Comparison and Application of Alkali Fusion and High Pressure Acid Digestion Methods for the Analysis of Ultra Fine Powder Ceramics

파인 세라믹의 분석을 위한 알칼리 용융법과 고압 산분해법의 비교 및 응용

  • 임흥빈 (단국대학교 이과대학 화학과) ;
  • 한정란 (충남대학교 자연과학대학 화학과) ;
  • 이계호 (충남대학교 자연과학대학 화학과) ;
  • 이광우 (한국표준과학연구원 분석화학연구부) ;
  • 유택아명
  • Published : 19940600


For the analysis of fine ceramics, which is one of the new materials difficult to be dissolved, the methods of sample pretreatments such as alkali fusion and high pressure acid digestion were studied using inductively coupled plasma-atomic emission spectrometer(ICP-AES). For the Al2O3 powder sample, the results from high pressure acid digestion method showed better reproducibility than those obtained by alkali fusion technique. In the case of the analysis of SiC powder using the former method, impurities of the powder in the range of ppm were determined without matrix interference by removing Si as Si-F volatilization. Japan Certified Reference Materials (JCRM022 and JCRM023) were analyzed by this method for ultra fine powder and the results showed high accuracy and good reproducibility.



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