Results 11 to 20 of about 2,088,465 (288)
Radiogenic and stable isotope measurement using a MC-ICP-MS
Journal of Analytical Science and Technology, 2011 In this study, we presented newly developed analytical methods for radioactive, radiogenic, and stable isotopes using a multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS), where the elemental purification, and precision and accuracy
Min Seok Choi +5 more
doaj +3 more sources
Precise Analysis of Gallium Isotopic Composition by MC-ICP-MS
Analytical Chemistry, 2016 Though an isotope approach could be beneficial for better understanding the biogeochemical cycle of gallium (Ga), an analogue of the monoisotopic element aluminum (Al), the geochemistry of Ga isotopes has not been widely elaborated. We developed a two-step method for purifying Ga from geological (biological) samples for precise measurement of Ga ...
Wei, Yuan +8 more
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Sulfur-induced offsets in MC-ICP-MS silicon-isotope measurements
Journal of Analytical Atomic Spectrometry, 2009 Sample preparation methods for MC-ICP-MS silicon-isotope measurements often involve a cation-exchange purification step. A previous study has argued that this would suffice for geological materials, as the occasional enrichment of anionic species would not compromise silicon-isotope analysis.
van den Boorn, S.H.J.M. +2 more
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Determination of Plutonium and Uranium Radionuclides in Glacier Ice Samples by MC-ICP-MS
CHIMIA, 2020 A radiochemical procedure for the determination of plutonium (Pu) and uranium (U) radionuclides in ice samples by multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS) is presented.
Stefan Röllin +3 more
doaj +4 more sources
Isobaric Spike Method for Absolute Isotopic Ratio Determination by MC-ICP-MS
Analytical Chemistry, 2020 Absolute isotopic ratios are required for isobaric interference corrections, spike calibrations, and isotopic analysis by external normalization methods. However, high-precision natural isotopic abundance data are lacking for many elements, particularly those with less than four isotopes or having isobaric isotopes with other elements.
Kang Shuai, Weiqiang Li, Hejiu Hui
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Precise and accurate isotopic analysis of microscopic uranium-oxide grains using LA-MC-ICP-MS [PDF]
, 2009 Uranium isotope (235U, 236U, 238U) ratios were determined for microscopic uranium-oxide grains using laser-ablation multi-collector inductively-coupled-plasma mass-spectrometry (LA-MC-ICP-MS).
Matthew S.A. Horstwood (7590791) +3 more
core +7 more sources
Isotope ratios on transient signals with GC–MC–ICP-MS
International Journal of Mass Spectrometry, 2005 Abstract ICP-MS instruments with multiple ion collectors (MC–ICP-MS) provide highly precise and accurate isotope ratio measurements. These instruments are easily coupled to chromatography, laser ablation or flow injection devices because of the ICP source, and thus attract general analytical interest for measurement of highly precise element isotope ...
Eva M. Krupp, Olivier F.X. Donard
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Measurement of isotope ratios on transient signals by MC-ICP?MS [PDF]
Analytical and Bioanalytical Chemistry, 2004 Precise and accurate isotope ratio measurements are an important task in many applications such as isotope-dilution mass spectrometry, bioavailability studies, or the determination of isotope variations in geological or nuclear samples. The technique of MC-ICP-MS has attracted much attention because it permits the precise measurement of isotope ...
Günther-Leopold, Ines +3 more
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Evaluation of the combined measurement uncertainty in isotope dilution by MC-ICP-MS [PDF]
Analytical and Bioanalytical Chemistry, 2003 The combination of metrological weighing, the measurement of isotope amount ratios by a multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS) and the use of high-purity reference materials are the cornerstones to achieve improved results for the amount content of lead in wine by the reversed isotope dilution technique.
Fortunato G, Wunderli S
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Quantification of 60Fe atoms by MC-ICP-MS for the redetermination of the half-life [PDF]
Analytical and Bioanalytical Chemistry, 2013 In many scientific fields, the half-life of radionuclides plays an important role. The accurate knowledge of this parameter has direct impact on, e.g., age determination of archeological artifacts and of the elemental synthesis in the universe. In order to derive the half-life of a long-lived radionuclide, the activity and the absolute number of atoms ...
Kivel, Niko +2 more
openaire +4 more sources