Direct Determination of Molybdenum in Simulated Nuclear Spent Fuels by Inductively Coupled Plasma Atomic Emission Spectrometry

유도결합플라스마 원자방출분광법을 이용한 모의 사용후핵연료 중 몰리브덴 분석

  • Choi, Kwang Soon (Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute) ;
  • Lee, Chang Heon (Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute) ;
  • Park, Soon Dal (Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute) ;
  • Park, Yang Soon (Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute) ;
  • Joe, Kih Soo (Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute)
  • 최광순 (한국원자력연구소 원자력화학연구팀) ;
  • 이창헌 (한국원자력연구소 원자력화학연구팀) ;
  • 박순달 (한국원자력연구소 원자력화학연구팀) ;
  • 박양순 (한국원자력연구소 원자력화학연구팀) ;
  • 조기수 (한국원자력연구소 원자력화학연구팀)
  • Received : 2000.02.21
  • Published : 2000.06.25

Abstract

The SIMFUEL which composition is similar to PWR nuclear spent fuels was dissolved with a acid digestion bomb. An analytical conditions of ICP-AES for the direct determination of molybdenum in the uranium matrices without separation process were investigated. Based on the effect of uranium on molybdenum intensity. the most optimum wavelengths of molybdenum were found to be 202.030 and 203.844 nm. However, the method of standard additions is applied to overcome the effects of changing background caused by analyzing the sample solutions containing high concentration of uranium and the standard calibration solutions. The relative error of two methods, direct and indirect measurements with cation exchange resin separation procedures, was less than 5%. Therefore it was possible for this procedure to directly measure molybdenum in uranium matrices without separation. And this method was also applied to the determination of several percent of molybdenum in a U-Mo alloy.

Keywords

SIMFUEL;U-Mo alloy;Direct determination;Molybdenum;ICP-AES

Acknowledgement

Supported by : 과학기술부

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