orientation in organic nanomaterials by X-ray Linear Dichroism Microscopy

    Soft X-ray spectromicroscopy is emerging as a powerful method for the chemical and structural analysis of nanostructured organic materials. X-ray spectromicroscopy combines the chemical and structural sensitivity of Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy with the high spatial resolution of X-ray microscopy. Linear Dichroism (LD), the anisotropic absorption of linearly ...


    By Inderscience Publishers

  • On the suitability of Portable X-Ray Fluorescence Analyzers for rapid screening of toxic

    Abstract X-Ray Fluorescence spectrometry (XRF) has been routinely used for alloy testing, determination of Pb in paint, and determination of Cd in plastic. However, its use to screen for toxic elements in food and medicinal products has been surprisingly limited to date. While XRF is less sensitive than atomic spectrometry methods such as ICP-AES and ICP-MS, it offers a number of significant ...


    By Northern ANI Solutions Ltd.

  • Non-cancer disease mortality and risk analysis among medical X-ray workers in China

    The non-cancer disease mortality (1950-1995) among 27 011 medical diagnostic X-ray workers was compared to that of 25 782 other medical specialists employed between 1950 and 1980 to provide evidence of human non-cancer disease death produced by protracted and fractionated exposure to ionising radiation and assess the resultant non-cancer disease death risk. The total non-cancer disease mortality ...


    By Inderscience Publishers

  • Characterisation of self–ordered porous anodic alumina by X–ray diffraction line profile analysis

    We report on the structural properties of porous anodic alumina (PAA) film produced by the anodisation technique under different annealing temperatures. X–ray diffraction (XRD) and photoluminescence (PL) measurements were performed. For the samples annealed in oxygen, decreases in the PL intensity and blueshift of the PL peak energy are observed with increasing annealing temperatures. The ...


    By Inderscience Publishers

  • Analysis of low-angle X-ray scattering profiles from irradiated blood samples

    The Transfusion-Associated Graft-Versus-Host Disease (TA-GVHD) is a serious potential complication of blood transfusions that is essentially prevented by blood product irradiation. In this study, scattering profiles from lyophilised and irradiated samples of plasma (PL) and formed elements (MC) were compared with non-irradiated ones. Fresh blood specimens were obtained from volunteers by vein ...


    By Inderscience Publishers

  • Screening Analysis of Hazardous Elements using X-ray fluorescence Analyzer — Analytical Technique in Compliance with RoHS Directive —

    Under recent circumstances where attention to the environment is required in every field, there is an increasing need for analysis of hazardous substances included in products such as electrical and electronic equipment, and automobiles, as triggered by the enforcement of the RoHS Directive of the European Union (EU). As part of this trend, the X-ray fluorescence analyzer (XRF) plays an important ...


    By HORIBA Europe GmbH

  • X-Ray Radiographic Investigation of Perchloroethylene Migration at the Livingston Derailment Site

    X-ray radiography of soil cores was used as the primary test method to determine the reasons for the permeation of perchloroethylene into apparently impermeable clay layers at a hazardous chemical spill site. X-ray powder diffractometry, scanning electron microscopy, and chemical analysis were also performed to characterize the materials and structures observed in the soil cores through X ...


    By ASTM International

  • Present Status and Future of Advanced Scientific Instrument using X-ray

    X-rays have attracted a lot of attention as a form of electromagnetic radiation that enable us to see objects through materials. And they are also a great contributor to clacification of physical phenomena. In the field of analysis, X-rays have drawn attention from their initial stage as a method of non-destructive simultaneous anaysis. Scientific measurement using X-rays is supported by three ...


    By HORIBA Europe GmbH

  • Inference on carbon atom arrangement in the turbostatic graphene layers in Tikak coal (India) by X-ray pair distribution function analysis

    This paper communicates the distribution of carbon atoms in a single poly-cyclic aromatic (PCA) layer (graphene) in Tikak coal from Assam, India. The pair distribution function (PDF) analysis performed indicates no evidence of any graphite like structure in this coal. The aromatic fraction is observed to be 74% with the aliphatic fraction correspondingly estimated to be 26% in this coal. The ...


    By Inderscience Publishers

  • Comparing Field Portable X-Ray Fluorescence (XRF) To Laboratory Analysis Of Heavy Metals In Soil

    ABSTRACT Field portable x-ray fluorescence (XRF) continues to gain acceptance as a complement to traditional laboratory testing of metal contaminated soil. The quality of data produced by field XRF varies with site conditions, soil composition, and sample preparation. Quality assurance protocols for the field method usually require that a number of field samples be split and sent to a ...

  • X-ray analysis of strain, composition and elastic energy in Ge islands on Si(001)

    X-ray diffraction techniques have been extensively employed to study several structural and chemical properties of self-assembled islands. In this review we discuss recent results on Ge islands grown on Si(001). Grazing incidence diffraction is used to map the strain distribution of Ge pyramids and domes. By tuning the X-ray energy near the Ge K edge – to perform anomalous diffraction ...


    By Inderscience Publishers

  • Wind Energy Production Estimates: Moving Beyond Time Averages

    No need to be a statistician to see that averages are often useful to compare different things. And yet, they often fall short as a true measure of performance. For instance, we use averages to compare the current weather against the climate normals or to get a sense of how our favorite sport team or player is doing. Team (player) statistics are a concise way of combining the scores from many ...


    By AWS Truepower, LLC

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