Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Preparation of a CRM for QA/QC in dioxin analysis and inter-laboratory study

다이옥신 정도 관리용 CRM 제조와 실험실간 비교평가

  • Yu, Byeong-Woon (School of Environmental Science and Engineering, Pohang University of Science and Technology) ;
  • Moon, Young-Hoon (School of Environmental Science and Engineering, Pohang University of Science and Technology) ;
  • Kim, Min-Kwan (School of Environmental Science and Engineering, Pohang University of Science and Technology) ;
  • Kyoung, Jong-Dai (School of Environmental Science and Engineering, Pohang University of Science and Technology) ;
  • Chang, Yoon-Seok (School of Environmental Science and Engineering, Pohang University of Science and Technology)
  • 유병운 (포항공과대학교 환경공학부) ;
  • 문영훈 (포항공과대학교 환경공학부) ;
  • 김민관 (포항공과대학교 환경공학부) ;
  • 경종대 (포항공과대학교 환경공학부) ;
  • 장윤석 (포항공과대학교 환경공학부)
  • Received : 2003.12.16
  • Accepted : 2004.02.17
  • Published : 2004.04.25
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Abstract

Dioxin CRM for QA/QC was prepared with fly ash collected from municipal waste incinerator. With that CRM inter-laboratory test was carried out. The collected fly ash was conducted several homogeneity steps including sievings and mixing. Homogeneity test and estimation of uncertainty was performed by one-way ANOVA based on ISO guide 35. Compared concentrations of fly ash of participants to CRM values, PCDDs value was lower than that of CRM in almost participants, and showed higher PCDFs concentration than that of CRM. Although there is a small difference in PCDD/Fs concentrations with congeners of extract, the result was close to mean value.

생활 폐기물 소각장에서 채취한 비산재를 이용하여 다이옥신 정도 관리용 인증표준물질(CRM)을 제조하였고 이를 이용하여 실시된 실험실 간 비교 평가가 실시되었다. 채취된 비산재는 여러 번의 균질화 과정을 거쳤으며 균질성 시험은 ISO Guide 35에 따른 일원분산분석을 통해 이루어졌고 제조된 CRM에 대한 불확도 평가를 수행하였다. 각 기관의 비산재 농도값과 CRM 농도값을 비교 해 본 결과 polychlorinated dibenzo-p-dioxins (PCDDs)는 대부분의 기관이 CRM에 비해 낮은 값을 보였으며 polychlorinated dibenzofurans (PCDFs)는 대부분의 기관에서 높은 값을 보였다. 추출액의 경우 이성체 별로 정도의 차이는 있지만 대부분의 기관에서 평균에 가까운 값을 나타냈다.

Keywords

References

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