Arid
DOI10.1016/j.chroma.2008.08.067
Determination of organochlorine pesticides in sediment using graphitized carbon black solid-phase extraction and gas chromatography/mass spectrometry
Kim, Min-Sun1; Kang, Tae Woo1; Pyo, Heesoo2; Yoon, Junheon3; Choi, Kyunghee3; Hong, Jongki1
通讯作者Hong, Jongki
来源期刊JOURNAL OF CHROMATOGRAPHY A
ISSN0021-9673
出版年2008
卷号1208期号:1-2页码:25-33
英文摘要

An analytical method for the determination of organochlorine pesticides (OCPs) in sediment samples involves ultrasonic extraction, solid-phase extraction (SPE), gas-chromatography (CC)/electron-capture detection (ECD), and GC/mass spectrometry (MS). OCPs were extracted from sediment samples by ultra-sonication in mixtures of n-hexane and acetone. Several SPE sorbents [Florisil, silica gel, C18, Oasis HLB, and graphitized carbon black (GCB)] were evaluated as means of preliminary purification. GCB SPE cartridges successfully removed major contaminants such as non-polar hydrocarbons when eluted with an acetone-acetonitrile mixture. After purification, the extract was preferentially screened using GC/ECD and confirmed and quantified using CC/MS. The percentage recovery of samples spiked with 10 or 100ng/g OCP ranged from 73.9% to 106.0% with a relative standard deviation of 0.4-5.7%. Detection limits ranged from 0.002 to 0.005 ng/g for GC/ECD and from 0.03 to 0.50 ng/g for GC/MS detection. The linear dynamic range extended from 0.2 to 20 ng/g, with a correlation coefficient (R-2) greater than 0.995. The method was validated using a standard reference material (SRM 1941b) and spiked sediment samples. Real sediment samples collected from a river near a Korean industrial area exhibited low levels of several OCPs when analyzed using this method. (C) 2008 Elsevier B.V. All rights reserved.


英文关键词Organochlorine pesticides Sediment Graphitized carbon black Solid-phase extraction Method validation GC/ECD GC/MS
类型Article
语种英语
国家South Korea
收录类别SCI-E
WOS记录号WOS:000260445900004
WOS关键词PERSISTENT ORGANIC POLLUTANTS ; PRESSURIZED LIQUID EXTRACTION ; ULTRASONIC SOLVENT-EXTRACTION ; MASS-SPECTROMETRY ; POLYCHLORINATED-BIPHENYLS ; CHLORINATED PESTICIDES ; PYRETHROID PESTICIDES ; CLEANUP CARTRIDGES ; SOIL SAMPLES ; CONTAMINATION
WOS类目Biochemical Research Methods ; Chemistry, Analytical
WOS研究方向Biochemistry & Molecular Biology ; Chemistry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/158058
作者单位1.Kyung Hee Univ, Coll Pharm, Seoul 130701, South Korea;
2.Korea Inst Sci & Technol, Seoul, South Korea;
3.Natl Inst Environm Res, Inchon 404708, South Korea
推荐引用方式
GB/T 7714
Kim, Min-Sun,Kang, Tae Woo,Pyo, Heesoo,et al. Determination of organochlorine pesticides in sediment using graphitized carbon black solid-phase extraction and gas chromatography/mass spectrometry[J],2008,1208(1-2):25-33.
APA Kim, Min-Sun,Kang, Tae Woo,Pyo, Heesoo,Yoon, Junheon,Choi, Kyunghee,&Hong, Jongki.(2008).Determination of organochlorine pesticides in sediment using graphitized carbon black solid-phase extraction and gas chromatography/mass spectrometry.JOURNAL OF CHROMATOGRAPHY A,1208(1-2),25-33.
MLA Kim, Min-Sun,et al."Determination of organochlorine pesticides in sediment using graphitized carbon black solid-phase extraction and gas chromatography/mass spectrometry".JOURNAL OF CHROMATOGRAPHY A 1208.1-2(2008):25-33.
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