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题名: Microwave-assisted purge-and-trap extraction device coupled with gas chromatography and mass spectrometry for the determination of five predominant odors in sediment, fish tissues, and algal cells
作者: Deng, Xuwei1, 2; Xie, Ping1; Qi, Min1, 3; Liang, Gaodao1; Chen, Jun1; Ma, Zhimei1; Jiang, Yan1
通讯作者: Xie, P (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Donghu S Rd 7, Wuhan 430072, Hubei, Peoples R China
关键词: Purge and trap ; Microwave-assisted ; Odor ; Sediment ; Fish tissue ; Algae
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2012-01-06
DOI: 10.1016/j.chroma.2011.11.031
卷: 1219, 期:0, 页:75-82
收录类别: SCI
文章类型: Article
部门归属: [Deng, Xuwei; Xie, Ping; Qi, Min; Liang, Gaodao; Chen, Jun; Ma, Zhimei; Jiang, Yan] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Hubei, Peoples R China; [Deng, Xuwei] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Qi, Min] Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Hubei, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
资助者: National Basic Research Program of China (973 Program)[2008CB418101]; Lake water quality, water quantity and biological resources investigation in China[2006FY110600]; State key laboratory of freshwater ecology and biotechnology[2008FBZ01]
类目[WOS]: Biochemical Research Methods ; Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ; Chemistry
摘要: Off-flavors are among the most troublesome compounds in the environment worldwide. The lack of a viable theory for studying the sources, distribution, and effect of odors has necessitated the accurate measurement of odors from environmental compartments. A rapid and flexible microwave-assisted purge-and-trap extraction device for simultaneously determining five predominant odors, namely, dimethyltrisulfide, 2-methylisoborneol, geosmin, beta-cyclocitral and beta-ionone, from the primary sources and sinks is demonstrated. This instrument facilitates the extraction and concentration of odors from quite different matrices simultaneously. This device is a solvent-free automated system that does not require cleaning and is timesaving. The calibration curves of the five odor compounds showed good linearity in the range of 1-500 ng/L, with correlation coefficients above 0.999 (levels = 7) and with residuals ranging from approximately 77% to 104%. The limits of detection (S/N = 3) were below 0.15 ng/L in algae sample and 0.07 ng/g in sediment and fish tissue samples. The relative standard deviations were between 2.65% and 7.29% (n = 6). Thus the proposed design is ready for rapid translation into a standard analytical tool and is useful for multiple applications in the analysis of off-flavors. (C) 2011 Elsevier B.V. All rights reserved.
英文摘要: Off-flavors are among the most troublesome compounds in the environment worldwide. The lack of a viable theory for studying the sources, distribution, and effect of odors has necessitated the accurate measurement of odors from environmental compartments. A rapid and flexible microwave-assisted purge-and-trap extraction device for simultaneously determining five predominant odors, namely, dimethyltrisulfide, 2-methylisoborneol, geosmin, beta-cyclocitral and beta-ionone, from the primary sources and sinks is demonstrated. This instrument facilitates the extraction and concentration of odors from quite different matrices simultaneously. This device is a solvent-free automated system that does not require cleaning and is timesaving. The calibration curves of the five odor compounds showed good linearity in the range of 1-500 ng/L, with correlation coefficients above 0.999 (levels = 7) and with residuals ranging from approximately 77% to 104%. The limits of detection (S/N = 3) were below 0.15 ng/L in algae sample and 0.07 ng/g in sediment and fish tissue samples. The relative standard deviations were between 2.65% and 7.29% (n = 6). Thus the proposed design is ready for rapid translation into a standard analytical tool and is useful for multiple applications in the analysis of off-flavors. (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: SOLID-PHASE MICROEXTRACTION ; CATFISH ICTALURUS-PUNCTATUS ; OFF-FLAVORS ; DRINKING-WATER ; PICOGRAM DETERMINATION ; TASTE ; GEOSMIN ; LAKE ; 2-METHYLISOBORNEOL ; CYANOBACTERIAL
语种: 英语
WOS记录号: WOS:000299585900009
ISSN号: 0021-9673
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16713
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Hubei, Peoples R China

Recommended Citation:
Deng, Xuwei; Xie, Ping; Qi, Min; Liang, Gaodao; Chen, Jun; Ma, Zhimei; Jiang, Yan.Microwave-assisted purge-and-trap extraction device coupled with gas chromatography and mass spectrometry for the determination of five predominant odors in sediment, fish tissues, and algal cells,JOURNAL OF CHROMATOGRAPHY A,2012,1219():75-82
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