인증표준물질(NIST SRM 1589a)을 이용한 혈액 중 다이옥신 분석방법

Analytical method of PCDDs/PCDFs in blood using NIST SRM 1589a

  • 신선경 (국립환경과학원 환경보건안전부 제품안전성평가과) ;
  • 박석운 (국립환경과학원 환경보건안전부 제품안전성평가과) ;
  • 김태승 (국립환경과학원 환경안전진단부 토양지하수연구과)
  • 투고 : 2005.09.22
  • 심사 : 2005.10.22
  • 발행 : 2005.12.26

초록

최근 관심이 되고 있는 혈액 중 다이옥신 분석방법을 마련하기 위해 미국 NIST의 혈청 인증표준물질 1589a를 이용하여, 캐나다, 일본 등 선진국의 혈액 중 다이옥신 분석방법을 비교 검토하고, 우리나라 실정에 적합한 혈액 중 다이옥신 분석방법(안)을 제시하였다. 제안된 분석방법은 추출과정에서 유분 등 지방의 효과적인 제거를 위한 알칼리 분해 추출 후 기존의 다이옥신 전처리방법과 유사한 방법으로 정제하여 두 종류의 컬럼을 사용하는 분석방법이다. 또한, 혈청 인증표준물질과 실제 혈액시료에 제안된 분석방법을 적용한 결과 정량한계는 사염화물(TeCDD/DF) 및 오염화물(PeCDD/DF)이 1 pg/g-lipid, 육염화물(HxDD/DF) 및 칠염화물(HpCDD/DF)이 2 pg/g-lipid 그리고 팔염화물(OCDD/DF)이 4 pg/g-lipid이며, 검량용 표준물질은 검출 농도를 고려하여 $CS_L$(0.1~1), $CS_1/2$(0.25~2.5), $CS_1$(0.5~5.0), $CS_2$(2~20) 및 $CS_3$(10~100)로 제시하였다.

For the analytical method of PCDD/Fs in blood, which have been issued recently, SRM 1589a of NIST(National Institute of Standards and Technology) was used and a practical analytical method of PCDD/Fs in blood was presented through comparison of methods of Canada and Japan. The proposed method used alkali-digestion extraction for removal of the lipid effectively using two capillary columns. The limit of quantification of TeCDD/DF and PeCDD/DF was 1 pg/g-lipid, HxCDD/DF and HpCDD/DF was 2 pg/g-lipid, OCDD/DF was 4 pg/g-lipid. With consideration the range of detected concentration, calibration standards were presented as $CS_L$(0.1~1), $CS_1/2$(0.25~2.5), $CS_1$(0.5~5.0), $CS_2$(2~20), $CS_3$(10~100).

키워드

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