A rapid method for accurate determination of <sup>241</sup>Am by sector field inductively coupled plasma mass spectrometry and its application to Sellafield site soil samples

Wang, Z. T.; Zheng, Jian; Imanaka, Tadayuki; Uchida, Shunsuke

doi:10.1039/c7ja00201g

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…Details of the instrument parameters have been reported by Zheng et al (Table S2). , Pu, organic matter (OM), particle properties, etc., were cited from the previously published work. , …”

Section: Methodsmentioning

confidence: 99%

²³⁷Np and ²⁴¹Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land–Sea Perspective

Han

Zhu

et al. 2021

ACS Omega

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During the global nuclear weapon tests, large amounts of radioactive elements are released into the environment. Long-period actinide elements such as Np, Pu, and Am exhibit different behaviors in various environments, and their isotope characteristic fingerprints are of great significance for studying the distribution, migration, and prediction of radioactive pollutants. To investigate the distribution of 241 Am and 237 Np in southern China, activities of 241 Am (0.008 ± 0.012−0.932 ± 0.066 Bq/kg) and 237 Np (0.037 ± 0.003−1.458 ± 0.063 mBq/kg), 237 Np/ 239 Pu atom ratios (0.055 ± 0.003−0.864 ± 0.054), and 241 Am/ 239+240 Pu activity ratios (0.033 ± 0.075−15.870 ± 0.477) in 95 surface sediment samples collected from the northern South China Sea and major river basins were analyzed for the first time. Due to the different scavenging mechanisms of Am and Pu, 241 Am is preferentially concentrated by sinking the particulate, while plutonium is scavenged in the coastal area, resulting in a higher 241 Am/ 239+240 Pu activity ratio in estuary and coastal areas. The distribution of 237 Np shows obvious spatial inhomogeneity as the high migration rate. The relevant fingerprint characteristic has changed greatly and needs to be updated urgently. As a result of the convergence of land and sea, 241 Am, 239,240 Pu, and 237 Np are dominated by terrestrial sediments and deposited in the coastal area of southern China, which should be paid more attention to. This work can establish China's current neptunium radioactivity database, and the difference in Np, Pu, and Am scavenging processes may be a powerful tool for evaluating the impact of the Pearl River Estuary salt tide.

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“…Details of the instrument parameters have been reported by Zheng et al (Table S2). , Pu, organic matter (OM), particle properties, etc., were cited from the previously published work. , …”

Section: Methodsmentioning

confidence: 99%

²³⁷Np and ²⁴¹Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land–Sea Perspective

Han

Zhu

et al. 2021

ACS Omega

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“…Traditionally, α spectrometry has been employed for the determination of actinides in urine samples. − However, due to the poor minimum detectable limit and a very long counting time, it is very difficult to rapidly measure TRUs at femtogram levels in emergency situations. Mass spectrometry techniques, including inductively coupled plasma mass spectrometry (ICP–MS), − accelerator mass spectrometry (AMS), and thermal ionization mass spectrometry (TIMS), offer sufficient detection limits and enable the accurate determination of transuranium radionuclides in urine. However, the AMS and TIMS techniques are limited for routine analysis of actinides because of very time-consuming chemical separation and their lower availability in the laboratory due to the higher costs.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Transuranium Radionuclides in Urine by Tandem Quadrupole ICP–MS/MS with Mass-Shift Mode Combined with Chemical Separation

Peng,

Sun,

Zhang

et al. 2024

Anal. Chem.

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The urine bioassay method for transuranium nuclides ( 237 Np, 239,240,241 Pu, 241 Am, and 244 Cm) is needed to quickly assess the potential internal contamination in emergency situations. However, in the case that the analysis of multiple radionuclides is required in the same sample, time-consuming/tedious sequential analytical procedures using multiple chromatographic separation resins would have to be employed for the separation of every single radionuclide. In this work, a rapid method for the simultaneous determination of transuranium nuclides in urine was developed by using triple quadrupole inductively coupled plasma mass spectrometry (ICP−MS/MS) combined with a single DGA resin column. The chemical behaviors of Np/Pu and Am/Cm on the DGA resin were consistent in 8− 10 mol/L HNO 3 and 0.005−0.02 mol/L NaNO 2 when 242 Pu and 243 Am were selected as tracers for Np/Pu and Am/Cm yield monitoring. Based on their different reaction rates with O 2 , 237 Np, 239,240,241 Pu, 241 Am, and 244 Cm in the same solution were simultaneously measured by ICP−MS/MS in the same run. The elimination efficiency of 238 U + tailing (7.43 × 10 −9 ), 238 U 1 H 16 O 2 + / 238 U 16 O 2 + (8.11 × 10 −8 ) and cross contamination of 241 Pu and 241 Am (<1%) were achieved using 10.0 mL/min He− 0.3 mL/min O 2 even if the eluate was directly measured without any evaporation. The detection limits of transuranium nuclides were at the femtogram level, demonstrating the feasibility of ICP−MS/MS for simultaneous transuranic radionuclides urinalysis. The developed method was validated by analyzing the spiked urine samples.

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Ultra-Trace Analysis of Fallout Plutonium Isotopes in Soil: Emerging Trends and Future Perspectives

et al. 2023

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The measurement of isotopic abundances and ratio variations of plutonium can provide important information about the sources and behaviours of radiogenic isotopes in the environment. The detection of ultra-trace isotopes of plutonium is increasing interest in the scientific literature for the determination of soil erosion rates due to their long retention times in the environment. The characteristics of plutonium within the environment make it an ideal tracer for the determination of soil redistribution rates and its robustness presents the opportunity to replace more commonly used radioisotopes such as 137Cesium and 210Lead. However, ultra-trace analysis of plutonium (fg g−1) presents analytical challenges which must be overcome in a variety of soil types. Inductively Coupled Plasma Mass Spectrometry has proven valuable for detection of plutonium in a range of environmental samples. However, severe polyatomic interferences from uranium isotopes significantly limits its application. Due to the improvements in detection sensitivity and reaction cell technology, inductively coupled plasma tandem mass spectrometry, which is also commonly referred to as triple quadrupole inductively coupled plasma tandem mass spectrometry (ICP-MS/MS), has emerged as an exceptional tool for ultra-trace elemental analysis of plutonium isotopes in environmental samples overcoming the limitations of standard quadrupole ICP-MS such as limited sensitivity and cost of analysis. In this review, common methods reported in the literature for the separation and subsequent detection of plutonium isotopes are compared to recent advances in analysis using ICP-MS/MS technology. Graphical Abstract

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A rapid method for accurate determination of ²⁴¹Am by sector field inductively coupled plasma mass spectrometry and its application to Sellafield site soil samples

Abstract: A rapid sector field inductively coupled plasma mass spectrometry based 241Am analytical method for nuclear emergency response.

Cited by 5 publications

References 23 publications

²³⁷Np and ²⁴¹Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land–Sea Perspective

²³⁷Np and ²⁴¹Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land–Sea Perspective

Simultaneous Determination of Transuranium Radionuclides in Urine by Tandem Quadrupole ICP–MS/MS with Mass-Shift Mode Combined with Chemical Separation

Ultra-Trace Analysis of Fallout Plutonium Isotopes in Soil: Emerging Trends and Future Perspectives

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A rapid method for accurate determination of 241Am by sector field inductively coupled plasma mass spectrometry and its application to Sellafield site soil samples

Abstract: A rapid sector field inductively coupled plasma mass spectrometry based 241Am analytical method for nuclear emergency response.

Cited by 5 publications

References 23 publications

237Np and 241Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land–Sea Perspective

237Np and 241Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land–Sea Perspective

Simultaneous Determination of Transuranium Radionuclides in Urine by Tandem Quadrupole ICP–MS/MS with Mass-Shift Mode Combined with Chemical Separation

Ultra-Trace Analysis of Fallout Plutonium Isotopes in Soil: Emerging Trends and Future Perspectives

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A rapid method for accurate determination of ²⁴¹Am by sector field inductively coupled plasma mass spectrometry and its application to Sellafield site soil samples

²³⁷Np and ²⁴¹Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land–Sea Perspective

²³⁷Np and ²⁴¹Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land–Sea Perspective