Mathew Snow, Christopher Gilligan, Justin T. Cooper, Kolby Olney, Jacob Brookhart, Tommy Holschuh, Darrell Knight, David L. Chichester
{"title":"Optimizing sol–gel surrogate nuclear explosive debris for laboratory analysis applications","authors":"Mathew Snow, Christopher Gilligan, Justin T. Cooper, Kolby Olney, Jacob Brookhart, Tommy Holschuh, Darrell Knight, David L. Chichester","doi":"10.1007/s10967-025-09988-y","DOIUrl":"10.1007/s10967-025-09988-y","url":null,"abstract":"<div><p>Surrogate nuclear explosive debris (SNED) is critical to post-detonation nuclear forensic science. We report a systematic study optimizing the dissolution characteristics of sol–gel based SNED. Total carbon analyses of sol–gels indicate elimination of unreacted carbon from residual ethyl groups when samples are annealed above 500 °C. Sol–gel SNED annealed between 600 and 800 °C dissolves similarly to Trinitite when using both HCl/HF and HNO<sub>3</sub>/HF based dissolution approaches. Taken together, these data demonstrate the ability to produce highly tunable, realistic SNED samples that can be employed to support future laboratory analysis applications.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2095 - 2102"},"PeriodicalIF":1.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Meng Ruonan, Xia Chengcheng, Wang Zhengyong, Liu Guodong, Meng Yuchuan, Chen Yu
{"title":"Spatiotemporal pattern and influencing factors of stable isotopes in different waters on the transition zone between the Qinghai–Tibet Plateau and Chengdu plain","authors":"Meng Ruonan, Xia Chengcheng, Wang Zhengyong, Liu Guodong, Meng Yuchuan, Chen Yu","doi":"10.1007/s10967-025-09982-4","DOIUrl":"10.1007/s10967-025-09982-4","url":null,"abstract":"<div><p>Based on the water samples collected from Minjiang river, the spatiotemporal pattern of stable isotopes in different waters and the influencing mechanisms were investigated in the article. Our findings suggested that the stable isotopes of oxygen and hydrogen in waters exhibited obvious spatiotemporal variations influenced by temperature and precipitation amount since precipitation is an important recharge source for Minjiang river water and that the ‘latitude effect’ was observed in the river water whereas the ‘elevation effect’ was obscured. The results of this study will be helpful in understanding the hydrological cycle and promoting the scientific management of water resources in basins at east transition of Qinghai–Tibet Plateau.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1247 - 1261"},"PeriodicalIF":1.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dmitrii Grozdov, Vladimir Galustov, Inga Zinicovscaia
{"title":"Modernization on the Regata facility (IBR-2 reactor) designed for instrumental neutron activation analysis","authors":"Dmitrii Grozdov, Vladimir Galustov, Inga Zinicovscaia","doi":"10.1007/s10967-025-10014-4","DOIUrl":"10.1007/s10967-025-10014-4","url":null,"abstract":"<div><p>The hardware of the pneumatic transfer system used to perform instrumental neutron activation analysis at the IBR-2 reactor (JINR, Dubna) has undergone a modernization. For this purpose, the new control panel, representing a desktop program for Windows, was developed. In terms of the gamma spectrometry automation outdated sample changers were replaced by four KUKA KR10 R1100 manipulators with all necessary controllers. Additionally, to use fixed geometry of irradiated samples during induced activity measurement special containers and a protective box for sample repacking were developed.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2435 - 2442"},"PeriodicalIF":1.5,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-025-10014-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jan Klouda, Sara L. Adelman, Kelly E. Aldrich, Stosh A. Kozimor, Mila Nhu Lam, Laura M. Lilley, Veronika Mocko, Sara L. Thiemann
{"title":"Actinium purification from elemental components of stainless steel and aluminum","authors":"Jan Klouda, Sara L. Adelman, Kelly E. Aldrich, Stosh A. Kozimor, Mila Nhu Lam, Laura M. Lilley, Veronika Mocko, Sara L. Thiemann","doi":"10.1007/s10967-024-09813-y","DOIUrl":"10.1007/s10967-024-09813-y","url":null,"abstract":"<div><p>Radioisotopes of actinium are valuable because of their potential use in the medical industry. Actinium-225 shows promise for treating disease—like cancer—via targeted alpha therapy (TAT), and the longer-lived actinium-227 is the parent of two radionuclides with potential application in TAT radiopharmaceuticals, thorium-227 and radium-223. Continuing progress in the development of these medical applications requires robust and diverse methods for extracting and purifying actinium from a wide range of matrices. To define the strengths and limitations of separation methods commonly employed in actinium processing, we characterized the performance of ion exchange and extraction chromatographic steps for removing contaminants found in stainless steel (chromium, iron, nickel, and silicon) and aluminum from actinium-227. While AG-MP1 anion exchange resin with HCl<sub>(<i>aq</i>)</sub> successfully removed iron, cation exchanger AG 50W-X8 removed most other contaminants. The most persistent contaminant was aluminum, which was removed using a DGA Normal extraction resin. These results are presented within the context of applying that methodology toward actinium purification strategies.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1275 - 1285"},"PeriodicalIF":1.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Igor V. Smirnov, Maria D. Karavan, Timofey S. Aleksandrov, Alexander A. Brechalov, Ekaterina S. Babitova, Vladislav V. Timoshenko, Yuri E. Ermolenko
{"title":"Kinetics study of fission products’ extraction with attenuated total internal reflection IR spectroscopy","authors":"Igor V. Smirnov, Maria D. Karavan, Timofey S. Aleksandrov, Alexander A. Brechalov, Ekaterina S. Babitova, Vladislav V. Timoshenko, Yuri E. Ermolenko","doi":"10.1007/s10967-025-10012-6","DOIUrl":"10.1007/s10967-025-10012-6","url":null,"abstract":"<div><p>A new method for extraction kinetics studying in a biphasic system using time-lapse recording of IR absorption spectra in the attenuated total internal reflection (ATR IR) geometry is developed. The method is examined by studying the extraction process of europium, yttrium and cesium ions with various extractants both from acidic and carbonate media. The mechanism of step-wise coordination with functional groups of the ligand is proposed. The extraction kinetics constants are calculated for the extraction systems with europium. The main advantages of the new method are miniaturization and rapidity, compared to classical methods.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 4","pages":"2729 - 2739"},"PeriodicalIF":1.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143888675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. T. M. Ito, S. Takahashi, C. Kato, S. Fukutani, T. Matsumura, T. Fujii
{"title":"Solvent extraction of tin in nitric acids: evaluation of multiple extractants","authors":"K. T. M. Ito, S. Takahashi, C. Kato, S. Fukutani, T. Matsumura, T. Fujii","doi":"10.1007/s10967-025-10003-7","DOIUrl":"10.1007/s10967-025-10003-7","url":null,"abstract":"<div><p>In this study, the solvent extraction behavior of tin (Sn), specifically <sup>126</sup>Sn, from high-level radioactive waste was evaluated using six different extractants in a HNO<sub>3</sub> system. Among the tested extractants, <i>N,N</i>-Didodecyl-2-hydroxyacetoamide <b>(</b>HAA) exhibited higher efficiency, still not sufficient for industrial implementation. In systems where HCl was added to HNO<sub>3</sub>, both tributyl phosphate (TBP) and <i>N,N,N,N’</i>-tetra-2-ethylhexyl diglycolamide (TEHDGA) achieved <i>D</i><sub>Sn</sub> values greater than 1 at > 1 M HCl. However, due to practical challenges in industrial applications, HAA extraction in HNO<sub>3</sub> systems, particularly at low Sn concentrations (0.0008 M), may provide a more effective solution for Sn recovery.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2467 - 2475"},"PeriodicalIF":1.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Waqar Un Nisa Khadim, Mumtaz Khan, Lubna Ghani, Niu Jie
{"title":"Separation of 125Sb and 60Co from liquid radioactive waste by activated carbon: isotherm and kinetics studies","authors":"Waqar Un Nisa Khadim, Mumtaz Khan, Lubna Ghani, Niu Jie","doi":"10.1007/s10967-025-09999-9","DOIUrl":"10.1007/s10967-025-09999-9","url":null,"abstract":"<div><p>The aim of this study is to remove <sup>125</sup>Sb and <sup>60</sup>Co from low-level liquid radioactive waste using Analytical Grade Activated Carbon (AGAC) as an adsorbent from a research reactor coolant waste. AGAC is a highly porous adsorbent used to remove metals/pollutants from water. The AGAC was characterized using SEM, EDX, and FT-IR. Experimental studies included Point of Zero Charge, fixed bed, and batch studies. In the fixed bed study, breakthrough curves were determined for different bed heights and flow rates to optimize the sorption capacity of the adsorbent. Cycle III of AGAC showed the highest breakthrough capacity at 964.28 Bq/g for <sup>125</sup>Sb and 2530 Bq/g for <sup>60</sup>Co with specific conditions. The Thomas model was found to be the best fit for the fixed bed study results. In the batch study, various parameters such as contact duration, adsorbent dose, pH, temperature, and initial activity were optimized using isotherm and kinetic models. The Freundlich Isotherm Model and Pseudo 2nd Order kinetic model were the best fits for <sup>125</sup>Sb and <sup>60</sup>Co adsorption with AGAC, respectively, based on the R<sup>2</sup> values obtained.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"1967 - 1985"},"PeriodicalIF":1.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chol-Hun Yun, Pyong-Hun Kim, Chol-Jin Jo, Un-Hui Jang
{"title":"Determination of uranium in seawater using chemical co-precipitation-ionic liquid electrodeposition by ICP-OES","authors":"Chol-Hun Yun, Pyong-Hun Kim, Chol-Jin Jo, Un-Hui Jang","doi":"10.1007/s10967-025-09989-x","DOIUrl":"10.1007/s10967-025-09989-x","url":null,"abstract":"<div><p>In this paper, we report a new combined method of chemical coprecipitation-ionic liquid electrodeposition for the determination of trace uranium in seawater. The procedure involves coprecipitation of trace uranium on Fe(OH)<sub>3</sub> upon addition of ferric chloride and electrodeposition of uranium in EMIMBF<sub>4</sub> to determine by inductively coupled plasma optical emission spectrometry(ICP-OES). The solution, which ferric chloride was added to 1 L of seawater sample and adjusted the pH to 4, was placed at 80 °C for 30 min to coprecipitate uranium with iron hydroxide. The precipitate was then dissolved in nitric acid and electrodeposited in EMIMBF<sub>4</sub> to determine uranium by ICP-OES. The coefficient of diffusion (D) of electrodeposition of U (VI) on platinum electrode in EMIMBF<sub>4</sub> was evaluated, which was 3.31 × 10<sup>−9</sup> cm<sup>2</sup>/s. The electrochemistry experiments indicated that the reduction of U (VI) at platinum electrode in EMIMBF<sub>4</sub> was a quasi-reversible single step two-electron transfer. The percent of chemical coprecipitation recovery of U (VI) was 98.9% and recovery in electrodeposition was 99.5%. Using combine of two methods can determined trace uranium in seawater.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2177 - 2184"},"PeriodicalIF":1.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lanfang Hua, Yingying Zhan, Huiqi Fan, Jie Fang, Guangtuan Huang
{"title":"In-situ synthesis process of birnessite to remove Co2+ from the simulated radioactive wastewater","authors":"Lanfang Hua, Yingying Zhan, Huiqi Fan, Jie Fang, Guangtuan Huang","doi":"10.1007/s10967-025-09998-w","DOIUrl":"10.1007/s10967-025-09998-w","url":null,"abstract":"<div><p>In this study, the in-situ synthesis of birnessite successfully removed Co<sup>2+</sup> from simulated radioactive wastewater. The optimal reaction conditions were determined by single-factor experiments: a reaction time of 60 min, a pH of 11, a reaction temperature of 50°C and a Mn<sup>2+</sup>/Co<sup>2+</sup> molar ratio of 7:1. The removal rate of Co<sup>2+</sup> reached 99.97%. XRD confirmed birnessite as the precipitate. FTIR, precipitate dissolution and XPS analyses indicated that the removal mechanisms of Co<sup>2+</sup> included hydroxide precipitation (0.36%), adsorption (4.70%) and ion exchange (94.94%). In conclusion, the in-situ synthesis of birnessite for Co<sup>2+</sup> removal is promising for the treatment of radioactive wastewater.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2151 - 2162"},"PeriodicalIF":1.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spatiotemporal evolutionary patterns of mineral dissolution and precipitation (formation) amount in acid in situ leaching of uranium","authors":"Xuefeng Liu, Jinhui Liu, Yongguo Xing, Yihan Yang, Ruyi Wang, Ting He","doi":"10.1007/s10967-025-10005-5","DOIUrl":"10.1007/s10967-025-10005-5","url":null,"abstract":"<div><p>In the acid in-situ leaching process of uranium, mineral dissolution and precipitation affected ore-bearing layer permeability, limiting uranium extraction efficiency. To explore mineral dissolution/precipitation, an injection-pumping pathway in the Bayan Ula C12 mining area was monitored with three wells. Leaching solution composition was collected for 1 year and simulated using PHREEQC. Core analysis validated the simulation. Feldspar and minor iron minerals were dissolved, while gypsum and clay minerals (illite, kaolinite) precipitated. Dissolution decreased, and precipitation increased along the flow direction. Gypsum precipitation and feldspar alteration were identified as the primary causes of pore blockage. The simulation results were consistent with the core analysis.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 4","pages":"2949 - 2962"},"PeriodicalIF":1.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-025-10005-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143888574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}