Molecular level characterization of oil and aggregate oxidation products: Mesocosm LTMOSE, a Long Term Marine Oil Snow Experiment, Fourier transform ion cyclotron mass spectrometry (FTICR-MS) data

Marine oil snow samples were collected during the mesocosm/roller table experiments and analyzed by Fourier transform ion cyclotron resonance mass spectrometry coupled with electrospray ionization (ESI-FTICR-MS). The dataset contains the raw mass-to-charge ratio (m/z) and their peak intensity data directly from the instrument and the processed excel files used for analysis. In this project, seawater obtained from Galveston Bay, containing plankton but filtered to exclude zooplankton and debris, was mixed with either water accommodated fraction (WAF) or chemically enhanced WAF (CEWAF) in mesocosm tanks. A control experiment containing neither WAF nor CEWAF was also conducted. After fixed periods of incubation tanks were destructively sampled for marine snow. Marine snow was analyzed with Fourier transform ion cyclotron resonance mass spectrometry coupled with electrospray ionization.