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Luncheon Seminars #58: Utilizing ultrahigh resolution mass spectrum to characterize the molecular composition of water soluble organic carbon in the aerosols from China coastal seas to Northwestern Pacific Ocean
2016/6/16 1976
2016-06-20 11:40-13:30(12:20开讲)
Dr. Hongyan Bao, Junior Fellow
A3-206, Zhou Long Quan Building

Abstract:

The implication of ultrahigh resolution mass spectrum Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR-MS) has expanded our knowledge of the molecular compositions of natural organic matter. Atmospheric deposition contribute a non-negligible fraction of organic carbon (OC) to the ocean. However, information regarding the molecular composition of the atmospheric OC is limited. We first applied FT-ICR-MS to a large aerosol sample set to characterize the water soluble organic carbon (WSOC) composition of oceanic aerosols. Our results showed that owing to the powerful resolving capacity, we can identify thousands of compounds in each aerosol sample. Based on the molecular composition, we can further identify the primary sources of WSOC in the aerosols, and how atmospheric processes affected the molecular composition of WSOC in the coastal seas and open ocean.

 

Brief CV:

RESEARCH & WORKING EXPERIENCE

l  2015/08-2016/05 Junior Fellow, Hanse-Wissenschaftskolleg (HWK), Delmenhorst, Germany

l  2013/05-present Postdoc, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University

l  2013/02-2013/05 Research Scientist, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University

l  2011/09-2012/02 Visiting fellow, Geological institute, ETH Zurich, Switzerland

 

EDUCATION

l  2007/09-2012/12 Doctoral student, State Key Laboratory of Estuarine and Coastal Research, East China Normal University, China

l  PhD dissertation: The sources, transportations and transformations of dissolved and particulate terrestrial organic matter in typical river and estuary systems

l  2003/07-2007/06 Bachelor in Chemistry, Department of Chemistry, East China Normal University, China

l  Bachelor dissertation: Analysis of pigments in E5 core sediments in the Changjiang Estuary

 

RESEARCH INTEREST

l  Using biomarker (lignin phenols and black carbon) and isotope (stable and radio carbon isotope, stable nitrogen isotope) to trace the land-to-ocean terrestrial organic matter transport;

l  Implying the state-of-art technology FT-ICR-MS to trace the detailed organic matter composition of variable environmental samples (river, estuary, ocean and aerosol);

l  Impact of extreme rain events on the land-to-ocean transport and export of terrestrial organic matter

l  Impact of human activities on the fluvial and estuarine organic matter transport.

 

 



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