Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Applicability of Fibrous Solid Phase Extraction to Alkyl Phthalates Analysis

알킬프탈레이트 분석을 위한 섬유상 고상 추출법의 적용 가능성

  • Jung, Yong-Jun (Department of Environmental Engineering, Catholic University of Pusan)
  • 정용준 (부산가톨릭대학교 환경공학과)
  • Received : 2008.09.02
  • Accepted : 2008.10.14
  • Published : 2008.11.30
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Abstract

A fibrous material (p-phenylene-2,5-benzobisoxazole, PBO) was used as an adsorbent for solid phase extraction in order to simplify the extraction procedure. The extraction performance for di-(2-ethylhexyl) phthalate (DEHP) was examined with two types of PBO fibers (HM (High modulus) and AS (Regular type) types) by batch type sorption/desorption experiments. When 100 mg of the HM fibers were applied to 20 mL of the aqueous DEHP solution (less than $50{\mu}g/L$), more than 95% of DEHP was adsorbed on the fibers, however, the AS type fibers adsorbed alkyl phthalate up to 80%. In the case of $50{\mu}g/L$ of the initial concentration of DEHP, the adsorbed DEHP was extracted effectively with methanol and the maximum overall recovery ratio was 92.3%. The results indicated that the PBO fibers could be used as an adsorbent for alkyl phthalate analysis, and that the extraction procedure was not affected by suspended solids in a water sample.

본 연구에서는 섬유상 재료(PBO)가 고상 추출을 위한 흡착제로 사용되어 분석 과정을 간소화하였다. 두 종류의 PBO섬유(HM, AS)를 이용한 회분식 흡/탈착 실험으로 DEHP 물질의 추출 특성을 평가하였다. 100 mg의 HM 섬유를 20 mL의 수용성 DEHP 용액($50{\mu}g/L$이하)에 주입한 결과, 95%의 DEHP가 흡착되었다. 초기 $50{\mu}g/L$의 DEHP 수용액의 경우, 흡착된 DEHP는 메탄올로 탈착되어 전체 회수율은 92.3%로 나타났다. 따라서 PBO섬유는 알킬프탈레이트 분석을 위한 흡착제로 유용한 것으로 나타났고, 이런 추출 과정은 수중의 SS에 영향을 받지 않았다.

Keywords

References

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