한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제26권4호
  • /
  • Pages.622-628
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  • 2010
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

고체상미량추출법을 이용한 BTEX와 MTBE의 경쟁적 추출효과 및 미량분석에 관한 연구

Competitive Extraction and Trace Analysis of BTEX and MTBE by Solid-Phase Microextraction (SPME)

  • 안상우 (한양대학교 건설환경공학과) ;
  • 천석영 (경기대학교 환경에너지시스템공학과) ;
  • 이시진 (경기대학교 환경에너지시스템공학과) ;
  • 박재우 (한양대학교 건설환경공학과) ;
  • 장순웅 (경기대학교 환경에너지시스템공학과)
  • An, Sang-Woo (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Chun, Suk-Young (Department of Environmental Energy & System Engineering, Kyonggi University) ;
  • Lee, Si-Jin (Department of Environmental Energy & System Engineering, Kyonggi University) ;
  • Park, Jae-Woo (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Chang, Soon-Woong (Department of Environmental Energy & System Engineering, Kyonggi University)
  • 투고 : 2010.02.11
  • 심사 : 2010.05.11
  • 발행 : 2010.07.30
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초록

In this study, Solid-phase microextraction (SPME) with GC/FID was studied as a possible alternative to liquid-liquid extraction for the analysis of BTEX and MTBE. Experimental parameters affecting the SPME process (such as kind of fibers, adsorption time, desorption time, volume ratio of sample to headspace, salt addition, and magnetic stirring) were optimized. Experimental parameters such as CAR/PDMS, adsorption time of 20 min, desorption time of 5 min at $250^{\circ}C$, headspace volume of 50 mL, sodium chloride (NaCl) concentration of 25% combined with magnetic stirring were selected in optimal experimental conditions for analysis of BTEX and MTBE. The general affinity of analytes to CAR/PDMS fiber was high in the order p-Xylene>Toluene>Ethylbenzene>MTBE>Benzene. The linearity of $R^2$ for BTEX and MTBE was from 0.970 to 0.999 when analyte concentration ranges from $30{\mu}g/L$ to $500{\mu}g/L$, respectively. The relative standard deviation (% RSD) were from 2.5% to 3.2% for concentration of $100{\mu}g/L$ (n=5), respectively. Finally, the limited of detection (LOD) observed in our study for BTEX and MTBE were from $7.5{\mu}g/L$ to $15{\mu}g/L$, respectively.

키워드

참고문헌

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