Journal of Radioanalytical and Nuclear Chemistry最新文献

{"title":"Analysis of radon exhalation from uranium tailings reservoir based on image recognition of surface cracks under wet–dry–freeze–thaw cycles","authors":"Xingwang Dai,&nbsp;Chengyan Yan,&nbsp;Yourui Jiang,&nbsp;Zhengxin Wu,&nbsp;Kai Liu,&nbsp;Yong Liu,&nbsp;Zhenghua Xu","doi":"10.1007/s10967-026-11060-2","DOIUrl":"10.1007/s10967-026-11060-2","url":null,"abstract":"<div><p>Thermal-moisture cycles induce damage to the soil cover of uranium tailings ponds and degrade their radon-resistant performance. In this study, laboratory wet-dry-freeze–thaw (WD-FT) cycles tests were conducted, surface cracking of the soil cover was quantified using digital image processing, and radon exhalation rates of the models were measured by the local static method. The SEM results showed that cumulative damage inside the soil caused negative growth of surface cracks. After taking the absolute value of crack changes, the degree of surface cracking increased monotonically, and the correlation coefficient with radon exhalation was greater than 0.95.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5731 - 5747"},"PeriodicalIF":1.7,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816289","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":"Electrochemical and thermodynamic properties of the molten U–Al/NaCl–CsCl system: a study","authors":"Alena Novoselova,&nbsp;Valeri Smolenski","doi":"10.1007/s10967-026-11063-z","DOIUrl":"10.1007/s10967-026-11063-z","url":null,"abstract":"<div><p>Electrochemical reduction of U(III) ions on a liquid reactive Al electrode in molten 0.34 NaCl–0.66 CsCl eutectic was investigated using cyclic voltammetry, open-circuit potentiometry and galvanostatic electrolysis. These data are interest for the application of molten salt electrolysis in pyrochemical reprocessing of spent nuclear fuel. Electrode reaction of uranium deposition was proceeded in one step with a significant depolarization with formation of UAl₃ and UAl₄ intermetallic compounds. Conditions for electrochemical alloy production were determined. The activity, solubility of uranium in liquid aluminum, and basic thermodynamic properties of uranium compounds in molten salt media were calculated.</p><h3>Graphical abstract</h3><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":"335 8","pages":"5749 - 5756"},"PeriodicalIF":1.7,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816290","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":"A hydrothermally synthesized La/ZrP-MOF with synergistic adsorption mechanism for fluoride ion adsorption","authors":"Chunhui Gong,&nbsp;Shuting Wang,&nbsp;Zuliang Wang,&nbsp;Aotian Gu,&nbsp;Mingjian Sang,&nbsp;Jiarui Meng,&nbsp;Peng Wang,&nbsp;Yi Yang","doi":"10.1007/s10967-026-11057-x","DOIUrl":"10.1007/s10967-026-11057-x","url":null,"abstract":"<div><p>Fluoride control is essential for radiotracer production in positron emission tomography and safe drinking water. This work reports a series of La/ZrP-MOF adsorbents with tunable La/Zr molar ratios for efficient fluoride capture. Among them, La/ZrP-MOF-3 exhibited the best adsorption performance, achieving a maximum fluoride ion adsorption capacity of 50.44 mg/g at pH 5, together with high selectivity and structural stability. The enhanced adsorption is attributed to a synergistic mechanism involving surface hydroxyl group exchange and strong lanthanum-fluorine coordination. This study provides valuable insights into the rational design of advanced MOF-based adsorbents for fluoride removal in both radiochemical and environmental applications.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5707 - 5720"},"PeriodicalIF":1.7,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816224","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":"Determination of 210Po in seawater by tellurium microprecipitation","authors":"Lina Ma,&nbsp;Longjiang Wang,&nbsp;Yan Ma,&nbsp;Hui Zhang","doi":"10.1007/s10967-026-11055-z","DOIUrl":"10.1007/s10967-026-11055-z","url":null,"abstract":"<div><p>²¹⁰Po can be rapidly determined in seawater samples by alpha spectrometry using tellurium (Te) microprecipitation. In this method, Po is first pre-concentrated using titanium trichloride (TiCl₃), redissolved in 3 M HCl, and filtered. Te microprecipitation was then applied to the supernatant. Replicate spiked samples and blank samples were analyzed to evaluate the performance of the procedure. For ²¹⁰Po in 1 L seawater samples, the minimum detectable activity concentration (MDC) was determined to be 0.5 mBq L⁻¹ with a counting time of 24h, and high recoveries (~ 89%) were achieved. This method is suitable for the rapid batch screening of ²¹⁰Po in environmental water samples.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5637 - 5643"},"PeriodicalIF":1.7,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816287","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":"Efficient preparation of 64Cu and radiolabeling of Nectin-4 antibody for esophageal cancer imaging","authors":"Xin Di,&nbsp;Xilian Wang,&nbsp;Zihao Wang,&nbsp;Xinyun Ge,&nbsp;Shuyu Lin,&nbsp;Jiaqiang Hou,&nbsp;Yan Yang,&nbsp;Zhi Yang,&nbsp;Zhou Lu,&nbsp;Fubo Ye,&nbsp;Ruiling Xu,&nbsp;Xiaoan Li","doi":"10.1007/s10967-026-11008-6","DOIUrl":"10.1007/s10967-026-11008-6","url":null,"abstract":"<div><p>⁶⁴Cu is a radioactive isotope used in positron emission tomography (PET) imaging, with promising applications in theranostics. However, the supply of ⁶⁴Cu is limited and requires significant personnel involvement. To enhance ⁶⁴Cu yield and minimize personnel exposure, we presented an automated method for producing high-specific-activity ⁶⁴Cu. Our approach involved the design of a novel electroplating device that employed ⁶⁴Ni as the target material, coupled with an automated system for target dissolution and transfer. Automated ion exchange chromatography was utilized to efficiently purify the dissolved ⁶⁴Cu, achieving a radionuclide purity of 99.9%. We utilized enriched ⁶⁴Ni (99.32%) and achieved an electroplating thickness of 60.2–62.2 mg/cm², resulting in a radioactive yield of over 300 mCi. Further synthesis of ⁶⁴Cu-NOTA-Nectin-4 was carried out, and it was applied to the imaging and biological distribution studies of esophageal squamous cell carcinoma, effectively targeting the tumor site. Leveraging the moderate half-life of ⁶⁴Cu and its production via medical cyclotrons, this approach enables extended imaging windows, precise tumor localization, providing new insights for the early diagnosis of esophageal cancer in clinical practice.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5323 - 5331"},"PeriodicalIF":1.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-026-11008-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816303","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}

{"title":"Thermoluminescence behavior of nanocrystalline LiCaBO3:Sm3+ under gamma irradiation","authors":"Muhammad Imran,&nbsp;Muhammad Kashif,&nbsp;Amjad Sohail,&nbsp;Ishrat Sultana,&nbsp;Ussama Abbas,&nbsp;Taqmeem Hussain,&nbsp;Samira Elaissi,&nbsp;Khalil Ahmad","doi":"10.1007/s10967-026-11036-2","DOIUrl":"10.1007/s10967-026-11036-2","url":null,"abstract":"<div><p>Thermoluminescence (TL) dosimetric properties of nanocrystalline LiCaBO₃:Sm³⁺ (0.3 mol%) synthesized by the solid-state reaction method and annealed at 700 °C/1h were investigated for the first time. XRD analysis confirmed the formation of an orthorhombic LiCaBO₃ phase with an average crystallite size of 19 nm, along with a minor secondary phase. FESEM images revealed porous and agglomerated hexagonal flake-like structures with an average thickness of ~ 34 nm, while EDS analysis verified the incorporation of Sm³⁺ ions. FTIR and Raman spectra showed the characteristic vibrational modes of (BO₃)³⁻ groups. UV–Vis analysis indicated a direct bandgap of 3.34 eV. The phosphor samples were irradiated using a ¹³⁷Cs γ-source in the dose range of 0–20 Gy. A prominent TL glow peak centered at 187 °C was observed within the suitable dosimetric temperature region. Glow curve deconvolution identified five trapping peaks, including a major dense trap near 181 °C. The kinetic parameters were determined using Chen’s peak shape method. The TL response exhibited good linearity up to 20 Gy, indicating the suitability of the synthesized phosphor for TL dosimetry applications.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5443 - 5457"},"PeriodicalIF":1.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816305","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":"Speciation distribution and thermodynamic simulation of uranium in groundwater of sandstone-type uranium deposits in Erlian Basin","authors":"Tang Chao,&nbsp;Meng Lishan,&nbsp;Xu Zenglian,&nbsp;Duan Ming,&nbsp;Liu Huajian,&nbsp;Wei Jialin","doi":"10.1007/s10967-026-10939-4","DOIUrl":"10.1007/s10967-026-10939-4","url":null,"abstract":"<div><p>The Erlian Basin is an important production area of paleovalley-type sandstone uranium deposits in China, and its complete recharge-runoff-discharge system provides favorable hydrogeological conditions for the formation of uranium mineralization. Groundwater is a key medium for the migration and enrichment of elements in sandstone-type uranium deposits, and the chemical speciation of uranium in water is of great significance for studying the migration and enrichment processes of uranium as well as for in-situ leaching mining and metallurgy. Taking hydrogeological borehole data from the exploration of the Luhai Mining Area as the foundation, the study adopts aqueous speciation and equilibrium thermodynamic data of common major sandstone-type uranium minerals and relevant dissolved components. On this basis, the chemical speciation and concentration of uranium in local groundwater were calculated. It also simulated the variation rules of uranium chemical speciation under different conditions such as pH value, temperature and CO₃²⁻ concentration, and constructed the Eh–pH phase diagram of the stable existing forms of uranium. The simulation results indicate that the uranium speciation in groundwater of Luhai Mining Area mainly exists in the forms of uranyl carbonate complexes such as UO₂(CO₃)₂²⁻, UO₂(CO₃)₃⁴⁻ and UO₂CO₃(aq). pH exerts a significant influence on both the types and contents of uranium chemical speciation. Variations in temperature and CO₃²⁻ concentration have a minor effect on the types of uranium chemical speciation but a considerable impact on their contents. The phase diagram of the U–C–O–H system shows that Uranium mainly exists in the form of U(Ⅵ) in oxidizing media, and its speciation changes with the variations in Eh, pH, ∑U and <span>(P_{{{text{CO}}_{{2}} }})</span> values. The results of this study will help clarify the migration and enrichment mechanisms of uranium in sandstone-type uranium deposits in Luhai area of Erlian Basin and provide a reference for identifying favorable metallogenic areas in the field.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5621 - 5635"},"PeriodicalIF":1.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816301","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":"Study on radiochemical analysis of 210Po in soil","authors":"Tang Hui,&nbsp;Jiang Qiao,&nbsp;Zhu Songlin,&nbsp;Yang Qiang,&nbsp;Gu Hong,&nbsp;Liu Pei,&nbsp;Hong Tao,&nbsp;Li Zehua,&nbsp;Leng Yangchun","doi":"10.1007/s10967-026-11044-2","DOIUrl":"10.1007/s10967-026-11044-2","url":null,"abstract":"<div><p>²¹⁰Po is a natural radioactive nuclide, belonging to the uranium series decay product, with high toxicity alpha radiation characteristics, widely present in environmental media such as soil. It poses a potential internal radiation risk to human health, therefore accurate monitoring of ²¹⁰Po in soil is of great significance for public health and radiation environment regulation. At present, there is a lack of standardized analysis methods for ²¹⁰Po in soil media both domestically and internationally, resulting in inconsistent quality of monitoring data. Based on extensive literature research and multi institutional experimental verification, this study proposes a soil ²¹⁰Po analysis method that combines wet acid digestion and spontaneous deposition followed by alpha spectroscopy. The HNO₃ + HCl + HF (3:2:1) mixed acid system is used to optimize key parameters such as digestion temperature (160 °C), self deposition acidity (0.2–0.5 mol/L HCl), and ascorbic acid dosage (0.5 g). The method has been validated by 8 radiation monitoring institutions in China, showing a method detection limit (MDL) of 1.0 × 10⁻³ Bq/g and a limit of quantification (LOQ) of 4.0 × 10⁻³ Bq/g, a precision (RSD) of 2.5–14% and a spike recovery rate of 107–108% for method accuracy evaluation. It has good accuracy, repeatability, and universality, and is suitable for daily environmental monitoring needs.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5601 - 5611"},"PeriodicalIF":1.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816225","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":"Application of stratigraphic cores from uranium mining areas as a radon source in portable radon chambers","authors":"Xingyu Tian,&nbsp;Xiongjie Zhang,&nbsp;Liuqing Pang,&nbsp;Wenyi Li,&nbsp;Chuandong Zhu","doi":"10.1007/s10967-026-11052-2","DOIUrl":"10.1007/s10967-026-11052-2","url":null,"abstract":"<div><p>Conventional radon chambers are difficult to transport for on-site calibration of seismic radon monitors. We developed a portable radon chamber using license-free natural uranium ore cores as a radon source. A dual-pump system adjusted radon concentration from 800 to 4700 Bq/m³ via flow rate control. The discrepancy between measured and theoretical concentrations was within 5% at lower flow rates and remained below 10% across the full operational range. Concentration uniformity (normalized error &lt; 1) and 24-h stability (&lt; 10% deviation) were demonstrated. Field application reduced systematic errors and improved instrument consistency. This method provides a cost-effective, portable, and adjustable calibration solution.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5587 - 5599"},"PeriodicalIF":1.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816300","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":"LR-115 passive nuclear track detectors for indoor radon-222 and thoron-220 concentration estimation: a systematic review (PRISMA) of physical foundations, calibration methodologies and dosimetric frameworks","authors":"Marcel Oswaldo Méndez-Mantuano,&nbsp;Tony Jesús Viloria-Ávila","doi":"10.1007/s10967-026-11056-y","DOIUrl":"10.1007/s10967-026-11056-y","url":null,"abstract":"<div><p>This systematic review, carried out under the PRISMA 2020 protocol, examines the physical principles, calibration approaches and dosimetric frameworks that underpin the use of LR-115 type II passive nuclear track detectors for indoor radon-222 and thoron-220 measurement. Out of 847 records retrieved from five bibliographic databases and complementary institutional sources, 62 publications were included in the final synthesis. Twin-chamber configurations, etching kinetics, reported calibration factors and the UNSCEAR and ICRP dose conversion coefficients are critically compared. Twin-cup LR-115 dosimeters paired with traceable calibration emerge as a sound compromise between cost, sensitivity and radon/thoron discrimination for large residential surveys.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"335 8","pages":"5035 - 5048"},"PeriodicalIF":1.7,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816326","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}