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Bridging microbial diversity and chemodiversity of dissolved organic matter to better constrain processes in biogeochemical cycles
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Comparison of dissolved organic matters isolated from resin-in-tandem and electrodialysis coupled with reverse osmosis techniques.
P-M4-01
Song Guixue* , Institute of Marine Science and Technology, Shandong University, Qingdao, China
Gao Yuhan, The Environmental Science & Engineering Department, Shandong University, Qingdao, China
Shi Quan, State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleu, Beijing
Presenter Email: songgx@sdu.edu.cn |
| Marine dissolved organic matter (DOM) is important for global biogeochemical cycles and also plays imporcomplexicity tant roles in the response of ecosystems to climate change. Isolation and fraction of marine DOM can help us to better understand the composition and structural complexcity of this ubiquitous natural organic matter. Characterization of different marine DOM fractions in molecular level may provide useful hints about labile and refractory DOC. We are carrying out isolation of DOM using DAX-8 and XAD-4 resins-in-tandem and electrodialysis/reverse osmosis techniques for a coastal seawater. The isolated samples are analyzed by 3D fluorescence spectrum, solid-state 13C NMR spectrometry, ultrahigh resolution of FTICR-MS, etc.
Key words: DOM, DAX-8, XAD-4, electrodialysis, reverse osmosis, characterization |
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