Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Determination of Phthalate Esters and Adipate in Water and Sediment Samples

수질 및 저질중의 프탈산 에스테르와 아디피산 분석

  • Myung, Seung-Woon (Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) ;
  • Chang, Yoon-Jung (Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) ;
  • Min, Hye-Ki (Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) ;
  • Kim, Myung-Soo (Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology)
  • 명승운 (한국과학기술연구원 생체대사연구센터) ;
  • 장윤정 (한국과학기술연구원 생체대사연구센터) ;
  • 민혜기 (한국과학기술연구원 생체대사연구센터) ;
  • 김명수 (한국과학기술연구원 생체대사연구센터)
  • Received : 2000.08.25
  • Published : 2000.10.25
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Abstract

The most common phthalate acid esters (8 compounds) and adipate were determined from water and sediment simultaneously. After liquid-liquid extraction with n-hexane for water and sonication extraction with dichloromethane for sediment, these were determined by the GC/MS with SIM mode. There were good linearities (above $R^2=0.993$) on the range of the 0.1-20 ng/ml (water) and 10-500 ng/g (sediment), and the detection limits of method were below 0.1 ng/ml and 10 ng/g for water samples and sediment samples, respectively. The method shows a good precision and accuracy for measurement of phthalates and adipate.

Phthalates 8종 및 adipate에 대해 수질 및 저질중의 함유량을 동시에 측정하였다. 수질의 경우는 n-헥산을 사용하여 액체-액체 추출법으로 추출하였고 농축시킨 후 n-헥산에 용해시켜서 분석하였으며 저질의 경우에는 디클로로메탄을 추출용매로 사용하여 초음파세정기를 이용하여 추출한 후 농축시켜서 이소옥탄에 용해시켜서 GC/MS에 주입하여 SIM 방법으로 분석하였다. 그 결과 0.1-20 ng/ml(수질)과 10-500 ng/g(저질, DEP: 10-250 ng/g; DEHP: 10-2000 ng/g)의 정량구간내에서 $R^2=0.993$ 이상의 좋은 직선성을 나타내었으며 검출한계는 0.1 ng/ml(수질)과 10 ng/g(저질) 이하이있다. 본 분석방법은 낮은 농도에서도 정밀도와 정확도가 양호하였다.

Keywords

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