The Development of Continuous Flow Method Through Microwave Oven for the Analysis of Metal Oxides in Water by ICP-AES

ICP-AES에 의한 수중의 금속 산화물 직접분석을 위한 연속흐름 Microwave 용해장치 개발 연구

  • 김연두 (충남대학교 화학과) ;
  • 이계호 (충남대학교 화학과) ;
  • 김형승 (충남대학교 화학과) ;
  • 김동수 (충남대학교 화학과) ;
  • 박광규 (한국전력공사 기술연구원 화학환경연구실)
  • Published : 19940800


The method described offers rapid and efficient sample preparation using on-line microwave digestion of metal oxides in water sample with direct elemental detection by ICP-AES. The open tubing digestion system(OTD) and the restraint tubing digestion system(RTD) for flow injection(FI) were designed and tested to find the optimum conditions. Comparison of OTD and RTD indicated that RTD was 3 times faster on the digestion time, and 10 times higher on sample mass. Finally, the results of RTD agree well with those by conventional microwave open vessel in all cases and show good precision; Fe and Cu show good with about 5% of RSD, while Zn and Co more or less than 10% RSD.



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