Rapid detection of taste and odor compounds in water using the newly invented chemi-ionization technique coupled with time-of-flight mass spectrometry
文献类型：期刊论文
| 作者 | Ma, Pengkun; Yang, Bo; Shu, Jinian; Zhang, Haixu; Huang, Jingyun |
| 刊名 | ANALYTICA CHIMICA ACTA
 |
| 出版日期 | 2018-12-04 |
| 卷号 | 1035页码:119-128 |
| 关键词 | On-line detection Odorant Water Chemi-ionization Mass spectrometry |
| ISSN号 | 0003-2670 |
| 文献子类 | Article |
| 英文摘要 | Taste and odor (T&O) compounds are widespread in water environments and have attracted considerable public attention. Nowadays, the standard detections of these chemicals rely mainly on off-line methods such as GC-MS or evaluation by trained analysts' senses. In this study, we report a method for the rapid detection of T&O compounds in water by exploiting a newly invented chemi-ionization source, in combination with headspace vapor measurement at room temperature. The calibrated limits of detection (LODs) of 2-methylbutyraldehyde, methyl tert-butyl ether (MTBE), methyl methacrylate (MMA), 2-isobutyl-3-methyoxypyrazine (IBMP), and 2-isopropyl-3-methoxypyrazine (IPMP) are in the range of 3.5-50.2 ng L-1, and the estimated LODs of 2-methylisoborneol (2-MIB) and geosmin (GSM) are 0.25 and 0.77 ng L-1, respectively. The calibration results reveal that the instrumental LODs for 2-methylbutyraldehyde, MTBE, MMA, beta-cyclocitral, 2-MIB, and GSM are 1-2 orders of magnitude better than the odor thresholds of humans. The accuracy, precision, recovery, and linearity (R-2) of the method are tested. Water samples from city tap water and three rivers in Beijing are assessed using this technique, and the typical T&O compositions are observed with concentrations ranging from 0.2 to 297 ng L-1. The new ultra-sensitive rapid detection method shows comparable sensitivities to the existing off-line technique and displays great potential for real-time detection of T&O pollution in water environments. (c) 2018 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41172]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ma, Pengkun,Yang, Bo,Shu, Jinian,et al. Rapid detection of taste and odor compounds in water using the newly invented chemi-ionization technique coupled with time-of-flight mass spectrometry[J]. ANALYTICA CHIMICA ACTA,2018,1035:119-128. |
| APA | Ma, Pengkun,Yang, Bo,Shu, Jinian,Zhang, Haixu,&Huang, Jingyun.(2018).Rapid detection of taste and odor compounds in water using the newly invented chemi-ionization technique coupled with time-of-flight mass spectrometry.ANALYTICA CHIMICA ACTA,1035,119-128. |
| MLA | Ma, Pengkun,et al."Rapid detection of taste and odor compounds in water using the newly invented chemi-ionization technique coupled with time-of-flight mass spectrometry".ANALYTICA CHIMICA ACTA 1035(2018):119-128. |
入库方式： OAI收割
来源：生态环境研究中心
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