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Precise Isotope Ratio Measurements For Uranium Thorium And Plutonium By Quadrupole Based Inductively Coupled Plasma Mass Spectrometry
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Book Synopsis Precise Isotope Ratio Measurements for Uranium, Thorium and Plutonium by Quadrupole-based Inductively Coupled Plasma Mass Spectrometry by : J. S. Becker
Download or read book Precise Isotope Ratio Measurements for Uranium, Thorium and Plutonium by Quadrupole-based Inductively Coupled Plasma Mass Spectrometry written by J. S. Becker and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Radioactivity Analysis by : Michael F. L'Annunziata
Download or read book Handbook of Radioactivity Analysis written by Michael F. L'Annunziata and published by Elsevier. This book was released on 2003-09-12 with total page 1327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Radioactivity Analysis describes the preparation of samples from a wide variety of matrices, assists the investigator or technician in the selection and use of appropriate radiation detector, and presents the latest state-of-the-art computerized and automated methods of analysis. The new Handbook of Radioactivity Analysis is suitable as a teaching text for university and professional training courses. Of interest to those working in a wide spectrum of disciplines, including: scientists, engineers, physicians, and technicians involved with the preparation, utilization, or disposal of radioactive materials and the measurement of radioactivity in the environment. New, expanded and updated edition with three additional chapters Provides modern procedures and guidelines for the analysis of natural and man-made environmental radionuclides Includes up-to-date detailed sample preparation techniques for soil, air, plant, water, biological tissue, filter material, gels, surface swipes, etc. Provides practical information for radioactivity monitoring, spectrometric analysis, and radiation dosimetry Covers state-of-the-art high sample throughput microplate analysis techniques and multi-detector scintillation proximity analysis Presents the latest methods of rapid electronic radionuclide imaging Written by twenty-five experts from eight countries. Over 2,000 literature references
Book Synopsis International Conference on Isotopes and Environmental Studies by : Pavel P. Povinec
Download or read book International Conference on Isotopes and Environmental Studies written by Pavel P. Povinec and published by Elsevier. This book was released on 2006-03-08 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of the book are assembled from selected papers presented during the International Conference on Isotopes in Environmental Studies – AQUATIC FORUM 2004 convened in Monaco from 25 to 29 October 2004, which was the most important gathering of the year of isotope environmental scientists. The book reviews the present state of the art isotopic methods for better understanding of key processes in the aquatic environment, responsible for its future development and its protection. The main highlights include the latest developments in the study of the behaviour, transport and distribution of isotopes in the aquatic environment, recent climate change records using isotopic tracers in the environment, global isotopic oceanic studies, new trends in radioecological investigations and modelling, impact of groundwater-seawater interactions on coastal zones, groundwater dynamics and modelling, important for management of freshwater resources, development of new isotopic techniques, such as AMS, RIMS and ICPMS, and their applications in environmental studies, new trends in radiometrics underground techniques, new in situ radiometrics technologies and many other exciting topics which were presented and discussed during the Conference. The proceedings constitute an important contribution to the environmental isotopic research. In publishing this book the aim is to make the use of isotopes more widespread in the environmental disciplines and to further stimulate work in this exciting field. Presents selected papers from the International Conference on Isotopes in Environmental Studies - AQUATIC FORUM 2004 Addresses state-of-the-art isotopic methods for better understanding of key processes in the aquatic environment Aims to make the use of isotopes more widespread in the environmental disciplines and to further stimulate work in this exciting field
Book Synopsis Inorganic Mass Spectrometry by : Sabine Becker
Download or read book Inorganic Mass Spectrometry written by Sabine Becker and published by John Wiley & Sons. This book was released on 2008-02-28 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing an exhaustive review of this topic, Inorganic Mass Spectrometry: Principles and Applications provides details on all aspects of inorganic mass spectrometry, from a historical overview of the topic to the principles and functions of mass separation and ion detection systems. Offering a comprehensive treatment of inorganic mass spectrometry, topics covered include: Recent developments in instrumentation Developing analytical techniques for measurements of trace and ultratrace impurities in different materials This broad textbook in inorganic mass spectrometry, presents the most important mass spectrometric techniques used in all fields of analytical chemistry. By covering recent developments and advances in all fields of inorganic mass spectrometry, this text provides researchers and students with information to answer any questions on this topic as well as providing the basic fundamentals for understanding this potentially complex, but increasingly relevant subject.
Book Synopsis Applications of Inductively Coupled Plasma-mass Spectrometry to Radionuclide Determinations by : Roy W. Morrow
Download or read book Applications of Inductively Coupled Plasma-mass Spectrometry to Radionuclide Determinations written by Roy W. Morrow and published by ASTM International. This book was released on 1995 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concentration-Gradient-Method for Improvement of Precision and Accuracy of Isotope Ratio Analysis Using Quadrupole Based Inductively Coupled Plasma-mass Spectrometry by : Michail Dronov
Download or read book Concentration-Gradient-Method for Improvement of Precision and Accuracy of Isotope Ratio Analysis Using Quadrupole Based Inductively Coupled Plasma-mass Spectrometry written by Michail Dronov and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Uranium Isotope Measurements by Quadrupole ICP-MS for Process Monitoring of Enrichment by : RN. Bolin
Download or read book Uranium Isotope Measurements by Quadrupole ICP-MS for Process Monitoring of Enrichment written by RN. Bolin and published by . This book was released on 1998 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, uranium isotopic ratio measurements in the nuclear industry have been performed using Thermal Ionization Mass Spectrometry (TIMS); primarily due to the high level of precision that can be achieved. TIMS analysis, however, requires sample purification and intricate sample loading. Quadrupole (low resolution, single detector) inductively coupled plasma -- mass spectrometry, Q-ICP-MS, overcomes these disadvantages and is a cost-effective alternative, i.e., in terms of initial capital, maintenance, and operating costs. This paper presents a simple, single standard approach for measuring uranium isotope content in various solid and liquid nuclear materials along with some comparison data of Q-ICP-MS and TIMS. Intensity ratios of 234U, 235U, 236U, and 238U to total U intensity are produced, providing the enrichment level or percent 235U. A detailed description of the instrument and data collection parameters is also provided. Optimal precision and accuracy are achieved through the use of a single standard which is closely matched to the enrichment and concentration of the samples. Depending upon the standard chosen, enrichments between depleted and 97% can be quantified. Standard deviations for the major uranium isotopes are typically within 0.02 absolute and at least an order of magnitude lower for the minor U isotope abundances.
Book Synopsis High Precisin and High Accuracy Isotopic Measurement of Uranium Using Lead and Thorium Calibration Solutions by Inductively Coupled Plasma-Multiple Collector-Mass Spectrometry by : I. Bowen
Download or read book High Precisin and High Accuracy Isotopic Measurement of Uranium Using Lead and Thorium Calibration Solutions by Inductively Coupled Plasma-Multiple Collector-Mass Spectrometry written by I. Bowen and published by . This book was released on 1998 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel method for the high accuracy and high precision measurement of uranium isotopic composition by Inductively Coupled Plasma-Multiple Collector-Mass Spectrometry is discussed. Uranium isotopic samples are spiked with either thorium or lead for use as internal calibration reference materials. This method eliminates the necessity to periodically measure uranium standards to correct for changing mass bias when samples are measured over long time periods. This technique has generated among the highest levels of analytical precision on both the major and minor isotopes of uranium. Sample throughput has also been demonstrated to exceed Thermal Ionization Mass Spectrometry by a factor of four to five.
Book Synopsis Determination of Total and Isotopic Uranium and Total Thorium in Soils by Inductively Coupled Plasma-Mass Spectrometry by : RN. Bolin
Download or read book Determination of Total and Isotopic Uranium and Total Thorium in Soils by Inductively Coupled Plasma-Mass Spectrometry written by RN. Bolin and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inductively coupled plasma-mass spectrometry (ICP-MS), using standard sample introduction by peristaltic pumping, is presented as a method to determine total and isotopic uranium (234U, 235U, 236U, and 238U) and thorium (232Th) in soil samples. Initial sample preparation consists of oven drying to determine moisture content, and grinding and mixing the soil to make it homogenous. This is followed by a nitric/hydrofluoric acid digestion to bring the uranium into solution. Bismuth (209Bi) is added prior to digestion to monitor for losses due to sample preparation and analysis. An additional digestion, using nitric/perchloric acid is performed if the total thorium concentration is required on the sample. The uranium and thorium content of this solution and the 235U/238U ratio are measured on an initial pass through the ICP-MS. The total uranium measurement is based on the 238U isotope measurement with correction for the presence of the U isotopes. To determine the concentration of the less abundant 234U and 236U isotopes, the digestate is further concentrated by using a solid phase extraction column (TRUSpec by EiChrom Industries, Inc.) before a second pass through the ICP-MS.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Isotopic Ratio Measurement of Uranium in the Form of Hydrolyzed Uranium Hexafluoride by Inductively Coupled Plasma Multiple Collector Mass Spectrometry by : T. Hodgson
Download or read book The Isotopic Ratio Measurement of Uranium in the Form of Hydrolyzed Uranium Hexafluoride by Inductively Coupled Plasma Multiple Collector Mass Spectrometry written by T. Hodgson and published by . This book was released on 1995 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: An inductively coupled plasma-multiple collector-mass spectrometer (ICP-MC-MS) has been used to measure the isotopic composition of uranium in three solutions of uranium hexafluoride. The 235U: 238U ratio of each sample solution ranged from approximately 0.007 to 0.03 to 1.0. The measurements are linear over this range and the precision and accuracy are comparable, if not superior, to that obtained by thermal ionization mass spectrometry (TIMS). However, acceptable isotopic ratio measurement of uranium hexafluoride solutions is not possible by TIMS because the presence of fluoride ions severely limits analytical precision. Hence, the fluoride must be removed prior to analysis. This necessitates a chemical purification stage which adds both time and expense to the measurement process. This study reports direct, high precision, accurate uranium isotope ratio measurements on solutions of uranium hexafluoride. The instrumental time required for the analysis of 15 uranium samples with the ICP-MC-MS totals 135 min. This compares with an estimated time requirement of 600 min by TIMS and a time of 900 min by UF6 gas mass spectrometry.
Book Synopsis High-precision isotope ratio measurements of uranium and plutonium in the environment by : Thorsten Warneke
Download or read book High-precision isotope ratio measurements of uranium and plutonium in the environment written by Thorsten Warneke and published by . This book was released on 2002 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1986 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Accurate Determination of Curium and Californium Isotopic Ratios by Inductively Coupled Plasma Quadrupole Mass Spectrometry (ICP-QMS) in 248Cm Samples for Transmutation Studies by :
Download or read book Accurate Determination of Curium and Californium Isotopic Ratios by Inductively Coupled Plasma Quadrupole Mass Spectrometry (ICP-QMS) in 248Cm Samples for Transmutation Studies written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The French Atomic Energy Commission has carried out several experiments including the mini-INCA (INcineration of Actinides) project for the study of minor-actinide transmutation processes in high intensity thermal neutron fluxes, in view of proposing solutions to reduce the radiotoxicity of long-lived nuclear wastes. In this context, a Cm sample enriched in 248Cm (≈97 %) was irradiated in thermal neutron flux at the High Flux Reactor (HFR) of the Laue-Langevin Institute (ILL). This work describes a quadrupole ICP-MS (ICP-QMS) analytical procedure for precise and accurate isotopic composition determination of Cm before sample irradiation and of Cm and Cf after sample irradiation. The factors that affect the accuracy and reproducibility of isotopic ratio measurements by ICP-QMS, such as peak centre correction, detector dead time, mass bias, abundance sensitivity and hydrides formation, instrumental background, and memory blank were carefully evaluated and corrected. Uncertainties of the isotopic ratios, taking into account internal precision of isotope ratio measurements, peak tailing, and hydrides formations ranged from 0.3% to 1.3%. This uncertainties range is quite acceptable for the nuclear data to be used in transmutation studies.
Book Synopsis Improvements in the Accuracy and Precision of Isotope Ratio Measurements by Double Focussing Inductively Coupled Plasma Mass Spectrometry by : Christopher Ingle
Download or read book Improvements in the Accuracy and Precision of Isotope Ratio Measurements by Double Focussing Inductively Coupled Plasma Mass Spectrometry written by Christopher Ingle and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Resolution Inductively Coupled Plasma Mass Spectrometry for the Trace Determination of Plutonium Isotope Ratios in Environmental Samples by : S. Sturup
Download or read book High Resolution Inductively Coupled Plasma Mass Spectrometry for the Trace Determination of Plutonium Isotope Ratios in Environmental Samples written by S. Sturup and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inductively Coupled Plasma Mass Spectrometry for Stable Isotope Metabolic Tracer Studies of Living Systems by :
Download or read book Inductively Coupled Plasma Mass Spectrometry for Stable Isotope Metabolic Tracer Studies of Living Systems written by and published by . This book was released on 1999 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focuses on the development of methods for stable isotope metabolic tracer studies in living systems using inductively coupled plasma single and dual quadrupole mass spectrometers. Sub-nanogram per gram levels of molybdenum (Mo) from human blood plasma are isolated by the use of anion exchange alumina microcolumns. Million-fold more concentrated spectral and matrix interferences such as sodium, chloride, sulfate, phosphate, etc. in the blood constituents are removed from the analyte. The recovery of Mo from the alumina column is 82 ± 5% (n = 5). Isotope dilution inductively coupled plasma mass spectrometry (ID-ICP-MS) is utilized for the quantitative ultra-trace concentration determination of Mo in bovine and human blood samples. The average Mo concentration in reference bovine serum determined by this method is 10.2 ± 0.4 ng/g, while the certified value is 11.5 ± 1.1 ng/g (95% confidence interval). The Mo concentration of one pool of human blood plasma from two healthy male donors is 0.5 ± 0.1 ng/g. The inductively coupled plasma twin quadrupole mass spectrometer (ICP-TQMS) is used to measure the carbon isotope ratio from non-volatile organic compounds and bio-organic molecules to assess the ability as an alternative analytical method to gas chromatography combustion isotope ratio mass spectrometry (GC-combustion-IRMS). Trytophan, myoglobin, and [beta]-cyclodextrin are chosen for the study, initial observation of spectral interference of 13C with 12C1H comes from the incomplete dissociation of myoglobin and/or [beta]-cyclodextrin.
