Solid-phase extraction of plutonium(IV) an americium(III) using N-benzoylphenylhydroxylamine and its derivativesстатья
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Дата последнего поиска статьи во внешних источниках: 20 июня 2016 г.
Аннотация:The recovery and separation of plutonium(IV) and americium(III) by solidphase extraction(SPE) on alkylated silica gel S16 modified with Nbenzoylphenylhydroxylamine (BPHA) and with its derivatives was studied. BPHA was modified by introducing into the pposition of the phenyl ring of electronactive substituents that differ in their hydrophobicity: CH3, Ph, Cl, F, and NO2. The SPE of plutonium(IV)and americium(III) was studied in the range of acidities from pH 8 to 1 M HNO3. The recovery and separation of these elements was shown to depend on the nature of the substituent, aqueous acidity, and the preparation of S16 to SPE experiments