Radiochemistry最新文献

{"title":"Erratum to: Statistical Evaluation of the Tritium Content of Aquatic Ecosystems at NPP Sites","authors":"L. G. Bondarenko, V. N. Dushin, A. D. Sadykin, S. I. Shabalev","doi":"10.1134/S1066362224050265","DOIUrl":"10.1134/S1066362224050265","url":null,"abstract":"","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"784 - 784"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flowsheet Testing for Separation of Lutetium-177 from an Irradiated Ytterbium Target","authors":"E. V. Ambul,&nbsp;N. D. Goletskiy,&nbsp;A. A. Naumov,&nbsp;E. A. Puzikov,&nbsp;M. V. Mamchich,&nbsp;E. O. Zagladkin,&nbsp;N. A. Dedov,&nbsp;N. A. Semenova,&nbsp;S. A. Rodionov,&nbsp;N. V. Kovalev,&nbsp;A. M. Prokoshin,&nbsp;I. A. Ushakov,&nbsp;V. V. Zukau","doi":"10.1134/S1066362224050047","DOIUrl":"10.1134/S1066362224050047","url":null,"abstract":"<p>The results of an experiment to verify a complex technology for isolation of ¹⁷⁷Lu from an irradiated 1-g ytterbium target are presented. The main components of the experimental installation, which is mounted in a research hot cell, are described. These components include the extraction and separation of lutetium and ytterbium, the evaporation and preconcentration of ¹⁷⁷Lu, and its chromatographic purification. The feasibility of obtaining a pharmaceutical substance no carrier added lutetium-177 trichloride that meets the standards set by the European Pharmacopoeia has been confirmed.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"689 - 701"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water Quality Assessment and Evaluation of the Human Health Risk of Tap Water Use in the Karbala Governorate, Iraq","authors":"A. A. Hasan,&nbsp;I. T. Al-Alawy,&nbsp;H. A. Kadhim","doi":"10.1134/S1066362224050229","DOIUrl":"10.1134/S1066362224050229","url":null,"abstract":"<p>The availability of tap water sources is an important aspect of public health. Radon concentrations in water are an important source of water pollution. The water quality in seven Karbala sites in Iraq was evaluated using five parameters: temperature (<i>T</i>), total dissolved solids (TDS), pH, electrical conductivity (EC), and salinity (<i>S</i>). The ²²²Rn levels in the tap water samples were studied using a CR-39 detector. The concentrations of radon gas in the tap water samples were less than the accepted international limit of 11.1 Bq L^–1, and the annual effective dose was less than the required international value of 1 mSv year^–1. Therefore, the tap water used in all areas of the Karbala governorate is safe in terms of its ²²²Rn content. Water temperatures in Karbala City are below the Canadian Council of Ministers of the Environment (CCME) standard limit of 15°C, except for the Northern Drainage (Al-Shariea Site), where the temperature is above the limit because of the different intended sampling and the hot Iraqi environment. The TDS difference measured in tap water is greater than the water level limit of 500 mg L^–1 set by the World Health Organization (WHO) and CCME, and the measured pH values were within the standard ranges, 6.5–8.5 and 6.5–9, defined by the WHO and CCME, respectively. All water samples had electrical conductivities above the WHO requirement of 1000 S cm^–1 but below the CCME standard of 1500 S cm^–1. The content of primary cations (Ca²⁺, Mg²⁺, Na⁺, and K⁺) and heavy metals (zinc, copper, nickel, lead, and cadmium) was determined by flame atomic absorption spectroscopy (FAAS),. Primary cations follow the order Na⁺ &gt; K⁺ &gt; Ca²⁺ &gt; Mg²⁺, and heavy metal ions, the order Zn²⁺ &gt; Pb²⁺ &gt; Cu²⁺ &gt; Cd²⁺ &gt; Ni²⁺. The average readings for Pb²⁺ and K⁺ were greater than the optional safe levels recommended by the CCME and WHO.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"764 - 773"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Results of Monitoring the Radiation Situation in the Surveillance Zone of the Mayak Production Association in 2023","authors":"Yu. G. Mokrov,&nbsp;N. B. Isaeva,&nbsp;T. A. Yarkova,&nbsp;K. Yu. Mokrov","doi":"10.1134/S1066362224050205","DOIUrl":"10.1134/S1066362224050205","url":null,"abstract":"<p>The results of monitoring the contamination of air, soil, and plants in the region of location of the Mayak Production Association with ¹³⁷Cs, ⁹⁰Sr, and plutonium isotopes (^239,240Pu and ²³⁸Pu), obtained in 2023 by specialists of Mayak and of the Federal Service for Hydrometeorology and Environmental Monitoring of Russia, are reported. The volume activity (VA) of ¹³⁷Cs and ⁹⁰Sr in the surface layer of the atmosphere in the Mayak surveillance zone is lower than the limits prescribed by the sanitary regulations by 6–7 orders of magnitude, and the VA of ^239,240Pu and ²³⁸Pu is lower by 3–5 orders of magnitude. The radiation situation near the enterprise is stable, and the monitoring results obtained in 2023 correspond to the measurement results obtained in the previous years and confirm the previously revealed trends.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"743 - 751"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum to: “2+1B” Technetium-99m Tricarbonyl Complexes with N,N'-Bidentate Ligands and Methyl 14-Isocyano-3-methyltetradecanoate","authors":"A. E. Miroslavov,&nbsp;P. M. Kuz’menko,&nbsp;M. Yu. Tyupina,&nbsp;A. P. Sakhonenkova,&nbsp;G. V. Sidorenko,&nbsp;A. R. Kochergina,&nbsp;S. A. Krotov","doi":"10.1134/S1066362224050163","DOIUrl":"10.1134/S1066362224050163","url":null,"abstract":"","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"783 - 783"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1066362224050163.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photolysis of Uranium, Neptunium, and Plutonium Ions in Propionic Acid Solutions","authors":"A. M. Fedoseev,&nbsp;V. P. Shilov","doi":"10.1134/S1066362224050023","DOIUrl":"10.1134/S1066362224050023","url":null,"abstract":"<p>The photolytic reactions of U(VI), Np(VI, V), and Pu(VI) in 0.5–13 M C₂H₅COOH solutions were studied. Under UV irradiation, U(VI) is reduced to U(IV); Np(VI), to Np(V); Np(V), to Np(IV); and Pu(VI), to Pu(IV) and Pu(III). The photochemical reduction of U(VI) in concentrated propionic acid to U(IV) under UV irradiation is fast and complete. The Np(V) reduction proceeds with an induction period, after which the reaction accelerates. This is due to the fact that Np(V) weakly absorbs in the UV range. The appearance of Np(IV) leads to the formation of a Np(V)–Np(IV) cation–cation complex. The complex absorbs light, its energy excites Np(V), and Np(V) reacts with the acid. The photoreduction of Np(VI) proceeds without an induction period, because Np(VI) significantly absorbs UV light. Pu(VI) under UV irradiation is reduced to Pu(IV) and finally to Pu(III).</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"609 - 613"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Results of Monitoring the Condition of Special Industrial Reservoirs of Mayak Production Association in 2023","authors":"Yu. G. Mokrov,&nbsp;A. A. Posokhova","doi":"10.1134/S1066362224050187","DOIUrl":"10.1134/S1066362224050187","url":null,"abstract":"<p>The results of regular hydrological and radiochemical monitoring of open liquid radioactive waste storage reservoirs (OLRWSRs) of the Mayak Production Association in 2021–2023 in the period of reduced water content are summarized. Changes in the water level in OLRWSRs are, as a rule, seasonal with intermediate maxima in the spring flood period. The concentration of contaminants and radionuclides in water of the storage reservoirs shows virtually no seasonal variations and tends to decrease. The condition of all the OLRWSRs with respect to all the parameters monitored remains stable.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"725 - 731"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Extraction of U(VI), Th(IV), and Lanthanides(III) from Nitric Acid Solutions with Mixtures of Diphenyl-N,N-dioctylcarbamoylmethylphosphine Oxide and Lithium Bis[(trifluoromethyl)sulfonyl]imide","authors":"A. N. Turanov,&nbsp;V. K. Karandashev","doi":"10.1134/S1066362224050060","DOIUrl":"10.1134/S1066362224050060","url":null,"abstract":"<p>The extraction of U(VI), Th(IV), and lanthanide(III) ions with mixtures of diphenyl-<i>N</i>,<i>N</i>-dioctylcarbamoylmethylphosphine oxide (Ph₂Oct₂) and lithium bis[(trifluoromethyl)sulfonyl]imide (LiTf₂N) in dodecane containing 10% octanol was studied. A synergistic effect was discovered during the extraction of metal ions with such mixtures. When extracting Ln(III) from solutions of 3 M HNO₃, the <i>D</i>_Ln values in the system with Ph₂Oct₂–LiTf₂N are more than three orders of magnitude higher than when extracting with a solution of Ph₂Oct₂. The stoichiometry of the extracted complexes was determined, and the effect of HNO₃ concentration on the extraction of metal ions was studied. It has been established that actinide and lanthanide(III) ions are extracted with a mixture of Ph₂Oct₂ and LiTf₂N from nitric acid solutions via a cation-exchange mechanism.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"633 - 638"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gas Formation Processes during Radiolysis of Bituminous Materials","authors":"N. Guliyeva,&nbsp;I. Mustafaev,&nbsp;Z. Huseynova,&nbsp;F. Chichek","doi":"10.1134/S1066362224050175","DOIUrl":"10.1134/S1066362224050175","url":null,"abstract":"<p>The regular trends in the formation of gaseous products from petroleum bitumen of BN grade and bitumen mastic obtained from Absheron oil upon exposure to gamma radiation to the absorbed dose of up to 200 kGy were examined. The total radiation-chemical yield of gases does not exceed 0.43 molec/100 eV; i.e., bituminous materials are highly resistant to the generation of gaseous products.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 5","pages":"719 - 724"},"PeriodicalIF":0.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physicochemical Properties of Submicron 239Pu Aerosols","authors":"S. A. Sypko,&nbsp;V. E. Vvedensky,&nbsp;G. N. Bobov","doi":"10.1134/S1066362224040040","DOIUrl":"10.1134/S1066362224040040","url":null,"abstract":"<p>Materials and methods used for the analysis of physicochemical properties of submicron industrial aerosols are described. These approaches can be used at research centers and enterprises, including those of Rosatom, for studying the physicochemical properties of submicron and nanometer aerosols. The dispersity of industrial α-emitting submicron aerosols in air of working premises of Mayak Production Association was studied for ²³⁹Pu using the neutron-induced measurement method. The size distribution of ²³⁹PuO₂ nanoparticles in air of the oxalate precipitation department is the Pareto distribution. The result obtained can be used as a priori nanoparticle size distribution in the calculation of the ²³⁹Pu-caused internal irradiation dose load on the personnel of the oxalate precipitation department, RT Plant, Mayak Production Association, using the Bayesian method.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 4","pages":"425 - 437"},"PeriodicalIF":0.9,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}