Sonication in the Analysis of Hexavalent Chromium in Welding Fume

초음파 전처리에 의한 용접 흄 중 6가 크롬의 분석

  • Yoon, Chung-Sik (WonJin Institute for Occupational and Environmental Health) ;
  • Paik, Nam-Won (School of Public Health, Seoul National University) ;
  • Kim, Jeong-Han (Korea Institute of Industrial Technology) ;
  • Park, Dong-Uk (Department of Environmental Health, Korea National Open University) ;
  • Choi, Sang-Jun (School of Public Health, Seoul National University) ;
  • Kim, Shin-Bum (WonJin Institute for Occupational and Environmental Health) ;
  • Chae, Hyun-Byung (Korea Institute of Industrial Technology)
  • Received : 1999.04.12
  • Published : 1999.10.25


A study was conducted to compare three analytical methods for determination of hexavalent chromium in the welding fume. Precision and accuracy arc documented for colorimetric, ion chromatographic, and inductively coupled plasma-optical emission spectroscopic method. Evidence is presented that welding fume can affect the oxidation of trivalent chromium. A simple sonication extraction method, proposed in this study, instead of hot alkaline extraction has the advantage of minimizing the potential for chromium oxidation.


hexavalent chromium;welding fume;DPC;alkalIne extraction;sonication


Supported by : 한국산업안전공단 산업보건연구원


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