Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Analysis of Trace Levels of Halonitromethanes (HNM) in Water using Headspace-SPME and GC-ECD

Headspace-SPME와 GC-ECD를 이용한 수중의 미량 Halonitromethane (HNM)류 분석

  • 강소원 (프리드리히-알렉산더대학교 생명화학공학과) ;
  • 손희종 (부산광역시 상수도사업본부 수질연구소) ;
  • 서창동 (부산광역시 상수도사업본부 수질연구소) ;
  • 김경아 (부산광역시 상수도사업본부 수질연구소) ;
  • 최진택 (부산광역시 상수도사업본부 수질연구소)
  • Received : 2015.05.18
  • Accepted : 2015.05.29
  • Published : 2015.05.31
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Abstract

Halonitromethanes (HNMs) are one of the most toxic groups of disinfection by-products. Recently, various studies have been fulfilled. An automated headspace-solid phase microextraction (SPME) gas chromatography/electron capture detector (GC-ECD) technique was developed for routine analysis of 9 HNMs in water samples. The optimization of the method is discussed. The limits of detection (LOD) and limits of quantification (LOQ) range from 90 ng/L to 260 ng/L and from 270 ng/L to 840 ng/L for 9 HNMs, respectively. Matrix effects in tap water and sea water were investigated and it was shown that the method is suitable for the analysis of trace levels of HNMs, in a wide range of waters. The method developed in the present study has the advantage of being rapid, simple and sensitive.

HNMs는 독성이 강한 소독부산물들 중의 하나로 최근에 다양한 연구가 진행되고 있다. 본 연구에서는 headspace-solid phase microextraction (SPME) 전처리장치와 GC-ECD를 이용하여 9종의 HNMs를 동시분석할 수 있는 분석법을 개발하였다. 9종의 HNMs에 대한 검출한계(LOD)는 90~260 ng/L였으며, 정량한계(LOQ)는 270~840 ng/L였다. 수돗물과 해수를 이용하여 시료수의 matrix 영향을 살펴본 결과, 9종의 HNMs에 대해 80%~127%의 양호한 회수율을 나타내어 시료수의 matrix에 영향을 받지 않았다. 또한, 본 연구에서 개발된 headspace SPME GC-ECD 분석법은 용매류를 이용한 별도의 전처리 과정이 필요하지 않아서 친환경적이며 간편하고 빠른 자동화된 방법으로 HNMs 분석에 적합한 것으로 나타났다.

Keywords

References

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