Dataset for: Photochemical changes in water accommodated fractions of MC252 and surrogate oil created during solar exposure as determined by FT-ICR MS

Samples analyzed for this dataset were prepared in summer 2014 at the University of West Florida. Both surrogate and Macondo (MC252) crude oils were exposed to solar radiation during the formation of Water Accommodated Fractions (WAF) in sterile seawater. Samples were incubated with various light exposures (full sunlight, Photosynthetically Active Radiation [PAR] only), or in darkness over the course of a week. Samples were extracted using dichloromethane and analyzed at the National High Magnetic Field Laboratory in Tallahassee, FL. Positive and negative electrospray ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) analyses was performed for each extract. The metadata contained in this dataset represent the processed excel files for ESI analysis for each sample. These were used to create the comparison plots in the original manuscript.