Ultra-trace determination of 90Sr, 137Cs, 238Pu, 239Pu, and 240Pu by triple quadruple collision/reaction cell-ICP-MS/MS: Establishing a baseline for global fallout in Qatar soil and sediments

Amr, M. A.; Helal, A. I.; Al-Kinani, A. T.; Balakrishnan, P.

doi:10.1016/j.jenvrad.2015.12.008

Cited by 53 publications

(41 citation statements)

References 80 publications

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“…The dynamic collision/reaction cell (DRC) technology in the ICP-MS has shown a powerful feature to eliminate polyatomic ions. Different reaction gasses, such as He, O2, N2O, NH3 and CO2 have been proposed for removing uranium hydride [27][28][29][30][31] . We had investigated the application of NH3-He as reaction gas in the ICP-MS measurement of plutonium isotopes, and found that the elimination efficiency of uranium hydrides was improved by a factor of 15 compared to the ordinary method without reaction gas 14 , which is still not sufficient for the determination ultra-low level plutonium in the presence of high uranium.…”

Section: Hr-icp -Ms and Icp-ms-mc Have Been Used For Determination Ofmentioning

confidence: 99%

“…Although an improvement on removal of uranium hydrides was observed in our experiment, but only 2-3 times suppression of UH + ions signal, which is not sufficient for the determination of plutonium isotopes in high uranium samples. ICP-MS/MS with two quadruple mass separators has been applied for determination of plutonium isotopes 14,31 . With this instrument, a better abundance sensitivity of up to 10 -10 can be achieved, which can significantly remove the interference of the 238 U peak tailing in the measurement of 239…”

Section: Hr-icp -Ms and Icp-ms-mc Have Been Used For Determination Ofmentioning

confidence: 99%

“…Pu + ions from the plasma through the first quadrupole has a relatively high and large expanded kinetic energy (0-20 eV), elastic collision of these ions with helium atoms reduced their kinetic energy to about 2 eV and narrowed distribution of the ion kinetic energy (0-3 eV), which significantly improved ion focusing, and consequently increased the numbers of ions counted in the detector, i.e. measurement sensitivity 8,31 .…”

Section: Elimination Of Uranium Interference Using Co2-he As Reactionmentioning

confidence: 99%

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Wide Band Gap Cu₂SrSnS₄ Solar Cells from Oxide Precursors

Crovetto

Nielsen

Stamate

et al. 2019

ACS Appl. Energy Mater.

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ICP-MS is becoming a competitive technique for the measurement of plutonium isotopes. However, the abundance sensitivity (tailing of 238 U to m/z=239 and 240), isobaric and polyatomic ions interferences (e.g. U H +) are the most critical challenges for determination of low-level plutonium in high uranium samples. This work presents a new method to solve this problem using ICP-MS with two tandem quadrupole separators and dynamic collision/reaction cell combined with chemical separation. The interference of uranium hydrides (238 U 1 H + and 238 U 1 H2 +) was effectively eliminated using CO2 as reaction gas by converting hydrides to oxides of uranium ions (UO + /UO2 +), but still keep the intensity of Pu + signal. The tailing interference of 238 U + (abundance sensitivity) was intensively eliminated by significantly suppressing the 238 U + signal using CO2 as reaction gas and using two tandem quadrupole mass separators in the ICP-MS/MS. With these approaches, the overall interference of uranium was reduced to <110-8 , which is 3 orders of magnitude better than the conventional ICP-MS. Combined with chemical separation with a decontamination factor of 10 5 for uranium, an overall factor of 10 12 for elimination of uranium interference was achieved. The developed method was demonstrated to enable accurate determination of <10-15 g/g level plutonium isotopes in environmental samples even in uranium debris sample with a U/Pu atomic ratio up to 10 12. The developed method was validated by the analysis of spiked solution and certified reference materials of soil.

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Section: Hr-icp -Ms and Icp-ms-mc Have Been Used For Determination Ofmentioning

confidence: 99%

Section: Hr-icp -Ms and Icp-ms-mc Have Been Used For Determination Ofmentioning

confidence: 99%

Section: Elimination Of Uranium Interference Using Co2-he As Reactionmentioning

confidence: 99%

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Wide Band Gap Cu₂SrSnS₄ Solar Cells from Oxide Precursors

Crovetto

Nielsen

Stamate

et al. 2019

ACS Appl. Energy Mater.

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“…The typical 90 Sr level in environmental samples is quite low, in the range of fg g −1 , for contaminated Fukushima soil samples it is around 4 fg g −1 (20 Bq kg −1 ) or lower 9 . In order to successfully measure 90 Sr using inorganic mass spectrometry either a high mass resolution (~30,000) which is not yet available to resolve the isobaric 90 Zr peak or an efficient chemical purification method for removal of Zr from Sr at ultra-trace levels is required 10,11 . For practical purposes, quite a high decontamination factor (in the range of 10 8 to 10 11 ) is required for 90 Zr isobaric interference removal (accepting just a 10% contribution to the 90 Sr signal) in case of soil samples 12 .…”

Section: Introductionmentioning

confidence: 99%

Accurate and precise determination of 90Sr at femtogram level in IAEA proficiency test using Thermal Ionization Mass Spectrometry

Kávási

Sahoo

Arae

et al. 2019

Sci Rep

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A novel method for the determination of ultra-trace level 90Sr has been recently developed applying thermal ionization mass spectrometry (TIMS). The method includes the chemical separation of Zr (isobaric interference of 90Zr) from the samples followed by determination of 90Sr/88Sr abundance sensitivity (2.1 × 10−10). The analytical performance of this method was assessed in the IAEA-TEL 2017-3 worldwide open proficiency test. For 90Sr determination, tap water and milk powder samples were distributed amongst the participant laboratories with reference values of 11.2 ± 0.3 Bq kg−1 (2.2 ± 0.1 fg g−1) and 99.9 ± 5.0 Bq kg−1 (19.5 ± 1.0 fg g−1), respectively. The stable Sr concentrations were 39.4 ± 0.9 ng g−1 and 2.5 ± 0.1 µg g−1 while the 90Sr/88Sr isotope ratios were 6.47 ± 0.17 × 10−8 and 9.04 ± 0.45 × 10−9 in the tap water and milk powder samples, respectively. For TIMS measurement, 50 mL water and 1 g milk powder samples were taken for analysis. This TIMS method demonstrated an impressive accuracy (relative bias of 4.2% and −2.1%, respectively) and precision (relative combined uncertainty of 4.1% and 7.6%, respectively) when compared with radiometric techniques. For the first time in the history of inorganic mass-spectrometry, 90Sr analysis using a TIMS instrument is confirmed by an independent proficiency test.

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“…The use of D 2 in place of H 2 in the collision cell of a MC-ICP-MS instrument improved 222 measurement of41 K/ 39 K isotope ratios in a variety of samples, including plants. A method 223 for isotope ratio Simplifications in sample preparation made possible by the availability of ICP-MS/MS included a single-column chromatography procedure 224 for determination of 135 Cs concentrations and 135 Cs/137 Cs isotope ratios in soil and sediment, and a fast method225 for measuring90 Sr,137 Cs, 238 Pu, 239 Pu and240 Pu in soil digests. In a study 226 of the quantitative determination of C, it was suggested that routine measurement of residual C content, along with more conventional analytes, in plant digests by ICP-MS/MS could allow the efficiency of sample digestion to be assessed.…”

mentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Butler

Cairns

Cook

et al. 2017

J. Anal. At. Spectrom.

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This is the 29th annual review of the application of atomic spectrometry to the chemical analysis of environmental samples. This Update refers to papers published approximately between September 2012 and July 2013 and continues the series ofAtomic Spectrometry Updates (ASUs) Developments in geochemical analysis included the production and (re)certification of new geological RMs for bulk, isotopic and microspatial analysis. Optimisation of LA-ICP-MS techniques for the interrogation of geochemical samples continues to be reported and a number of useful instrumental review articles (AMS, ICP-MS and SIMS) have been published.Feedback on this review is most welcome and the review coordinator can be contacted using the email address provided. Sampling techniquesThe development of personal workplace air samplers, used to monitor workers' exposure to airborne particles, continues to be a fertile area of research. cartridge assembly which could then be loaded directly into an XRF system for analysis. Initial wind tunnel tests using test aerosols of known particle size indicated that this sampler could collect representative particle size distributions.Generation of test particle atmospheres in a laboratory environment is difficult and it is most informative to see publications describing the development and validation of aerosol test chambers. A system 21 for source characterisation and controlled human exposure to NPs generated during gas-metal arc welding had an airtight 22 m 3 climate-controlled stainless steel chamber at its core. A variety of online measurements, e.g. using TEOM or SMPS, and offline measurements, e.g. using electron microscopy and PIXE techniques, could be made via sampling ports/samplers. Test particles were generated in a separate chamber and subsequently piped into the main chamber. Stable concentrations of atmospheric particles could be maintained for up to 6 h and concentrations could be varied from <5 µg m by EDXRF spectrometry (Cr, Cu, Fe, Ni, Pb and Zn), there were no significant differences in values between the two measurement approaches (paired t-test, p > 0.2, 95 % CI). In summary, the authors concluded that this method was suitable for the high throughput analysis of lightly loaded air filter samples. 11The bioaccessible metal fraction in urban aerosol particles may be a more informative metric than the total metal composition in assessng the potential health effects of exposure to inhaled particles. . Using this optimised method, the airborne levels of Ag in Buenos Aires was determined to be 2-4.5 ng m , respectively. Emission spectroscopyInvestigation into the use of LIBS for the analysis of aerosol samples is a focus of a number of research groups. Elemental emission intensities were normalised to carbon (measured at 247.856 nm) which could be used as an internal standard because the carbon emission from the underlying nylon filter was much larger and relatively more stable than the signal from the deposited carbonaceous particles. This approach was useful for minimising shot-to-...

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Ultra-trace determination of 90Sr, 137Cs, 238Pu, 239Pu, and 240Pu by triple quadruple collision/reaction cell-ICP-MS/MS: Establishing a baseline for global fallout in Qatar soil and sediments

Cited by 53 publications

References 80 publications

Wide Band Gap Cu₂SrSnS₄ Solar Cells from Oxide Precursors

Wide Band Gap Cu₂SrSnS₄ Solar Cells from Oxide Precursors

Accurate and precise determination of 90Sr at femtogram level in IAEA proficiency test using Thermal Ionization Mass Spectrometry

Atomic spectrometry update – a review of advances in environmental analysis

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Ultra-trace determination of 90Sr, 137Cs, 238Pu, 239Pu, and 240Pu by triple quadruple collision/reaction cell-ICP-MS/MS: Establishing a baseline for global fallout in Qatar soil and sediments

Cited by 53 publications

References 80 publications

Wide Band Gap Cu2SrSnS4 Solar Cells from Oxide Precursors

Wide Band Gap Cu2SrSnS4 Solar Cells from Oxide Precursors

Accurate and precise determination of 90Sr at femtogram level in IAEA proficiency test using Thermal Ionization Mass Spectrometry

Atomic spectrometry update – a review of advances in environmental analysis

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About

Wide Band Gap Cu₂SrSnS₄ Solar Cells from Oxide Precursors

Wide Band Gap Cu₂SrSnS₄ Solar Cells from Oxide Precursors