Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Determination of benzophenone in water, soil and sediment by gas chromatography/mass spectrometry

기체크로마토그래피/질량분석기에 의한 수질, 토양 및 저질 시료중의 benzophenone 분석법에 관한 연구

  • Jeon, Hee Kyung (Toxicology Lab., Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) ;
  • Choi, Hae Yeon (Toxicology Lab., Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) ;
  • Ryu, Jae-Chun (Toxicology Lab., Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology)
  • 전희경 (한국과학기술연구원, 생체대사연구센터 독성연구실) ;
  • 최해연 (한국과학기술연구원, 생체대사연구센터 독성연구실) ;
  • 류재천 (한국과학기술연구원, 생체대사연구센터 독성연구실)
  • Received : 2005.01.25
  • Accepted : 2005.03.08
  • Published : 2005.04.25
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Abstract

Benzophenone (BP) which is one of endocrine disrupting chemicals is suspected to contaminate waters (river, lake and industrial drainage) and soils (ground soil and sediment). Analytical method for determination of BP in soil and water was developed by gas chromatography/mass spectrometry. Water sample (100 mL) was extracted with n-hexane, and soil (10 g) was extracted with methanol and n-hexane. Recovery for BP was >71.4% in water and 86.5-94.7% in soil with coefficient variation of less than 19.8%. Calibration curves showed a good linearity ($r^2$ >0.998). In water, soil and sediment collected at nation-wide sites, BP was detected at 5 sites among 43 water sites at the concentration range of 30-200 ng/L. No BP was found in the soil and sediment samples. It is suggested that this method will be useful to the determination of BP in the environmental matrices such as waters, soils and sediments in minute quantities.

본 연구는 GC/MS를 이용하여 수질, 토양 및 저질 시료 중의 benzophenone (BP)을 분석하는 방법을 확립하고자 하였다. BP는 수질 시료 (100 mL)에서 n-hexane으로 추출하였으며, 토양 및 저질 시료 (10 g)에서는 먼저 메탄올로 추출한 후 hexane으로 다시 추출하여 농축시켜 분석하였다. 수질 시료 중의 BP 회수율은 71.4% 이상이었으며 토양에서의 회수율은 86.5-94.7%를 보였고 재현성은 19.8% 이하였다. 검정곡선은 상관계수 ($r^2$) 값이 수질과 토양 모두에서 0.998이상의 좋은 직선성을 보여주었다. 수질 시료의 경우 43지역 중 3지역의 수질에서 30-200 ng/L 농도 범위로 BP가 검출되었으며 토양과 저질 시료에서는 모든 지역에서 검출되지 않았다. 이 분석방법은 환경 중에 미량으로 존재하는 BP의 분석과 모니터링에 유용하게 사용할 수 있는 적합한 방법이라 사료된다.

Keywords

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