Review

  • Journal of Nuclear Fuel Cycle and Waste Technology
  • Volume 7(1); 2009
  • Article

Journal of Nuclear Fuel Cycle and Waste Technology 2009;7(1):17-23. Published online: Mar, 30, 2009

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Determination of Radiolysis Products of DHOA by GC/MS

  • Han-Beom Yang ; Eil-Hee Lee ; Jae-Kwan Lim ; Dong-Yong Chung ; Kwang-Wook Kim and Jong-Seung Kim
Abstract

Dihexyloctanamide(DHOA) was used as an extractant or phase modifier with the diamide extractants in a solvent extraction process for a radioactive liquid waste treatment. The degradation compounds of the DHOA extractant, irradiated with 60Co gamma ray, were octanoic acid and dihexylamine which are identified by a Fourier transform infrared(FT-IR) and gas chromatograph/mass spectrometer(GC/MS) analysis, and determined by the GC/MS with selected ion monitoring(SIM) mode. Retention behavior of octanoic acid, tridecane (internal standard) and dihexylamine in total ion chromatogram (TIC) were 8.65 min., 9.79 min., and 10.27 min., respectively. With increasing the absorbed dose of the γ-ray irradiated DHOA, the concentration of octanoic acid was decreased and that of dihexylamine was increased.

Keywords

DHOA,Radiolysis,Dihexylamine,Octanoic acid,GC/MS,DHOA,방사선 분해,Dihexylamine,Octanoic acid,GC/MS