Separation and screening of short-chain chlorinated paraffins in environmental samples using comprehensive two-dimensional gas chromatography with micro electron capture detection
文献类型：期刊论文
| 作者 | Xia, Dan ; Gao, Lirong ; Zhu, Shuai ; Zheng, Minghui |
| 刊名 | ANALYTICAL AND BIOANALYTICAL CHEMISTRY
 |
| 出版日期 | 2014 |
| 卷号 | 406期号:29页码:7561-7570 |
| 关键词 | Comprehensive two-dimensional gas chromatography Micro electron capture detection Short chain chlorinated paraffins Environmental samples |
| ISSN号 | 1618-2642 |
| 中文摘要 | Short-chain chlorinated paraffins (SCCPs) are highly complex technical mixtures with thousands of isomers and numerous homologs. They are classified as priority candidate persistent organic pollutants under the Stockholm Convention for their persistence, bioaccumulation, and toxicity. Analyzing SCCPs is challenging because of the complexity of the mixtures. Chromatograms of SCCPs acquired using one-dimensional (1D) gas chromatography (GC) contain a large characteristic "peak" with a broad and unresolved profile. Comprehensive two-dimensional GC (GCxGC) shows excellent potential for separating complex mixtures. In this study, GCxGC coupled with micro electron capture detection (mu ECD) was used to separate and screen SCCPs. The chromatographic parameters, including the GC column types, oven temperature program, and modulation period, were systematically optimized. The SCCP congeners were separated into groups using a DM-1 column connected to a BPX-50 column. The SCCP congeners in technical mixtures were separated according to the number of chlorine substituents for a given carbon chain length and according to the number of carbon atoms plus chlorine atoms for different carbon chain lengths. A fish tissue sample was analyzed to illustrate the feasibility of the GCxGC-mu ECD method in analyzing biological samples. Over 1,500 compounds were identified in the fish extract, significantly more than were identified using 1D GC. The detection limits for five selected SCCP congeners were between 1 and 5 pg/L using the GCxGC method, and these were significantly lower than those achieved using 1D GC. This method is a good choice for analysis of SCCPs in environmental samples, exhibiting good separation and good sensitivity. |
| WOS记录号 | WOS:000344860300015 |
| 公开日期 | 2015-03-24 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9452]  |
| 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 | Xia, Dan,Gao, Lirong,Zhu, Shuai,et al. Separation and screening of short-chain chlorinated paraffins in environmental samples using comprehensive two-dimensional gas chromatography with micro electron capture detection[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2014,406(29):7561-7570. |
| APA | Xia, Dan,Gao, Lirong,Zhu, Shuai,&Zheng, Minghui.(2014).Separation and screening of short-chain chlorinated paraffins in environmental samples using comprehensive two-dimensional gas chromatography with micro electron capture detection.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,406(29),7561-7570. |
| MLA | Xia, Dan,et al."Separation and screening of short-chain chlorinated paraffins in environmental samples using comprehensive two-dimensional gas chromatography with micro electron capture detection".ANALYTICAL AND BIOANALYTICAL CHEMISTRY 406.29(2014):7561-7570. |
入库方式： OAI收割
来源：生态环境研究中心
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