| Selectivity of solid phase extraction for dissolved organic matter in the hypersaline Da Qaidam Lake, China | |
Yang, Keli ; Zhang, Yaoling; Dong, Yaping; Li, Wu
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| 第一作者 | Yang, Keli |
| 2017-11-01 | |
| 发表期刊 | ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
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| ISSN | 2050-7887 |
| 卷号 | 19期号:11页码:1374-1386 |
| 摘要 | Dissolved organic matter (DOM) was isolated from the hypersaline Da Qaidam Lake using solid-phase extraction (SPE) methods with five different adsorbents: ENVI-Carb (non-porous graphitized carbon), HLB, PPL, and XAD-8 (polymer based), and ENVI-18 (silica based). Structure-selective assessments of SPE-DOM isolated using the different adsorbents were conducted using a combination of complementary analysis techniques, including dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) analysis, as well as elemental analysis, Fourier transformed infrared spectroscopy (FTIR), H-1 nuclear magnetic resonance (H-1 NMR) and pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS). The results indicated that the modified polymer based adsorbents (PPL and HLB) exhibited higher DOC recoveries than the others. The PPL and ENVI-Carb cartridges can recover representative nitrogen-containing organic components from the hypersaline lake. The SPE-DOM isolates obtained using ENVI-18 and XAD-8 adsorbents contained higher proportions of purely aliphatic, alkene, and aromatic compounds; the ENVI-Carb and PPL adsorbents showed higher affinity for polar functionalized aliphatic and nitrogen-containing compounds; HLB isolate was enriched with oxygen-rich organic compounds and sulphur-bearing components. The structural and compositional features of SPE-DOM from the hypersaline Da Qaidam Lake indicated the predominately autochthonous sources of organic matter in the lake. |
| DOI | 10.1039/c7em00263g |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34542 |
| 专题 | 盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Yang, Keli,Zhang, Yaoling,Dong, Yaping,et al. Selectivity of solid phase extraction for dissolved organic matter in the hypersaline Da Qaidam Lake, China[J]. ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,2017,19(11):1374-1386. |
| APA | Yang, Keli,Zhang, Yaoling,Dong, Yaping,&Li, Wu.(2017).Selectivity of solid phase extraction for dissolved organic matter in the hypersaline Da Qaidam Lake, China.ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,19(11),1374-1386. |
| MLA | Yang, Keli,et al."Selectivity of solid phase extraction for dissolved organic matter in the hypersaline Da Qaidam Lake, China".ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS 19.11(2017):1374-1386. |
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| Selectivity of solid（11005KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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