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IC와 LC-MS를 이용한 퍼클로레이트 분석 방법 비교 및 모니터링
김화빈(Hwa Bin Kim),심원진(Won Jin Sim),김민영(Min Young Kim),오정은(Jeong Eun Oh) 大韓環境工學會 2008 대한환경공학회지 Vol.30 No.1
본 연구에서는 퍼클로레이트 분석에 주로 사용되고 있는 IC와 LC/MS를 사용해 퍼클로레이트 분석법을 정립하고 각 분석법의 장단점 및 효율을 파악해 수질 및 토양 시료에서의 퍼클로레이트를 모니터링 하고자 하였다. 각 분석기기를 사용한 최적 분석 방법을 정립한 결과 IC에서의 MDL은 1 ppb였으며 LC-MS에서의 MDL은 0.005 ppb였다. 정립된 분석방법으로 부산시 내의 지하수 및 약수터, 하수처리장과 토양 시료를 대상으로 하여 퍼클로레이트 모니터링을 실시하여 퍼클로레이트에 대한 노출정도를 평가하였다. 평균 퍼클로레이트 농도는 약수터에서는 0.013 ± 0.014 ppb, 지하수 0.031 ± 0.011 ppb로 나타났고 하수처리장 폐수에서는 0.007∼0.380 ppb의 범위로 퍼클로레이트가 검출되었다. 모든 시료에서의 퍼클로레이트 농도는 EPA 기준인 24.5 ppb 이하로 나타났다. In this study, we tried to establish analysis methods of perchlorate with ion chromatography(IC) and liquid chromatography/mass spectrometry(LC/MS) and monitored perchlorate levels in various kinds of water and soil samples. The obtained method detection limit(MDL) of IC was 1 ppb and that of LC/MS was 0.005 ppb in water sample. We monitored the ground and spring water in Busan and the average perchlorate level in ground water was 0.031 ± 0.011 ppb and that of spring water was 0.013 ± 0.014 ppb. Wastewater samples were also examined and the levels of perchlorate ranged from 0.007 to 0.380 ppb. The perchlorate levels in all water samples investigated in this study were below the EPA guideline.
울산지역 주요 하천에서의 의약물질 및 개인관리용품 분포현황
권혜옥 ( Hye Ok Kwon ),심원진 ( Won Jin Sim ),김희영 ( Hee Young Kim ),오정은 ( Jeong Eun Oh ),최성득 ( Sung Deuk Choi ) 한국환경분석학회 2011 환경분석과 독성보건 Vol.14 No.3
Pharmaceuticals and personal care products (PPCPs) have been recognized as emerging contaminants in freshwater. In recent years, a lot of monitoring studies have been carried out, and wastewater treatment plants (WWTPs) were identified as a major source of PPCPs. As Ulsan is a metropolitan city and there are more than four rivers and six WWTPs, we conducted the first PPCP monitoring study to investigate the level, pattern, and geographical distribution of PPCPs in Ulsan. We collected 19 river water samples and analyzed 29 PPCPs using an LC/MS/MS. Among the target compounds, 26 compounds were detected from the samples; Antibiotics, analgesic and antipyretics, and beta-blockers were dominant compounds. As lincomycin and atenolol were frequently detected with the highest concentrations, they were listed as priority PPCPs in Ulsan. The highest total concentration of PPCPs was measured at a sampling site near the Eonyang WWTP, demonstrating that the WWTP is an important source of PPCPs. However, the overall spatial distribution of PPCPs suggests that non-point sources are also important in Ulsan.
혈액과 모유 시료 중 과불화화합물 분석을 위한 전처리법 평가
이응선 ( Eung Sun Lee ),김희영 ( Hee Young Kim ),심원진 ( Won Jin Sim ),이지현 ( Ji Hyun Lee ),오정은 ( Jeong Eun Oh ),김형식 ( Hyung Sik Kim ) 한국환경분석학회 2011 환경분석과 독성보건 Vol.14 No.1
In this study, we evaluated extraction methods for the analysis of perfluorinated compounds (PFCs) in human serum and breast milk samples. The recovery efficiencies of ion pairing extraction (IPE) and solid phase extraction (SPE) in each serum and breast milk were examined. For serum samples, IPE was more efficient (recovery efficiency: 81-105%) than SPE. For breast milk samples, except for perfluorododecanoic acid (PFDoA), SPE showed better recoveries (80-98%) than IPE. As results of validity test, accuracy and precision were in the range of 81~130% and 1~18% in serum, and 54~130% and 2~17% in breast milk, respectively. We also analyzed PFCs in the cord serum and breast milk from 13 pregnant women using the method established in this study. In the cord serum, all PFCs except for perfluorobutane sulfonate, perfluoroheptane sulfonate and perfluorohexanoic acid were detected. In the breast milk, perfluorooctane sulfonate, perfluorooctanoic acid and PFDoA were detected dominantly compared with other PFCs.