Development of analytical technique for radioactive material using microfludic device

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

Target elements are separated and measured in a glove box (GB) to prevent internal exposure when radioactive material is analyzed. Although liquid-liquid solvent extraction is used for the separation, liquid waste reduction is required due to the organic solvents. Also, an large apparatus such as ICP-OES requires high cost due to the designing sepcific GB for installation. Therefore, small apparatus is desired. In this study, we have been focused on microchemical chip (MCC) and liquid electrode plasma (LEP). Reduction of liquid radioactive waste is expected becuase solvent extraction can be performed in microchannel by using MCC. The emission spectroscopy using LEP (LEP-OES) requires neither plasma gas nor cooling water, and the device is small enough to installed in normal GB. We will report the results of the Pu measurement system combining MCC with liquid scintillation counter, and elemental analysis of liquid radioactive waste by LEP-OES.