WitrynaJ.W. Dawson, M. Phillips, in Nuclear Fuel Cycle Science and Engineering, 2012 12.3.4 Control of reactivity. The impurity content of the moderator is controlled by the purification process referred to in Section 12.3.3.To ensure that the moderator itself is not disproportionate in reducing system reactivity by the capture of neutrons, a limit is … Witryna18 lut 2024 · The influence of Ta impurity on deuterium retention in W monocrystals after gas saturation is demonstrated. The tantalum impurity significantly decreases the solubility of deuterium from the gas phase in tungsten at the saturation temperature of 625 K with increase in the impurity concentration. REFERENCES
Impurity Definition & Meaning - Merriam-Webster
WitrynaImpurities can be classified into the following categories: • Organic impurities (process- and drug-related) • Inorganic impurities • Residual solvents Organic impurities can arise during the manufacturing process and/or storage of the new drug substance. They can be identified or unidentified, volatile or non-volatile, and include: Witrynahydrochloride, multiply the peak area of metformin impurity A obtained with reference solution (a) by a stoichiometric conversion factor of Mr A / Mr B = 0.7 Note: Molecular masses used for the calculation of the stoichiometric conversion factor in this leaflet: Mr A: metformin impurity A present as free base: C2H4N4 --- 84.0 g/mol platform oradea
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Witryna28 lut 2024 · An unknown impurity at the level of 0.62% was observed during routine analysis of Terbutaline Sulfate drug substance. The impurity was isolated using preparative HPLC and the impurity was comprehensively characterized with the help of spectroscopic studies. Witrynaimpurity: [noun] something that is impure or makes something else impure. WitrynaImpurities: Process impurities, synthetic by-products, ance of particles, changes in particle form, size, shape, impurities associated with the adhesive (e.g., residual mono-habit, or aggregation) of the active drug substance that mers), residual solvents (see Residual Solvents 〈467〉), heavy may occur during the course of product … platformopsとは