| Determination of odorous compounds in water by headspace solid-phase microextraction-gas chromatography-mass spectrometry | |
| Li, L; Song, LR; Gan, NQ; Chen, W; Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China | |
| 2005-08-01 | |
| Source Publication | CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
 |
| ISSN | 0253-3820 |
| Volume | 33Issue:8Pages:1058-1062 |
| Abstract | 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.; 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. |
| Subtype | Article |
| Keyword | Solid-phase Microextraction Gas Chromatography-mass Spectrometry Odorous Compound 2-methylisoborneol Geosmin Beta-cyclocitral |
| Department | Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| Subject Area | Chemistry, Analytical |
| WOS Headings | Science & Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Analytical |
| WOS ID | WOS:000231675700002 |
| WOS Keyword | DRINKING-WATER ; 2-METHYLISOBORNEOL ; GEOSMIN |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/152342/9166 |
| Collection | 期刊论文 |
| Corresponding Author | Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China |
| Affiliation | 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 |
| Recommended Citation 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,&Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(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. |
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