![]() Latiffah Norddin Maizatul Akmam Mhd Nasir Phua Choo Kwai Hoeīiofertilizer has been identified as an alternative or complementary to chemical fertilizer to increase soil fertility and crop production in sustainable farming. Preparation of microorganism free carrier for biofertilizer product To optimize the plating parameters, the influences of current density, volume and pH of the electrolyte solution, shape, thickness, and surface area of the rhodium cathode, mode of cathode pretreatment, concentration of 57 Co and duration of electrolysis were investigated. (author)Įlectrodeposition of carrier-free 57Co on rhodium as an approach to the preparation of Moessbauer sourcesĬieszykowska, Izabela ZoLtowska, MaLgorzata Mielcarski, MieczysLawĮlectrodeposition of carrier-free 57 Co on a rhodium matrix as the first step of preparing Moessbauer sources was studied. The chemical separation of the carrier-free 67 Cu and the recovery of the 68 Zn target were also studied. The production rates of 67 Cu and contaminants were determined as a function of the maximum bremsstrahlung energies between 30 and 60 MeV. The preparation of pure, carrier-free 67 Cu using the 68 Zn(γ, p) reaction with an isotopically enriched 68 Zn(98.97%) target is described. ![]() Preparation of carrier-free 67Cu by the 68Zn(γ,p) reaction In clinical studies quantitative analysis Colloid was formed in very low amounts, and was completely removed by sterile filtration. Radiochemical purity was >96 % in all experiments. Means of the labelling yield were 22 % for the preparation using 150 μg of carrier (5 preparations), 80 % for the preparation using 15 μpg of carrier (10 preparations) and 91 % for the carrier free products (5 preparations). Radiochemical purity and radiochemical yield relied on various parameters such as concentration of carrier and reducing agent and reaction conditions (pH, reaction time, temperature). Clinical studies were performed in 29 patients according to a routine bone scanning protocol by injecting 700-800 MBq of the respective tracer and whole body imaging 3 h thereafter. Carrier free -EDTMP and -DPD were prepared according to instructions of the manufacturer. saline: R f colloid 0.00, perrhenate/pertechnetate and product 0.9) allowing rapid and efficient assessment of the product. Quality control was performed using radio-ITLC (Whatman SG acetone or ethanol: R f perrhenate/pertechnetate 0.87, colloid/product 0.05 phys. After cooling down to room temperature the labelling mixture was sterile filtrated (millipore 0.22 μm). Under vigorous stirring the reaction mixture was heated to 45 o C for 10 min. The solution was then transferred into a vial, containing 1 mg of EDTMP, 3.6 mg stannous(II)chloride and 10 mg ascorbic acid under inert conditions. ![]() 15 μg and 150 μg perrhenic acid respectively were added to -pertechnetate (>6 GBq in 3 ml phys. This study aimed to compare carrier-added -EDTMP with carrier-free -EDTMP and -DPD preparations in clinical routine. Visual image analysis is impaired due to high soft-tissue activity with currently available -EDTMP-kits. Mitterhauser, M.įull text: High uptake of bone-seeking radiopharmaceuticals in malignant bone lesions is a prerequisite for adequate bone scanning. ![]() International Nuclear Information System (INIS) ![]() Comparison of carrier-added EDTMP and carrier-free preparations of EDTMP and DPD ![]()
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