Sample preparation method for analysis of swipe samples by inductively coupled plasma mass spectrometry
文献信息
Éva Széles, Zsolt Varga, Zsolt Stefánka
International nuclear safeguards have been applied for over 30 years to control nuclear activities. Following the recon of undeclared nuclear activities in Iraq in 1991, strengthening of the safeguards system became necessary (1995). From 1996 the detection of undeclared nuclear activities using sensitive and precise analysis of swipe samples became one of the most important parts of IAEA inspections. The aim of this study was the development of a fast and easy sample preparation and analysis method for the bulk uranium and plutonium analysis of swipe samples. For the sample preparation low power microwave-assisted digestion followed by extraction chromatography using TRU® resin was applied. The concentration of analytes of interest and their isotopic composition were determined by inductively coupled plasma sector field mass spectrometry (ICP-SFMS). The analytical performance of the method is in good agreement with the requirements (accuracy, precision, repeatability) of the International Atomic Energy Agency–Network for Analytical Laboratories (IAEA–NWAL) and can be applied for routine analysis. The low detection limits achieved enable the determination of the isotope ratios and isotope concentrations of U and Pu (234U, 235U, 236U, 238U and 239Pu, 240Pu, 241Pu) present in ultratrace concentration levels in swipe samples. The method was tested with real swipe samples collected at Hungarian radioactive source producing facilities.
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Journal of Analytical Atomic Spectrometry

The Journal of Analytical Atomic Spectrometry (JAAS) is the central journal for publishing innovative research on fundamentals, instrumentation, and methods in the determination, speciation and isotopic analysis of (trace) elements within all fields of application. This includes, but is not restricted to, the most recent progress, developments and achievements in all forms of atomic and elemental detection, isotope ratio determination, molecular analysis, plasma-based analysis and X-ray techniques. The journal welcomes full papers, communications, technical notes, critical and tutorial review articles, editorials, and comments, in addition to the Atomic Spectrometry Updates (ASU) literature reviews that are prepared by an expert panel. Submissions are welcome in the following areas, but note this list reflects the current scope and authors are strongly encouraged to contact the Editorial team if they believe that their work offers potentially new and emerging research relevant to the journal remit: Fundamental studies in the following. New and existing sources for atomic emission, absorption, fluorescence and mass spectrometry and those that provide both atomic and molecular information Sample introduction techniques for solids, liquids, gases Improvements in sensitivity, selectivity, precision, accuracy and/or robustness Isotope ratio measurements, including techniques for improving precision and mass bias correction Single channel and multichannel simultaneous detection systems Chemometrics, statistics, calibration techniques and internal standardisation Theoretical and numerical modelling of fundamental processes related to all of the above methodologies Novel or improved methodologies in areas of application including, but not limited to the following. Biosciences, including elemental, speciation and isotopic analysis in biological systems, immunoassays based on metal-labeled antibodies, bio-imaging, and nanoparticle toxicology Geochemistry Environmental science Materials science, including engineered nanoparticles and quantum dots Metrology, including reference materials Forensic analysis Food and agricultural sciences Energy Archaeometry Molecular analysis. Molecular sources for elemental and isotopic analysis Atomic sources for molecular analysis Atomic and molecular techniques simultaneously used for complementary chemical information All contributions are judged on originality and quality of scientific content, and appropriateness of length to content of new science.

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