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Kodaka, Noriyasu; Yamamoto, Masahiko; Kuno, Takehiko; Takamura, Yuzuru*
no journal, ,
The K, Ca, Mg, Na, Fe, Cr, and Ni in plutonium (Pu) nitrate solution were determined by liquid electrode plasma optical emission spectrometry (LEP-OES). Since the emission line of Pu interfered the emission line of the target element in ICP-OES, removal of Pu was necessary in advance to the measurement. Contrastly, Pu emission lines were not observed, when Pu nitrate solution was measured by LEP-OES. However, emission of K, Ca, Mg, Na, Fe, Cr, and Ni was observed. Therefore each element were determined. It was found that trace elements in Pu nitrate solution can be quantified by LEP-OES without the Pu separation.
Sasaki, Yuji; Morita, Keisuke; Matsumiya, Masahiko*
no journal, ,
The separation and isolation of Dy from Nd magnet is important task for the rare-metal recycles. These lanthanide metal ions have normally low separation factors because of same oxidation state and similar ionic radii. Therefore, multi-step extractions are indispensable in order to increase mutual separation factors. We performed the batchwise multi-step extraction for the mutual separation of Nd and Dy using diglycolamide extractant. The analytical results will be shown in the poster presentation.