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산성 제초제류의 TFE/TFAA 유도체화 방법에 대한 실험실간 정도관리
표희수(Heesoo Pyo),박송자(Song-Ja Park),이강진(Kang Jin Lee),홍종기(Jongki Hong),신호상(Ho Sang Shin) 한국농약과학회 2005 농약과학회지 Vol.9 No.2
A sensitive derivatization method by using the TFE/TFAA as derivative reagent is proposed for the determination of acidic herbicides in water, by using this method, method detection limits are improved by 10 times and sample volumes are decreased by 5 times compared with other methods such as U.S. EPA and SPEED 98. And also, in order to suggest higher creditable standard operating procedure (SOP), intra- and inter-lab validation test carried out by four laboratories include our lab. The results of intra and inter-lab validations in same experimental conditions show good linearity in given range of concentrations as a 0.1~10.0 ng/ml, and range of accuracies and precisions show -20.5~12.2 bias%, 0.55~24.48% (for intra-lab validation) and -6.66~0.80 bias%, 1.92~13.86% (for inter-lab validation), respectively.
손보영,이이내,양미희,박상민,표희수,이원석,박주현,Son, Boyoung,Lee, Leenae,Yang, Mihee,Park, Sangmin,Pyo, Heesoo,Lee, Wonsuk,Park, Juhyun 대한상하수도학회 2017 상하수도학회지 Vol.31 No.6
The chemical structures of perfluorinated compounds(PFCs) have unique properties such as thermal and chemical stability that make them useful components in a wide variety of consumer and industrial products. Two of these PFCs, perfluorooctane sulfonate(PFOS) and perfluorooctanoic acid(PFOA), have received attention and were the most commonly detected. In this study it was analyzed the concentrations of 8 PFCs in samples were collected from drinking water treatment plants for 5 years(2012-2016). PFOS and PFOA were also high concentration and frequency. The mean concentrations of PFOA and PFOS were detected $0.0026-0.0069{\mu}g/L$ and $0.0009-0.0024{\mu}g/L$ in samples from drinking water treatment plants. These were relatively lower or similar compared to PFOS concentrations in Osaka(Japan). In general, these levels are below health-based values set by international authoritative bodies for drinking water. These results will be serve as the first monitoring data for PFCs in drinking water and be useful for characterizing the concentration distribution and management of PFCs in future studies.