The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Analysis of Residual Organic Solvent in Environmentally-friendly Farming Materials with Headspace Method

Headspace 법을 사용한 유기농업자재 중 잔류 유기용매 분석

  • Choi, Geun Hyoung (Chemical Safety Division, National Institute of Agricultural Sciences, RDA) ;
  • Kong, Seung-Heon (Division of Applied Life Science (BK21 plus), Institute of Agriculture and Life Science (IALS), Gyeongsang National University) ;
  • Park, Byung-Jun (Chemical Safety Division, National Institute of Agricultural Sciences, RDA) ;
  • Moon, Byeong-Cheol (Chemical Safety Division, National Institute of Agricultural Sciences, RDA) ;
  • Kim, Jin-Hyo (Division of Applied Life Science (BK21 plus), Institute of Agriculture and Life Science (IALS), Gyeongsang National University)
  • 최근형 (농촌진흥청 국립농업과학원 화학물질안전과) ;
  • 공승헌 (경상대학교 농업생명과학연구원 응용생명과학부(BK21 plus)) ;
  • 박병준 (농촌진흥청 국립농업과학원 화학물질안전과) ;
  • 문병철 (농촌진흥청 국립농업과학원 화학물질안전과) ;
  • 김진효 (경상대학교 농업생명과학연구원 응용생명과학부(BK21 plus))
  • Received : 2016.05.24
  • Accepted : 2016.06.17
  • Published : 2016.06.30
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Abstract

Volatile organic solvents are used to extract the bioactive materials from raw materials for environmentally-friendly farming materials (EFFM), but the solvent should not remain in EFFM for the safety reasons. Thus qualitative and quantitative analysis method for the solvents using Headspace-GC were evaluated. Water content depleted the detection ratio of hydrophilic solvents and disturbing the hydrophilic interaction with solvents by DMSO might be helped to increase the detection ratio (up to 715%). Surfactant concentration affected to the detection ratio (68.5-179.1%) while surfactant type was not deeply involved the solvent detection. On the other hand, matrix-matched calibration method was accepted the minimum requirements for the quantitative analysis of the solvents in EFFM.

본 연구에서는 유기농업자재 중 잔류 휘발성 유기용매의 정성 및 정량분석을 위해 Headspace-GC 분석법을 matrix 조성을 달리하여 검출능을 중심으로 시험하였다. Headspace sampler내 흡습제처리 혹은 DMSO molar ratio를 증가시키는 방법을 통해 친수성기를 갖는 유기용매의 분석능이 최대 715% 향상되었으며, 특히 농자재의 보조제로 많이 사용되는 계면활성제의 경우 시료 중 농도가 계면활성제의 종류보다 유기용매 분석능에 미치는 영향이 큰 것을 확인할 수 있었다(68.5-179.1%). 특히 병해충 관리용 유기농업자재의 보조성분 및 함량이 정확히 공개되지 않은 상황에서 유기용매의 함량 정량분석을 위해서는 각각의 분석시료마다 matrix-matched calibration을 통한 정량 분석으로의 접근이 검토되어야 할 것으로 판단된다.

Keywords

References

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