Trace element analysis in plutonium nitrate solution by liquid electrode plasma optical emission spectrometry

Kodaka, Noriyasu; Yamamoto, Masahiko   ; Kuno, Takehiko ; Takamura, Yuzuru*

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.