Journal of Radioanalytical and Nuclear Chemistry This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

A synthesis of novel phenol formaldehyde type dibenzo-18-crown-6 resin for Zn(II) and zinc isotope separation
AbstractA novel phenol formaldehyde crown ether adsorbent PS@DB18C6 for the separation of Zn isotopes was synthesized by grafting of dibenzo-18-crown-6 (DB18C6) onto polystyrene (PS) particles with phenol formaldehyde. In batch adsorption experiments, the highest isotope discriminations ( Δ66Zn  = 38.8, Δ68Zn  = 75.0) was obtained in 200 ppm Zn(II) acetone solution at 10 °C. Through chromatographic experiments, the separation coefficients of 5 m migration distance are 6.85 × 10–4 and 1.507  × 10–3. for the isotopic pairs of66Zn/64Zn,68Zn/64Zn respectively at 25  °C and the flow rate of feed so...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 29, 2023 Category: Nuclear Medicine Source Type: research

Purification of organic liquid waste containing sodium dodecylbenzensulfonate and oxalic acid using Y2O3 particles
This study explored the role of Y2O3 particles in the removal of organic matter (sodium dodecylbenzenesulfonate and oxalic acid). The total removal of organic matter was analyzed by considering the precipitation ratio, the particle-induced removal ratio, and the electrochemical oxidation ratio. When Y2O3 particles were added, the organic matter was effectively removed by precipitation and adsorption; however, the removal ratio by the EAOP decreased significantly. Furthermore, when using more than 40  g/L of Y2O3, it was found that the organic liquid waste could be treated without applying electrochemical oxidation through...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 29, 2023 Category: Nuclear Medicine Source Type: research

Electrochemical and thermodynamic properties of Pu(III) ions at the Mo electrode in LiCl –KCl eutectics
AbstractTo enhance the extraction of remaining fissile nuclides from spent nuclear fuel through pyrochemical reprocessing, the operational lifetime of such fuels can be extended, ultimately leading to increased cost efficiency and a reduction in the amount of radioactively contaminated waste generated by fast-neutron reactors. Understanding the electrochemical behavior of fissile nuclides in LiCl –KCl is pivotal to the success of molten salt electrorefining pyrochemical reprocessing. In this pursuit, a comprehensive study of Pu(III) salt was conducted to comprehend its electrochemical characteristics within molten chlori...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 29, 2023 Category: Nuclear Medicine Source Type: research

Chitosan-poly(imide dioxime) semi-interpenetrating network hydrogel for efficient uranium recovery from seawater
AbstractThe development of high-performance adsorbents is highly demanded in sustainable production of nuclear power. Herein, porous chitosan-poly(imide dioxime) (Cs-PIDO) hydrogel with semi-interpenetrating structure was prepared. Cs-PIDO-1 showed rapid kinetics, high adsorption capacity and excellent regeneration capability. Impressively, the capture speed of Cs-PIDO-1 reached 0.35  mg g−1 d−1 during the first 2-week extraction and its 4-week adsorption capacity was up to 5.75  mg g−1 in real seawater. The superior uranium harvesting performance originated from the cooperation effect of hierarchically porous s...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 28, 2023 Category: Nuclear Medicine Source Type: research

Radiation profile mapping and health impact assessment due to 222Rn exposure from groundwater in coal mining city Asansol, West Bengal, India
Abstract222Rn activity was measured in Asansol city and the adjacent mining area, West Bengal, India.222Rn concentrations were found to vary in the range 6.4 –145, 1080–91002, and 2070–180000 Bqm−3 in indoor air, soil gas, and groundwater, respectively. Total effective doses (TEDs) due to222Rn exposure were also estimated. In some sampling locations, TEDs appear to exceed the maximum permissible limit (100 µSvy−1).222Rn concentration variation contour mapping was prepared. Carcinogenic health risk factors (HRF) due to222Rn activity were also estimated. In some places, HRFs are found to be very high (>  perm...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 28, 2023 Category: Nuclear Medicine Source Type: research

Determination of the elemental composition of Mentha arvenis, Trigonella foenum-graecum L., and Cinnamomum tamala using instrumental neutron activation analysis technique
AbstractMentha arvenis (Mint),Trigonella foenum-graecum L. (Indian bay leaf), andCinnamomum tamala (fenugreek) were studied for trace elements using instrumental neutron activation analysis (INAA). Highest concentrations of Mn, Na and were quantified in Mint, Ca and Cl in bay leaves while fenugreek was found to be rich in Al, Co, Cr, Fe, Mg, Rb, Sc and Sr. K/Na ratios of greater than 1 predict the suitability of use of these herbs by hypertensive subjects. When compared with the recommended dietary allowance for an adult it was seen that most of the measured elements are essential in our daily diet and therefore these herb...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 28, 2023 Category: Nuclear Medicine Source Type: research

Oxygen determination in the Ti certified reference material ERM-EB090b by instrumental photon activation analysis
AbstractFor mechanical properties of titanium, oxygen content is important. In re-certifying O mass fraction in the Ti certified reference material ERM-EB090b, instrumental photon activation analysis (IPAA) was used as an alternative to the inert gas fusion technique. IPAA utilizes15O measurable only via the nonspecific annihilation gamma line 511  keV. Interferences from other radionuclides can be suppressed by optimizing photon energy and irradiation-decay-counting times, and for most interfering radionuclides corrected via their specific gamma lines. The present re-evaluated IPAA results for O content 3.56 ± 0.59Â...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 28, 2023 Category: Nuclear Medicine Source Type: research

Efficient immobilization of iodide from aqueous solution by Cu2O/Cu modified shungite
AbstractThe Cu2O/Cu modified shungite (ShC) absorbent (Cu2O/Cu-ShC) was synthesized by hydrothermal method, benefiting from the mineral backbone and Cu2O/Cu particles, Cu2O/Cu-ShC can remove  ~ 96% of I− within 60  min, the batch experiments showed that the I− adsorption process follows pseudo-second-order model and Langmuir model with maximum adsorption capacity of 10.99  mg/g. The high binding affinity between Cu+ and I− contributes effective removal of I− and excellent selectivity at high concentrations of competing ions. This work highlights the feasibility of Cu2O/Cu-ShC for the radioactive iodine separa...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 28, 2023 Category: Nuclear Medicine Source Type: research

Development and characterization of magnetic metal organic frameworks as novel highly-efficient scavengers for uranium capture
AbstractThe combination of metal  − organic frameworks (MOFs) and magnetic nanoparticles has been demonstrated their prospective for sequestration of heavy metal or radionuclides. In this work, five kinds of magnetic metal − organic framework including ZIF-67@Fe3O4, ZIF-8@Fe3O4, CuBTC@Fe3O4, MIL101(Fe)@Fe3O4, and MOF74@Fe3O4, was prepared and used as novel highly-efficient scavengers for the capture of U(VI) from aqueous environment. These magnetic nanocomposites before and/or after U(VI) capture were characterized by FTIR, SEM –EDS, XRD, TEM, BET, and XPS analyses. A batch technique was applied for the captu...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 28, 2023 Category: Nuclear Medicine Source Type: research

Quantification of lithium in hyper-stoichiometric lithium titanate by external (in air) particle induced gamma-ray emission (PIGE) method
AbstractLithium titanate is one of the crucial breeder materials in nuclear fusion reactors. High lithium atomic density is the most desired property for this application. In view of this, advanced lithium titanate (Li2+xTiO3+y) ceramics with varying stoichiometry of Li were synthesized at temperatures in the range of 900 –1100 °C and characterized using X-ray diffraction and scanning electron microscopy. External (in air) particle induced gamma-ray emission (PIGE) method was utilized for the quantification of lithium in the direct solid samples using14N (from air) as an external current normalizer. The method was vali...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 27, 2023 Category: Nuclear Medicine Source Type: research

Application of response surface methodology and quality by design to [68Ga]Ga-PSMA-11 preparation
In this study, the optimum conditions for the synthesis of [68Ga]Ga-PSMA-11 were determined for the first time using the Quality by Design (QbD). The response surface methodology was used to estimate the effect of input variables (PSMA-11 concentration, time, reaction temperature, and pH) on the responses calculated as the percentage of the radiochemical purity and the RR configuration. Since using QbD principles in the production of radiopharmaceuticals is not common, this study will help increase the number of applications in this field and ensure quality in radiopharmaceutical manufacturing, allowing decreased cost and ...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 27, 2023 Category: Nuclear Medicine Source Type: research

Risk assessment due to ingestion of uranium and radon in the drinking water samples of the Budhakedar region in Garhwal Himalaya, India
AbstractThe effects of uranium and its decay product radon in water are the most important concern in human health. In this paper, efforts have been made to measure and correlate the uranium (Using an LED Fluorimeter) and radon concentrations (Using SMART RnDuo) in the water samples from the Budhakedar region of the Garhwal Himalaya to assess the risk. The concentrations of uranium and radon in the water samples were found to vary between Below Detection Level (BDL) to 1.70  Bq L−1 (with an arithmetic mean of 0.15  Bq L−1) and 0.43 to 1.29  Bq L−1 (with an arithmetic mean of 0.75  Bq L−1) respectively. The ...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 27, 2023 Category: Nuclear Medicine Source Type: research

Fabrication and characterization of sealed source scandium-46 (46Sc) for industrial gamma scanning applications
AbstractNuclear grade aluminum capsules (AA-1070) was filled with 2  mg, 4 mg, 6 mg of target Sc2O3. The irradiation process of the capsule was performed in the Central Irradiation Position (CIP) G.A Siwabessy research reactor for 58.61  h. At the end of irradiation,46Sc radioactivity was 26.67; 57.81; 85.48  mCi/capsule. The SS-316 capsule swab test, its was found that46Sc radioactivity contamination was 2.198  Bq, 0.089 Bq and 0.218 Bq which were declared free of contamination. The gamma energy attenuation test for the thickness of the SS-304 plate, indicating that there is significant relationship between plate ...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 24, 2023 Category: Nuclear Medicine Source Type: research

A comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer sorbent based on manganese dioxide
AbstractThin-layer flat sorbents are used in analysis of alpha emitters allowing combine radionuclide separation and thin alpha source preparation into one stage. This work describes a comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer MnO2-CTA sorbent consisting of manganese dioxide coated onto cellulose triacetate. It was shown that pH dependences of Ra, U and Np sorption had S-type appearance with maximum in neutral and alkaline media that is typical for cation exchange mechanism of sorption. Sorption of Po and Pa was low over the whole pH range studied. Th showed unusual reverse S...
Source: Journal of Radioanalytical and Nuclear Chemistry - November 24, 2023 Category: Nuclear Medicine Source Type: research

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(Source: Journal of Radioanalytical and Nuclear Chemistry)
Source: Journal of Radioanalytical and Nuclear Chemistry - November 23, 2023 Category: Nuclear Medicine Source Type: research