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NTIS 바로가기대한환경공학회지 = Journal of Korean Society of Environmental Engineers, v.37 no.5, 2015년, pp.262 - 268
이기창 (경상북도보건환경연구원) , 이원태 (금오공과대학교 환경공학전공)
This study established an analytical method to simultaneously determine six organophosphorous pesticides [methyldemetone-S, diazinon, fenitrothion, parathion, phentoate, and O-ethyl O-(4-nitrophenyl) phenylphosphonothioate (EPN)] and carbaryl in water using a gas chromatography/mass spectrometry (GC...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
LLE 방법의 단점은 무엇인가? | 3,7) 기기분석 전에 시료는 추출과 같은 전처리과정을 반드시 거쳐야 하며, 액액추출방법(liquid-liquid extraction, LLE)과 고상추출방법(solid phase extraction, SPE)이 농약 추출에 가장 많이 이용되고 있다.5) 하지만, LLE 방법은 전처리 시간과 용매 사용량이 많으며, SPE 방법은 LLE에 비해 용매사용량은 적지만 추출칼럼 사용에 따른 전처리 비용증가와 기술을 요하는 단점이 있다.5) 따라서, 최근에는 용매사용량을 줄이고, 추출과정이 간편하고 on-line 자동분석이 가능한 다양한 미량추출기술(microextraction techniques)이 많이 소개되고 있으며,5) 이들 중에는 고상미량추출(solid phase microextraction, SPME),8,9) 교반막대흡착추출(stir bar sorptive extraction, SBSE),10,11) 액상미량추출(liquid-phase microextraction, LPME),12,13) magnetic solvent bar liquid-phase microextraction (MSB-LPME),5) matrix solid-phase dispersion-solid phase extraction (MSPD-SPE),7) micro extraction by packed sorbent (MEPS)14) 등의 전처리방법이 있다. | |
유기농약류의 무분별한 사용으로, 어떤 문제가 발생할 수 있나? | 농약(pesticides)은 곤충으로부터 농작물을 보호하고, 농산물 생산 증대를 위해 지난 세기부터 전 세계적으로 널리 사용되어 왔으며, 유기염소계 농약(organochlorine pesticides, OCPs), 유기인계 농약(organophosphorus pesticides, OPPs), 카바메이트계 농약(carbamates pesticides, CPs), 피레트로이드계 농약(pyrethroid pesticides, PPs) 등과 같은 유기농약류들이 대표적이다.1,2) 하지만, 이들 화학물질의 무분별한 사용은 먹이사슬을 통한 생물학적 농축과 환경오염을 야기할 수 있으며, 또한 많은 농약류들이 독성과 잔류성을 갖고 있어 미량수준에서도 생태계와 인체 건강에 유해한 영향을 줄 수 있다.1,3) 이러한 이유로 식품, 물, 다양한 환경시료에 대한 잔류농약의 지속적인 모니터링이 필요할 것으로 판단된다. | |
농약류를 간편하고 빠르게 검출할 수 있는 분석방법에는 무엇이 있는가? | 최근 몇 년 동안 chromatographic methods, UV-visible/ fluorescence spectrophotometry methods, electro-luminescence/ chemi-luminescence methods 등 농약류를 간편하고 빠르게 검출할 수 있는 분석방법들이 많이 개발되어 왔다.6) 이 중 미량농도의 유기인계 농약분석을 위해 gas/liquid chromatography 또는 UV-visible spectrophotometry 시스템을 이용한 기기분석방법이 가장 많이 이용되고 있다. |
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Ferreira, A., Rodrigues, M., Oliveira, P., Francisco, J., Fortuna, A., Rosado, L., Rosado, P., Falcao, A. and Alves, G., "Liquid chromatographic assay based on microextraction by packed sorbent for therapeutic drug monitoring of carbamazepine, lamotrigine, oxcarbazepine, phenobarbital, phenytoin and the activemetabolites carbamazepine-10,11-epoxide and licarbazepine," J. Chromatogr. B, 971, 20-29(2014).
Cavalheiro, J., Prieto, A., Monperrus, M., Etxebarria, N. and Zuloaga, O., "Determination of polycyclic and nitro musks in environmental water samples by means of microextraction by packed sorbents coupled to large volume injection-gas chromatography-mass spectrometry analysis," Anal. Chim. Acta, 773, 68-75(2013).
Rodrigues, M., Alves, G., Rocha, M., Queiroz, J. and Falcaao, A., "First liquid chromatographic method for the simultaneous determination of amiodarone and desethylamiodarone in human plasma using microextraction by packed sorbent (MEPS) as sample preparation procedure," J. Chromatogr. B: Anal. Technol. Biomed. Life Sci., 913-914, 90-97(2013).
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Said, R., Pohanka, A., Abdel-Rehim, M. and Beck, O., "Determination of four immunosuppressive drugs in whole blood using MEPS and LC-S/MS allowing automated sample workup and analysis," J. Chromatogr. B, 897, 42-49(2012).
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AWWA, Standard Method 6610(1999).
EPA, Method 531.2, Revision 1.0(2001).
Korean Ministry of Environment, Korean Standards Methods on Drinking Water(2013).
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