1
|
Zhang L, Vassileva E. Determination of ultra-trace level 241Am in marine sediment and seawater by combining TK200-TK221 tandem-column extraction chromatography and SF ICP-MS. Talanta 2024; 271:125724. [PMID: 38301375 DOI: 10.1016/j.talanta.2024.125724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/17/2024] [Accepted: 01/25/2024] [Indexed: 02/03/2024]
Abstract
Sound strategies for marine chemical monitoring call for measurement systems capable of producing comparable analytical results with demonstrated quality. This work presents the development and validation of a new analytical procedure for the determination of the 241Am mass fraction in marine sediment and seawater samples at low levels. The procedure includes a tandem-column extraction chromatography for separation of 241Am and sector field-inductively coupled plasma mass spectrometry (SF ICP-MS) for its determination. The separation is based on the application of two new extraction resins, TK200 and TK221. The acid leaching method was employed for the pre-treatment of marine sediments, while Fe(OH)3 co-precipitation was used for Am pre-concentration in seawater samples. The extraction behaviors of Am on TK221 resins in the different acidic mediums were investigated. The removal capabilities of the tandem TK200-TK221 columns for the 241Am in the presence of interfering elements including Pu, Pb, Hg, Bi, Tl, Pt, Hf, U, and Th were carefully investigated and the corresponding decontamination factors (DFs) estimated to be in the range from 104 to 106. The main interfering element Pu was efficiently removed with a DF of about 6 × 105. Matrix rare earth elements (REEs) in marine sediments were further removed by the application of TEVA resins. 241Am mass fraction was quantified by the application of external calibration and SF ICP-MS. Following the recommendations of the ISO/IEC 17025 guidelines, the validation of the analytical procedure was accomplished by executing it on the certified reference material (CRM) IAEA-385 (marine sediment) and the seawater IAEA-443 reference materials (RM). The obtained results showed that 241Am mass fractions were accurately determined in both reference samples, with excellent reproducibility (2.1 % and 7.6 %) and low LODs (0.4 fg g-1 and 0.2 fg g-1). The relative expanded uncertainties (k = 2) obtained were 17.1 % and 29.0 %, respectively. The overall analytical times for the application of the proposed procedure on the marine sediment and seawater samples were evaluated to be only about 9 h and 6.5 h, respectively. It shows great advantages for its potential applications for emergency monitoring of 241Am contamination in the marine environment.
Collapse
Affiliation(s)
- Ling Zhang
- International Atomic Energy Agency, Environment Laboratories, 4 Quai Antoine 1er, Principality of Monaco, 98000, Monaco; Institute of Materials, China Academy of Engineering Physics, Mianyang, 621900, China.
| | - Emilia Vassileva
- International Atomic Energy Agency, Environment Laboratories, 4 Quai Antoine 1er, Principality of Monaco, 98000, Monaco
| |
Collapse
|
2
|
Peng C, Sun J, Zhang F, Xing S, Liu X, Chen C, Hou X, Shi K, Wu W. Simultaneous Determination of Transuranium Radionuclides in Urine by Tandem Quadrupole ICP-MS/MS with Mass-Shift Mode Combined with Chemical Separation. Anal Chem 2024; 96:2514-2523. [PMID: 38289041 DOI: 10.1021/acs.analchem.3c04699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
The urine bioassay method for transuranium nuclides (237Np, 239,240,241Pu, 241Am, and 244Cm) 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 HNO3 and 0.005-0.02 mol/L NaNO2 when 242Pu and 243Am were selected as tracers for Np/Pu and Am/Cm yield monitoring. Based on their different reaction rates with O2, 237Np, 239,240,241Pu, 241Am, and 244Cm in the same solution were simultaneously measured by ICP-MS/MS in the same run. The elimination efficiency of 238U+ tailing (7.43 × 10-9), 238U1H16O2+/238U16O2+ (8.11 × 10-8) and cross contamination of 241Pu and 241Am (<1%) were achieved using 10.0 mL/min He-0.3 mL/min O2 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.
Collapse
Affiliation(s)
- Chenyang Peng
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jiang Sun
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Feng Zhang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shan Xing
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, P. R. China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xingchen Liu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Cancan Chen
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaolin Hou
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, P. R. China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Keliang Shi
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, P. R. China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wangsuo Wu
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, P. R. China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
3
|
Xiong K, Bu W, Ni Y, Liu X, Zheng J, Aono T, Yang C, Hu S. Rapid monitoring of 241Am in small amount of sediment samples by combining extraction chromatography for highly efficient separation of interfering and matrix elements and ICP-MS/MS measurement. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
|
4
|
Liu S, Shen H, Gao C, Liu JH, Yu YL, Wang JH. Analysis of trace phytoavailable heavy metals in saline soil extract by one-step electroextraction coupled with in situ desorption microplasma optical emission spectrometry. Anal Chim Acta 2022; 1232:340497. [DOI: 10.1016/j.aca.2022.340497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/02/2022] [Accepted: 10/05/2022] [Indexed: 11/30/2022]
|
5
|
Wang H, Ni Y, Men W, Wang Z, Liu M, Xiao D, Zheng J. Distributions of fallout 137Cs, 239+240Pu and 241Am in a soil core from South Central China. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2022; 251-252:106971. [PMID: 35961100 DOI: 10.1016/j.jenvrad.2022.106971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 06/16/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
The source and vertical distribution of 137Cs,239+240Pu and 241Am activity concentrations in a soil core from Hunan Province, China were investigated. The maximum 137Cs and 239+240Pu activity concentrations were 15.45 ± 0.76 mBq/g and 0.819 ± 0.066 mBq/g, respectively. While the maximum 241Am activity concentration in samples obtained from the core was 0.341 ± 0.019 mBq/g. The 240Pu/239Pu atom ratio and the 137Cs/239+240Pu activity ratio were 0.183 ± 0.011 and 19.5 ± 1.8, respectively, and both were consistent with the characteristic value of global fallout. The integrated 241Am/239+240Pu activity ratio for global fallout was also re-estimated. The measured 241Am/239+240Pu activity ratio (average 0.43 ± 0.07) in the samples was very close to the estimated value (0.45), which suggested their 241Am also came from the global fallout. Regarding the vertical distribution of 137Cs, 239+240Pu and 241Am in these red soil samples, all these radionuclides had higher concentrations in upper layers of several centimeters of soil while they had slightly lower concentrations in lower soil layers down to 30 cm. Vertical distributions of 137Cs/239+240Pu and 241Am/239+240Pu activity ratios indicated the migration velocity was Am ≈ Pu > Cs. The intrinsic chemical properties of the radionuclides as well as soil type and properties (acidic, nutrient-deficient and low in organic matter and cation exchange capacity) might be reasons for the differences in their migration behaviors.
Collapse
Affiliation(s)
- Hai Wang
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China; National Institute of Radiological Sciences, National Institutes for Quantum Science and Technology, 491 Anagawa, Inage, Chiba, 263-8555, Japan.
| | - Youyi Ni
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
| | - Wu Men
- School of Marine Sciences, Nanjing University of Information Science & Technology, Ningliu Road, Nanjing, Jiangsu, 210044, China
| | - Zhongtang Wang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
| | - Min Liu
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - Detao Xiao
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - Jian Zheng
- National Institute of Radiological Sciences, National Institutes for Quantum Science and Technology, 491 Anagawa, Inage, Chiba, 263-8555, Japan.
| |
Collapse
|
6
|
Zhang H, Hou X, Qiao J, Lin J. Determination of 241Am in Environmental Samples: A Review. Molecules 2022; 27:molecules27144536. [PMID: 35889408 PMCID: PMC9315525 DOI: 10.3390/molecules27144536] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 02/04/2023] Open
Abstract
The determination of 241Am in the environment is of importance in monitoring its release and assessing its environmental impact and radiological risk. This paper aims to give an overview about the recent developments and the state-of-art analytical methods for 241Am determination in environmental samples. Thorough discussions are given in this paper covering a wide range of aspects, including sample pre-treatment and pre-concentration methods, chemical separation techniques, source preparation, radiometric and mass spectrometric measurement techniques, speciation analyses, and tracer applications. The paper focuses on some hyphenated separation methods based on different chromatographic resins, which have been developed to achieve high analytical efficiency and sample throughput for the determination of 241Am. The performances of different radiometric and mass spectrometric measurement techniques for 241Am are evaluated and compared. Tracer applications of 241Am in the environment, including speciation analyses of 241Am, and applications in nuclear forensics are also discussed.
Collapse
Affiliation(s)
- Haitao Zhang
- Northwest Institute of Nuclear Technology, Xi’an 710024, China; (H.Z.); (J.L.)
| | - Xiaolin Hou
- Department of Environmental and Resource Engineering, Technical University of Denmark, DTU Risø Campus, 4000 Roskilde, Denmark;
| | - Jixin Qiao
- Department of Environmental and Resource Engineering, Technical University of Denmark, DTU Risø Campus, 4000 Roskilde, Denmark;
- Correspondence:
| | - Jianfeng Lin
- Northwest Institute of Nuclear Technology, Xi’an 710024, China; (H.Z.); (J.L.)
| |
Collapse
|
7
|
Luo M, Liu D, Yang Y, Dai X, Wu Y, Shi K. Simultaneous determination of actinides and 90Sr in large-size soil and sediment samples. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2022; 247:106854. [PMID: 35276606 DOI: 10.1016/j.jenvrad.2022.106854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
A simultaneous analytical method for sequential separation and determination of actinides and 90Sr in large-size environmental samples has been developed. In this method, successive co-precipitation steps were firstly conducted to remove matrix elements, then sequential column separation method was applied for simultaneous separation and purification of actinides and 90Sr/90Y. By using vacuum box technology, the total analytical time was minimized and batch processing allowed analyzing 12 samples in four days. The activity of 90Sr was obtained immediately by measuring its daughter radionuclide (90Y) with triple-to-double coincidence ratio (TDCR) Cherenkov counting, while the concentrations of Pu isotopes and 241Am could be measured by alpha spectrometry and mass spectrometric techniques. The overall recoveries of Pu, Am, Sr and Y were higher than 70% for the entire procedure, while the recovery ratios of Sr/Y were between 0.95 and 1.04 before chromatographic separation. The developed method was verified using 20 g and 50 g of environmental soil samples spiked with certified reference materials IAEA-384 or IAEA-385 and standard solution of 90Sr/90Y, and good agreement between the expected values and measured results has been achieved.
Collapse
Affiliation(s)
- Maoyi Luo
- China Institute for Radiation Protection, Taiyuan, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Daqian Liu
- China Institute for Radiation Protection, Taiyuan, China
| | - Yao Yang
- China Institute for Radiation Protection, Taiyuan, China
| | - Xiongxin Dai
- China Institute for Radiation Protection, Taiyuan, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China.
| | - Yang Wu
- China Institute for Radiation Protection, Taiyuan, China
| | - Keliang Shi
- Radiochemistry Lab, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China
| |
Collapse
|
8
|
Wang Y, Fan J, Zhai X, Li Z, Yu Q, Zhang W, Liu Z. An efficient method for the removal of Pb prior to the ultra-trace Am measurement by ICP-MS. RADIOCHIM ACTA 2022. [DOI: 10.1515/ract-2022-0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The existence of Pb which formed polyatomic ions such as PbCl+, PbAr+ would interfere the determination of ultra-trace Am by ICP-MS. An extraction chromatography method for the removal of Pb interference was provided in this work to improve the determination accuracy of ultra-trace Am by ICP-MS. In this study, Sr resin was applied to separate Am and Pb because of the great difference between Am and Pb on adsorption ability. The variable parameters including nitric acid concentration, loading volume, column height and loading amount were investigated to optimize the separation conditions for high recovery of Am (R(Am)) as well as high decontamination factor of Pb (DF(Pb)). The optimal separation method was recommended in the study with the recovery of Am over 99% and the decontamination factor of Pb over 2 × 105. Moreover, the method was successfully applied to the analysis of 241Am in the simulated samples.
Collapse
Affiliation(s)
- Yufeng Wang
- Northwest Institute of Nuclear Technology , Xi’an , Shaanxi , 710024 , China
| | - Jinlong Fan
- Northwest Institute of Nuclear Technology , Xi’an , Shaanxi , 710024 , China
| | - Xiufang Zhai
- Northwest Institute of Nuclear Technology , Xi’an , Shaanxi , 710024 , China
| | - Zhiming Li
- Northwest Institute of Nuclear Technology , Xi’an , Shaanxi , 710024 , China
| | - Qingjiang Yu
- Northwest Institute of Nuclear Technology , Xi’an , Shaanxi , 710024 , China
| | - Weichao Zhang
- Northwest Institute of Nuclear Technology , Xi’an , Shaanxi , 710024 , China
| | - Zhichao Liu
- Northwest Institute of Nuclear Technology , Xi’an , Shaanxi , 710024 , China
| |
Collapse
|
9
|
Han X, Zhu J, Zhu Y, Li G, Liu Z. 237Np and 241Am as Fingerprints in the Major River Basins of Southern China and North South China Sea: A Land-Sea Perspective. ACS OMEGA 2021; 6:26897-26909. [PMID: 34693111 PMCID: PMC8529606 DOI: 10.1021/acsomega.1c03152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/30/2021] [Indexed: 05/25/2023]
Abstract
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 241Am and 237Np in southern China, activities of 241Am (0.008 ± 0.012-0.932 ± 0.066 Bq/kg) and 237Np (0.037 ± 0.003-1.458 ± 0.063 mBq/kg), 237Np/239Pu atom ratios (0.055 ± 0.003-0.864 ± 0.054), and 241Am/239+240Pu 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, 241Am is preferentially concentrated by sinking the particulate, while plutonium is scavenged in the coastal area, resulting in a higher 241Am/239+240Pu activity ratio in estuary and coastal areas. The distribution of 237Np 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, 241Am, 239,240Pu, and 237Np 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.
Collapse
Affiliation(s)
- Xiaoxiao Han
- State
Key Laboratory of Radiation Medicine and Protection, School for Radiological
and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation
Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jianjun Zhu
- Department
of Emergency and Critical Care Medicine, The Second Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Yawei Zhu
- State
Key Laboratory of Radiation Medicine and Protection, School for Radiological
and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation
Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Gang Li
- State
Key Laboratory of Radiation Medicine and Protection, School for Radiological
and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation
Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
- Key
Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510300, China
| | - Zhiyong Liu
- State
Key Laboratory of Radiation Medicine and Protection, School for Radiological
and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation
Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| |
Collapse
|
10
|
Wang W, Evans RD, Evans HE. A rapid, automated system for the separation, preconcentration and measurement of 90Sr, and U, Am and Pu isotopes. Talanta 2021; 233:122507. [PMID: 34215122 DOI: 10.1016/j.talanta.2021.122507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/04/2021] [Accepted: 05/05/2021] [Indexed: 11/29/2022]
Abstract
An online separation and preconcentration method, using an automated flow injection setup and solid phase extraction followed by ICP-MS/MS, was developed for the analysis of 90Sr, and U, Am and Pu isotopes in various liquid sample matrices. The radionuclide analytes were separated from interferences and complex matrices using DGA-branched resin and Sr resin, then specific gases were used in the reaction/collision cell in the ICP-MS/MS to measure the different analytes. The system requires smaller sample volumes (10 mL), less sample preparation and shorter processing time (46 min per sample) compared to traditional radiometric and other MS techniques. Based on a 10 mL sample, the limits of detection were 1.48 pg L-1 (8257 mBq L-1) for 90Sr, 1.75 pg L-1 (0.40 mBq L-1) for 234U, 0.65 pg L-1 (77.65 mBq L-1) for 241Am, and 0.56 pg L-1 (1.25 mBq L-1) for 239Pu when all target analytes were measured in one analysis. The analytical figures of merit were evaluated for a range of sample matrices including lake water, seawater and urine and were comparable to those reported in the literature. This online system thus provides a novel, fully automated analytical tool with faster analysis time, smaller sample requirements, minimum sample preparation, low detection limits and the flexibility to handle single and multiple measurements of various radionuclides.
Collapse
Affiliation(s)
- Wei Wang
- Environmental and Life Sciences Graduate Program, Trent University, 1600, West Bank Drive, Peterborough, Ontario, K9L 0G2, Canada.
| | - R Douglas Evans
- School of the Environment and Water Quality Center, Trent University, 1600 West Bank Drive, Peterborough, Ontario, K9L 0G2, Canada
| | - Hayla E Evans
- School of the Environment and Water Quality Center, Trent University, 1600 West Bank Drive, Peterborough, Ontario, K9L 0G2, Canada
| |
Collapse
|
11
|
Rapid method for sequential determination of Pu and Am in soil and sediment samples by sector-field inductively coupled plasma mass spectrometry. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07627-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
12
|
Shao Y, Yang G, Zhang J, Luo M, Ma L, Xu D. Progress and Application on the Analysis of Anthropogenic Radionuclide 236U. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21020074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
13
|
Wang Z, Huang Z, Xie Y, Tan Z. Method for determination of Pu isotopes in soil and sediment samples by inductively coupled plasma mass spectrometry after simple chemical separation using TK200 resin. Anal Chim Acta 2019; 1090:151-158. [PMID: 31655640 DOI: 10.1016/j.aca.2019.08.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/20/2019] [Accepted: 08/27/2019] [Indexed: 10/26/2022]
Abstract
Plutonium has been extensively studied in the environment, for the purpose of radiological assessment, environmental behavior study and nuclear emergency response. To determine Pu isotopes in environmental soil and sediment, a novel analytical method was established in this study using a new type of extraction resin, TK200 resin. Firstly an investigation was performed to study the extraction behaviors of Pu, U, Th, Hg, Tl, Pb, Bi and Hf on TK200 resin. On the basis of the results, a new chromatographic procedure was then proposed to separate Pu from the elements that interfere the accurate determination of Pu isotopes by mass spectrometry. Owing to the excellent separation efficiency between Pu and interfering elements (IEs) of the developed procedure, high decontamination factors (DFs) were obtained for IEs, e.g. the DF(U) (>7.5 × 107) was the highest reported value. The separation procedure was finally combined with HNO3 leaching, CaF2/LaF3 coprecipitation and sector field-inductively coupled plasma mass spectrometry (SF-ICPMS) measurement to establish a complete method. The established method was evaluated by analyzing four standard reference materials (soil, sediment), and the results showed that both 239+240Pu activity and 240Pu/239Pu isotopic ratio were accurately determined, with stable and high Pu chemical recoveries (81-91%). The whole analytical method only took about 15 h, and the limits of detection were calculated to be 0.13-0.24 fg g-1 for Pu isotopes (for 2 g soil or sediment), guaranteeing the rapid determination of ultra-trace level Pu in soil and sediment samples.
Collapse
Affiliation(s)
- Zhongtang Wang
- The Laboratory of Radiation Protection and Nuclear Decommission Technology, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China.
| | - Zhaoya Huang
- The Laboratory of Radiation Protection and Nuclear Decommission Technology, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
| | - Yun Xie
- The Laboratory of Radiation Protection and Nuclear Decommission Technology, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
| | - Zhaoyi Tan
- The Laboratory of Radiation Protection and Nuclear Decommission Technology, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
| |
Collapse
|
14
|
Ni Y, Wang Z, Guo Q, Zheng J, Li S, Lin J, Tan Z, Huang W. Distinctive distributions and migrations of 239+240Pu and 241Am in Chinese forest, grassland and desert soils. CHEMOSPHERE 2018; 212:1002-1009. [PMID: 30286529 DOI: 10.1016/j.chemosphere.2018.09.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/10/2018] [Accepted: 09/03/2018] [Indexed: 06/08/2023]
Abstract
The vertical distributions and downward migrations of the global fallout derived 239+240Pu and 241Am in diverse types of Chinese soils (forest, grassland and desert) were studied. The mean 239+240Pu and 241Am activity concentrations in the investigated soil cores were 0.28-0.69 mBq/g and 0.13-0.37 mBq/g, respectively, while the accumulative inventories were 61.53-138.99 Bq/m2 for 239+240Pu and 28.29-61.05 Bq/m2 for 241Am. The convection-dispersion equation (CDE) was used to calculate the migration parameters of 239+240Pu and higher apparent dispersion coefficients (D) were observed for the acidic forest soils compared with the alkaline grassland and desert soils; meanwhile a compartment model was employed to compare the migration of 239+240Pu and 241Am in successive soil layers which showed that the migration behaviors of 239+240Pu and 241Am were rather similar; both velocities were less than 0.3 cm/y in diverse types of soils and these findings were compatible with those of short-term laboratory simulation experiments in China.
Collapse
Affiliation(s)
- Youyi Ni
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China; National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Zhongtang Wang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China.
| | - Qiuju Guo
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Jian Zheng
- National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan.
| | - Sixuan Li
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Jinxian Lin
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
| | - Zhaoyi Tan
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
| | - Wenna Huang
- Radiation Monitoring Technical Center of Ministry of Environmental Protection, Hangzhou 310012, China
| |
Collapse
|
15
|
Zhu Y, Nakano K, Wang Z, Shikamori Y, Chiba K, Kuroiwa T, Hioki A, Inagaki K. Applications and Uncertainty Estimation of Single Level Standard Addition Method ICP-MS for Elemental Analysis in Various Matrix. ANAL SCI 2018; 34:701-710. [PMID: 29887559 DOI: 10.2116/analsci.18sbp09] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The standard addition method (SAM) based on gravimetric sample preparation was investigated as an approach for the removal or cancelling of matrix effects in measurements by inductively coupled plasma mass spectrometry (ICP-MS). Deduction of the equations and experimental confirmation of the method are both given in the present work. After measuring both spiked and non-spiked samples by ICP-MS, the concentration of an element could be calculated based on the signal intensity ratio to an internal standard. A practical example was provided for the measurement of Fe in a certified reference material (CRM), i.e. NMIJ CRM 7512-a (milk powder). The validity of the method had been confirmed by the results of international comparisons with various kinds of matrix, including bioethanol, human serum, biodiesel fuel, drinking water, infant formula milk power, and seafood. The suggested method had been applied to measurements of multiple elements in three CRMs, including tap water, milk powder, and tea leave powder, respectively.
Collapse
Affiliation(s)
- Yanbei Zhu
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
| | | | - Zhongyuan Wang
- South China Sea Environment Monitoring Center, State Oceanic Administration
| | | | - Koichi Chiba
- Graduate School of Science and Technology, Kwansei Gakuin University
| | - Takayoshi Kuroiwa
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
| | - Akiharu Hioki
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
| | - Kazumi Inagaki
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
| |
Collapse
|
16
|
Rapid determination of Pu isotopes for decommission concrete samples by inductively coupled plasma mass spectrometry. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5756-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
17
|
Wang Z, Lin J, Li S, Guo Q, Huang W, Wen W, Dan G, Tan Z. Rapid method for accurate determination of actinides (U, Th, Pu and Am) in water samples for emergency response. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5640-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
18
|
Extraction behaviors of interfering elements on TRU and DGA resins for 241Am determination by mass spectrometry. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5196-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
19
|
Wang Z, Zheng J, Ni Y, Men W, Tagami K, Uchida S. High-Performance Method for Determination of Pu Isotopes in Soil and Sediment Samples by Sector Field-Inductively Coupled Plasma Mass Spectrometry. Anal Chem 2017; 89:2221-2226. [DOI: 10.1021/acs.analchem.6b04975] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Zhongtang Wang
- Biospheric
Assessment for Waste Disposal Team, National Institute of Radiological
Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Jian Zheng
- Biospheric
Assessment for Waste Disposal Team, National Institute of Radiological
Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Youyi Ni
- Biospheric
Assessment for Waste Disposal Team, National Institute of Radiological
Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
- State
Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - Wu Men
- Biospheric
Assessment for Waste Disposal Team, National Institute of Radiological
Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Keiko Tagami
- Biospheric
Assessment for Waste Disposal Team, National Institute of Radiological
Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Shigeo Uchida
- Biospheric
Assessment for Waste Disposal Team, National Institute of Radiological
Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| |
Collapse
|