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Selectivity of solid phase extraction for dissolved organic matter in the hypersaline Da Qaidam Lake, China
Yang, Keli1,2; Zhang, Yaoling1; Dong, Yaping1; Li, Wu1
2017-11-01
Source PublicationENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
Volume19Issue:11Pages:1374-1386
SubtypeArticle
AbstractDissolved 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.
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
WOS KeywordRESONANCE MASS-SPECTROMETRY ; AQUATIC FULVIC-ACIDS ; TMAH-PY-GC/MS ; GAS CHROMATOGRAPHY/MASS SPECTROMETRY ; TETRAMETHYLAMMONIUM HYDROXIDE TMAH ; PYROLYSIS-GC-MS ; HUMIC SUBSTANCES ; CHEMICAL-CHARACTERIZATION ; FRESH-WATER ; ELEMENTAL COMPOSITION
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS SubjectChemistry, Analytical ; Environmental Sciences
WOS IDWOS:000415331100002
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6278
Collection青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
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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