An efficient and fast microwave-assisted extraction method developed for the simultaneous determination of 18 organochlorine pesticides in sediment
文献类型：期刊论文
| 作者 | Merdassa, Yared; Liu, Jing-Fu; Megersa, Negussie; Tessema, Merid |
| 刊名 | INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2015-02-19 |
| 卷号 | 95期号:3页码:225-239 |
| 关键词 | microwave-assisted extraction environmental analysis organochlorine pesticide sediment GC-MS |
| 英文摘要 | An efficient and fast microwave-assisted extraction (MAE) method followed by gas chromatographic separation with mass spectrometric detection (GC-MS) was developed for the extraction of 18 organochlorine pesticides (OCPs) from sediment. Parameters affecting the MAE procedure such as the type and volume of the extraction solvent, irradiation power, temperature and irradiation time were successfully optimised. Under the optimal conditions, extraction efficiencies in the range of 73.4-119% were obtained with THF-HEX (9:1, v/v) for all OCPs studied. The method was linear over the range of 2.9-5000 ng g(-1) with determination coefficients (r(2)) higher than 0.992 for all analytes. The limits of detection, LODs (S/N=3), obtained varied from 1.0 to 2.2 ng g(-1) and limits of quantification, LOQs (S/N=10) were between 2.9 and 6.8 ng g(-1). The proposed method was successfully applied to the analysis of real sediment samples and acceptable recoveries from 70.1 to 124% with RSDs <= 14.8% were obtained. 10 OCPs were determined below their LOQ and 8 OCPs in the range of 124-2830ng g(-1). The MAE method was compared with Soxhlet, shake flask and ultrasonic solvent extraction techniques. Thus, the MAE-GC-MS method could efficiently be used for selective extraction and quantification of the target analytes from the complex sediment matrices. |
| 研究领域[WOS] | Chemistry, Analytical ; Environmental Sciences |
| WOS记录号 | WOS:000350819400004 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32509]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Merdassa, Yared,Liu, Jing-Fu,Megersa, Negussie,et al. An efficient and fast microwave-assisted extraction method developed for the simultaneous determination of 18 organochlorine pesticides in sediment[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY,2015,95(3):225-239. |
| APA | Merdassa, Yared,Liu, Jing-Fu,Megersa, Negussie,&Tessema, Merid.(2015).An efficient and fast microwave-assisted extraction method developed for the simultaneous determination of 18 organochlorine pesticides in sediment.INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY,95(3),225-239. |
| MLA | Merdassa, Yared,et al."An efficient and fast microwave-assisted extraction method developed for the simultaneous determination of 18 organochlorine pesticides in sediment".INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY 95.3(2015):225-239. |
入库方式： OAI收割
来源：生态环境研究中心
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