Journal
ACS ES&T WATER
Volume 1, Issue 8, Pages 1975-1982Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsestwater.1c00162
Keywords
dissolved organic matter; FT-ICR MS; organosulfates; lignin; tannin; tandem mass spectrometry
Categories
Funding
- National Natural Science Foundation of China [42007290, 41625014]
- German Research Foundation [DFG VO 1355/4-3]
Ask authors/readers for more resources
Dissolved organic matter (DOM) is a complex mixture of organic compounds at the land/ocean-atmosphere interface. Utilizing Fourier transform ion cyclotron resonance mass spectrometry with liquid chromatography can effectively analyze and characterize various compounds in DOM, providing insights into their potential sources and reaction mechanisms.
Dissolved organic matter (DOM) is an ultracomplex mixture of organic compounds in the land/ocean-atmosphere interface. Normally, polar compounds from DOM are hardly retained by liquid chromatography (LC) columns for further analytical purposes. Here, we utilized Fourier transform ion cyclotron resonance mass spectrometry with LC for online analysis of DOM in river water and rainwater. With sophisticated instrumental optimization, different portions of metal salts, carboxyl-rich alicyclic molecules, organosulfates (OSs), and lignin-like compounds could be fully fractionated within one LC cycle (20 min). The complexity of the analyte was greatly reduced by LC separation, which therefore allows much better MS performance. Moreover, the compounds' structures were characterized by tandem mass spectrometry (MSn). The protocol presented herein offers a novel insight into the conventional LC-MS method, that it has the potential to investigate OSs and other components in DOM according to specific functional groups and heteroatoms and to explore their potential sources and reaction mechanisms.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available