Download or read book Tube based Field portable X ray Fluorescence FPXRF as a Qualitative Screening Tool for Resource Conservation and Recovery Act RCRA Metals in Children s Products and Comparison to Total Metals Analyses to Predict Hazardous Waste Metals Toxicity Characteristic written by James M. Kohlbach and published by . This book was released on 2009 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This research was performed to assess the efficacy of tube-based field portable x-ray fluorescence (FPXRF) devices to evaluate RCRA heavy metal concentrations in children's products and determine potential hazardous waste toxicity characteristics by comparative analysis to inductively coupled plasma (ICP) yields per SW6010B. Sample sets consisting of wood, plastic, rubber, bulk, plated/coated, and metal matrices were purchased, size-reduced as necessary and directly analyzed three-times for 120 seconds each via FPXRF operated in the Consumer Goods/Test All mode. Subsequently, the same samples were prepared in accordance to SW3050B and analyzed via ICP at an accredited contract laboratory. Side-by-side results analysis indicates that FPXRF consistently exhibits positive bias compared to standard laboratory methods in the majority of matrices due to XRFs abilities to estimate total metallic analyte concentrations versus extract-labile substances only. Instances in which FPXRFs positive bias was absent were believed attributed to suboptimal sample homogeneity or limited sample area compared to total sample volume of SW3050B extraction. Though FPXRFs overestimation of metallic analyte concentrations does not directly correlate to SW6010B ICP yields without application of correction factors, it does provide a better indication of total versus liberated analyte presence."--Abstract.
Download or read book Rapid Screening of Metals Using Portable High resolution X ray Fluorescence Spectrometers written by Alan Dole Hewitt and published by . This book was released on 1995 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Portable X ray Fluorescence FPXRF written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Portable X ray Fluorescence Spectrometry written by Philip J Potts and published by Royal Society of Chemistry. This book was released on 2008-07-29 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Portable X-ray fluorescence (PXRF) instrumentation has some unique analytical capabilities for the in situ analysis of samples in the field. These capabilities have been extended in recent years by the continuing development of solid state detectors, surface mounted electronics, digital signal processing technology, Li-ion batteries combined with a choice of rugged sealed radioisotope sources or miniature X-ray tubes that provide lightweight hand-held devices. As well as opening up new applications, in situ measurements by PXRF, where the instrument is placed in direct contact with the object to be analysed, involve the complete integration of sampling and analysis. Careful interpretation of results is therefore required, particularly when the analysis is used to estimate the bulk composition of a sample. In this monograph, an overview is given of instrumentation, analytical capabilities, and limitations in the interpretation of results, sampling considerations and applications where PXRF offers substantial advantages over conventional analytical techniques. The aim is to give the reader an insight into the capabilities of the technique and to demonstrate the contribution it can make to a range of areas of contemporary scientific interest. Chapters are written by internationally recognised scientists with practical experience of in situ analysis using portable X-ray fluorescence and demonstrates the wide range of applications for the technique. The topics covered are illustrated with diagrams and photographs where appropriate and each chapter includes supporting references to enable the reader to gain a greater understanding of a particular application. Topics include: -analytical capabilities -instrumentation -quantification -correction procedures -sampling considerations -future developments Applications include: -the assessment of contaminated land -surfaces -coatings and paints -workplace monitoring -metal & alloy sorting -geochemical prospecting -archaeological investigations -museum samples & works of art -extraterrestrial analysis The work is aimed at scientists who have some knowledge of analytical techniques and/or the applications covered, but are not fully familiar with the capabilities of PXRF. It offers a general introduction to the technique and its applications rather than a research monograph. As such, it is aimed at analytical scientists, environmental and geological scientists, industrial hygienists, industrial and plant scientists, archaeometrists and museum researchers, research scientists and research students with projects in the applications covered. Undergraduate students studying associated degree courses will also benefit from the work.
Download or read book Development of Energy dispersive X ray Fluorescence as a Mobile Analysis Method for Hazardous Metals in Transuranic Waste written by and published by . This book was released on 1998 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy-dispersive X-ray fluorescence (EDXRF) is a widely applied technique for both laboratory and field-based characterization of metals in complex matrices. Here an EDXRF method is described for analysis of 13 hazardous (RCRA) metals in Portland cement, a typical matrix for transuranic (TRU) waste from US Department of Energy (DOE) sites. Samples are analyzed as homogeneous powders prepared by simple drying, mixing, and milling. Analyses are performed using a commercial EDXRF spectrometer equipped with an X-ray tube, a high-resolution Si(Li) detector, and fundamental parameters software for data reduction. The spectrometer is rugged and suitable for use in either mobile or fixed-based laboratories. Standardization is accomplished using fundamental parameters techniques for several prepared standards which bracket the expected range in metal concentrations, and typical standardization uncertainties are
Download or read book Field Portable XRay Fluorescence Analyzer written by and published by DIANE Publishing. This book was released on with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Portable X ray Fluorescence Spectrometry written by P. J. Potts and published by Royal Society of Chemistry. This book was released on 2008 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together the knowledge and expertise of internationally recognised scientists with practical experience of in situ analysis using portable X-ray fluorescence technology.
Download or read book Advances in Portable X ray Fluorescence Spectrometry written by B Lee Drake and published by Royal Society of Chemistry. This book was released on 2022-10-19 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last two decades, advances in the design, miniaturization, and analytical capabilities of portable X-ray fluorescence (pXRF) instrumentation have led to its rapid and widespread adoption in a remarkably diverse range of applications in research and industrial fields. The impetus for this volume was that, as pXRF continues to grow into mainstream use, analysts should be increasingly empowered with the right information to safely and effectively employ pXRF as part of their analytical toolkit. This volume provides introductory and advanced-level users alike with readings on topics ranging from basic principles of pXRF and qualitative and quantitative approaches, through to machine learning and artificial intelligence for enhanced applications. It also includes fundamental guidance on calibrations, the mathematics of calculating uncertainties, and an extensive reference index of all elements and their interactions with X-rays. Contributing authors have provided a wealth of information and case studies in industry-specific chapters. These sections delve into detail on current standard practices in industry and research, including examples from agricultural and geo-exploration sectors, research in art and archaeology, and metals industrial and regulatory applications. As pXRF continues to grow in use in industrial and academic settings, it is essential that practitioners continue to learn, share, and implement informed and effective use of this technique. This volume serves as an accessible guidebook and go-to reference manual for new and experienced users in pXRF to achieve this goal.
Download or read book Field Portable X Ray Fluorescence FP XRF Determinations of Metals in Post blast Ordnance Residues written by Marianne E. Walsh and published by . This book was released on 2004 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluorescent X ray Spectrograph for Dynamic Selective Oxidation Rate Studies written by William Joseph Campbell and published by . This book was released on 1961 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Field portable X ray Fluorescence System for On site Hazardous Waste Screening written by G. A. Raab and published by . This book was released on 1988 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Portable X ray Fluorescence Spectrometry written by P. J. Potts and published by . This book was released on 2008 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field portable X ray Fluorescence for Characterization of Hazardous Waste Sites written by G. A. Raab and published by . This book was released on 1990 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book X Ray Fluorescence Spectrometry and Its Applications to Archaeology written by Mary Kate Donais and published by Momentum Press. This book was released on 2018-05-30 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as a practical guide for applications of X-ray fluorescence spectrometry, a nondestructive elemental analysis technique, to the study and understanding of archaeology. Descriptions of XRF theory and instrumentation and an introduction to field applications and practical aspects of archaeology provide new users to XRF and/or new to archaeology with a solid foundation on which to base further study. Considering recent trends within field archaeology, information specific to portable instrumentation also is provided. Discussions of qualitative and quantitative approaches and applications of statistical methods relate back to types of archaeological questions answerable through XRF analysis. Numerous examples, figures, and spectra from the authors’ field work are provided including chapters specific to pigments, ceramics, glass, construction materials, and metallurgical materials.
Download or read book Implementing Field Portable X ray Fluorescence During Environmental Investigations for Radioactive Materials written by Neil T. Miller and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "During sampling or remediation of radiologically contaminated sites quantitative results are needed to determine where to sample or where to excavate soils. Although some portable gamma spectroscopy equipment does exist for field identification of radionuclides, they are not commonly used during remedial investigations. The current, and very common, process for sampling involves scanning soil with field portable gross measuring radiation detectors (i.e. sodium iodide, scintillation, etc.) that measure counts per minute of ionizing radiation; this does not give any information on the nuclides present or their concentrations in the soil. Samples are then collected at biased locations, based on the results of the field detectors, and sent to an on-site or off-site laboratory for analysis (i.e. gamma-spectroscopy, alpha-spectroscopy, etc. ) to determine what nuclides are in the soil and quantitate their concentration. If an on-site laboratory is not used it may take a few weeks to receive data back from off-site analysis, which inhibits real-time decision making while sampling and adds costs to a project. One potential method to determine real-time concentrations of metals in soil is through the use of a field portable x-ray fluorescence (XRF) device. This thesis will examine the relationship between laboratory isotopic thorium and uranium to XRF results of elemental uranium and thorium which are contaminants of concern found at Formally United Remedial Action Program (FUSRAP) sites. The FUSRAP properties were contaminated during the United States early atomic weapons era and are being remediated by the United States Army Corps of Engineers (USACE) as part of a federal remediation program. Both thorium and uranium are radioactive metals that will be investigated to determine if XRF devices can detect their presence at environmental levels of significance to assist in the investigation and remediation of future FUSRAP projects."--Abstract.
Download or read book Radioisotope X ray Fluorescence Spectrometry written by and published by . This book was released on 1970 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of X ray Fluorescence as a Screening Tool for Metals and Polybrominated Diphenyl Ethers in Children s Products and Consumer Goods written by Chad Furl and published by . This book was released on 2012 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
