Download or read book Rapid Mass Spectrometry Method for Uranium and Plutonium written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new, rapid sample preparation method to improve the assay of uranium and plutonium by mass spectrometry has been developed at the Westinghouse Savannah River Site (SRS). The method is applied to the analysis of mixed plutonium-uranium oxide materials but can be applied to low-level mass spectrometry analyses as well. The new method uses a single extraction chromatographic column to separate and purify both uranium and plutonium for isotopic assay by thermal ionization mass spectrometry. A dual uranium/plutonium spike isotope dilution technique is used to allow rapid analysis of uranium/plutonium content and isotopics. A single UTEVA Resin column is utilized to simultaneously separate both uranium and plutonium from the sample matrix. The plutonium and uranium can rapidly removed from the column separately or eluted together for analysis. This new method combines sample preparation into a single, effective separation step that significantly reduces sample preparation time and costs.
Download or read book High Precision Isotopic Analyses of Uranium and Plutonium by Total Sample Volatilization and Signal Integration written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques have been developed which permit rapid, high-precision analyses of uranium and plutonium by multiple-filament thermal ionization mass spectrometry utilizing a commercial multicollector instrument. The salient feature of the method is volatilization of the entire sample while simultaneously integrating the signal from each isotope, thus virtually eliminating the effects of isotope fractionation in the evaporation process. The method permits the analysis of samples much smaller than required for conventional techniques using Faraday collectors and is expected to have application in the analysis of many elements in addition to uranium and plutonium. Run-to-run reproducibilities of
Download or read book Standard Test Method for Uranium and Plutonium Concentrations and Isotopic Abundances by Thermal Ionization Mass Spectrometry written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Aspects of the Precise and Accurate Determination of Uranium and Plutonium from Nuclear Fuel Solutions written by Olli J. Heinonen and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid Determination of Uranium in Natural Waters by Thermal Emission Mass Spectrometry written by James Robert Ferguson and published by . This book was released on 1977 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Alternate Analytical Techniques to Isotope Dilution Mass Spectrometry for Measurement of Uranium and Plutonium in Input Accountability Tanks written by Robert D. Hamman and published by . This book was released on 1979 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid Fusion Method for Determination of Plutonium Isotopes in Large Rice Samples written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new rapid fusion method for the determination of plutonium in large rice samples has been developed at the Savannah River National Laboratory (Aiken, SC, USA) that can be used to determine very low levels of plutonium isotopes in rice. The recent accident at Fukushima Nuclear Power Plant in March, 2011 reinforces the need to have rapid, reliable radiochemical analyses for radionuclides in environmental and food samples. Public concern regarding foods, particularly foods such as rice in Japan, highlights the need for analytical techniques that will allow very large sample aliquots of rice to be used for analysis so that very low levels of plutonium isotopes may be detected. The new method to determine plutonium isotopes in large rice samples utilizes a furnace ashing step, a rapid sodium hydroxide fusion method, a lanthanum fluoride matrix removal step, and a column separation process with TEVA Resin cartridges. The method can be applied to rice sample aliquots as large as 5 kg. Plutonium isotopes can be determined using alpha spectrometry or inductively-coupled plasma mass spectrometry (ICP-MS). The method showed high chemical recoveries and effective removal of interferences. The rapid fusion technique is a rugged sample digestion method that ensures that any refractory plutonium particles are effectively digested. The MDA for a 5 kg rice sample using alpha spectrometry is 7E-5 mBq g−1. The method can easily be adapted for use by ICP-MS to allow detection of plutonium isotopic ratios.
Download or read book Rapid Determination of Uranium in Natural Waters by Thermal Emission Mass Spectrometry Revision 1 written by and published by . This book was released on 1977 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: A six-inch radius mass spectrometer has been constructed and demonstrated to adequately analyze water samples for uranium concentrations down to 5 to 10 ng/liter (ppt). The precision and accuracy of the isotope-dilution, thermal emission method is sufficient to meet the needs of the Uranium Resources Evaluation (URE) project. A single analyst can analyze in excess of 50 samples per day, including all preparation and instrument time. This analysis rate will meet the economic constraints of the URE analytical program.
Download or read book RAPID DETERMINATION OF 237 NP AND PU ISOTOPES IN WATER BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY AND ALPHA SPECTROMETRY written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new method that allows rapid preconcentration and separation of plutonium and neptunium in water samples was developed for the measurement of 237Np and Pu isotopes by inductively-coupled plasma mass spectrometry (ICP-MS) and alpha spectrometry; a hybrid approach. 238U can interfere with 239Pu measurement by ICP-MS as 238UH mass overlap and 237Np via peak tailing. The method provide enhanced removal of uranium by separating Pu and Np initially on TEVA Resin, then moving Pu to DGA resin for additional removal of uranium. The decontamination factor for uranium from Pu is almost 100,000 and the decontamination factor for U from Np is greater than 10,000. This method uses stacked extraction chromatography cartridges and vacuum box technology to facilitate rapid separations. Preconcentration is performed using a streamlined calcium phosphate precipitation method. Purified solutions are split between ICP-MS and alpha spectrometry so that long and short-lived Pu isotopes can be measured successfully. The method allows for simultaneous extraction of 20 samples (including QC samples) in 4 to 6 hours, and can also be used for emergency response. 239Pu, 242Pu and 237Np were measured by ICP-MS, while 236Pu, 238Pu, and 239Pu were measured by alpha spectrometry.
Download or read book Standard test method for determination of uranium or plutonium isotopic composition or concentration by the total evaporation method using a thermal ionization mass spectrometer written by ASTM International and published by . This book was released on 2017 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Test Method for Determination of Uranium or Plutonium Isotopic Composition or Concentration by the Total Evaporation Method Using a Thermal Ionization Mass Spectrometer written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book I Thermal Emission Resin Bead Mass Spectrometric Two filament Arrangement Evaluation A 82 II The Rapid Bulk Resin Bead Method of Sample Preparation for Mass Analysis of Plutonium and Uranium in Spent Reactor Fuel A 56 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress on investigations to improve precision on mass spectrometric isotopic ratio measurements is reported. A detailed set of intructions as submitted to ASTM Committee C-26.05 on the rapid preparation and analysis of uranium and plutonium samples mass spectrometrically by the resin bead technique is also presented. This report contains information on two separate topics: one is a progress report on the International Safeguards Project Office A.82 in which we investigated various means of obtaining better precision on mass spectrometric isotopic ratio measurements. The idea investigated most thoroughly was the use of a two-filament source configuration on a pulse-counting mass spectrometer; our conclusion was that better results could be obtained with commercially available source systems. ORNL has purchased a turret source for evaluation on the two stage mass spectrometer. The second part of this report is a copy of the resin bead mass spectrometric procedure wd have submitted to ASTM for consideration for inclusion in their standard practice manual. This is a detailed, step-by-step description of uranium and plutonium sample preparation and analysis using the rapid bulk resin bead technique.
Download or read book Analysis of Uranium and Plutonium by MC ICPMS written by R. W. Williams and published by . This book was released on 2005 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This procedure is written as general guidance for the measurement of elemental isotopic composition by plasma-source inorganic mass spectrometry. Analytical methods for uranium and plutonium are given as examples.
Download or read book A Thermal emission Mass Spectrometer for Rapid and Accurate Determination of Uranium Isotopes written by and published by . This book was released on 1978 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Dynamic Multicollection for Uranium and Plutonium Analysis in Thermal Ionisation Mass Spectrometry written by J-C. Dubois and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Instrumental Methods Used in the Determination of Uranium Plutonium and Americium written by and published by . This book was released on 1990 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the use of Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) and Mass Spectrometry-Isotopic Dilution (MSID) for the quantitative determination of plutonium and uranium in different types of samples. 2[pi] - alpha counting and high resolution gamma spectrometry for the analysis of americium and plutonium in scrap, residues, and process samples is also described. Comparison of the data obtained by these methods was presented and evaluated. 11 tabs.
Download or read book Isotopic Analysis of Plutonium and Uranium by Mass Spectrometer written by A. H. TURNBULL and published by . This book was released on 1958 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
