Determination of odorous compounds in water by headspace solid-phase microextraction-gas chromatography-mass spectrometry

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	Determination of odorous compounds in water by headspace solid-phase microextraction-gas chromatography-mass spectrometry
	Li, L ; Song, LR ; Gan, NQ ; Chen, W
刊名	CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
	2005-08-01
卷号	33 期号:8 页码:1058-1062
关键词	solid-phase microextraction gas chromatography-mass spectrometry odorous compound 2-methylisoborneol geosmin beta-cyclocitral
ISSN号	0253-3820
通讯作者	Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
中文摘要	Three major odorous compounds are 2-methylisoborneol ( 2-MIB), geosmin and beta-cyclocitral, which in water were determined by coupling headspace solid-phase microextraction ( HS-SPME) with gas chromatography-mass spectrometry (GC-MS). The operating conditions of HS-SPME, such as fibre type, salt concentration, water temperature, stirring, absorption time and desorption time were studied and discussed.The highest absorption of the odorous compounds were obtained under the following operating conditions as the addition of 30% ( m/V) NaCl, stirring at 60 degrees C for 40 min, using 65 mu m polydimethyl siloxane/divinylbenzene coated fibre. After the odorous compounds had been absorbed in the fibre under the optimal conditions of HSSPME, they were desorbed at 250 degrees C and determined by GC-MS. The limits of detection for geosmin, beta-cyclocitral and 2-MIB in water were 1. 0, 1. 3, 1. 7 ng/L, and the relative standard deviations for them were 4. 9%, 8. 4%, 6. 2%,respectively. There were good linear correlation (the calibration coefficients were all above 0. 997) for the three odorous compounds in the range of 5 similar to 1000 ng/ L. Therefore, trace levels of the odorous compounds at ng/L in water could be quantified by the simple method with satisfactory result.
英文摘要	Three major odorous compounds are 2-methylisoborneol ( 2-MIB), geosmin and beta-cyclocitral, which in water were determined by coupling headspace solid-phase microextraction ( HS-SPME) with gas chromatography-mass spectrometry (GC-MS). The operating conditions of HS-SPME, such as fibre type, salt concentration, water temperature, stirring, absorption time and desorption time were studied and discussed.The highest absorption of the odorous compounds were obtained under the following operating conditions as the addition of 30% ( m/V) NaCl, stirring at 60 degrees C for 40 min, using 65 mu m polydimethyl siloxane/divinylbenzene coated fibre. After the odorous compounds had been absorbed in the fibre under the optimal conditions of HSSPME, they were desorbed at 250 degrees C and determined by GC-MS. The limits of detection for geosmin, beta-cyclocitral and 2-MIB in water were 1. 0, 1. 3, 1. 7 ng/L, and the relative standard deviations for them were 4. 9%, 8. 4%, 6. 2%,respectively. There were good linear correlation (the calibration coefficients were all above 0. 997) for the three odorous compounds in the range of 5 similar to 1000 ng/ L. Therefore, trace levels of the odorous compounds at ng/L in water could be quantified by the simple method with satisfactory result.
学科主题	Chemistry, Analytical
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Analytical
研究领域[WOS]	Chemistry
关键词[WOS]	DRINKING-WATER ; 2-METHYLISOBORNEOL ; GEOSMIN
收录类别	SCI
语种	英语
WOS记录号	WOS:000231675700002
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/9166]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Li, L,Song, LR,Gan, NQ,et al. Determination of odorous compounds in water by headspace solid-phase microextraction-gas chromatography-mass spectrometry[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2005,33(8):1058-1062.
APA	Li, L,Song, LR,Gan, NQ,&Chen, W.(2005).Determination of odorous compounds in water by headspace solid-phase microextraction-gas chromatography-mass spectrometry.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,33(8),1058-1062.
MLA	Li, L,et al."Determination of odorous compounds in water by headspace solid-phase microextraction-gas chromatography-mass spectrometry".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 33.8(2005):1058-1062.