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.

本数据集所分析的样品于2014年夏季在西佛罗里达大学（University of West Florida）制备完成。实验采用替代原油与马孔多（Macondo，MC252）原油，在无菌海水中制备水容馏分（Water Accommodated Fractions, WAF）的过程中，将两类原油暴露于太阳辐射之下。样品在为期一周的培养周期内，分别接受三种光照处理：全太阳光照射、仅光合有效辐射（Photosynthetically Active Radiation, PAR）照射，以及完全黑暗环境培养。样品经二氯甲烷萃取后，送至位于佛罗里达州塔拉哈西的国家高磁场实验室（National High Magnetic Field Laboratory）开展分析。对每份萃取物均开展正、负电喷雾电离傅里叶变换离子回旋共振质谱（Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, FT-ICR MS）分析。本数据集包含的元数据，为每份样品电喷雾电离（Electrospray Ionization, ESI）分析结果的处理后Excel文件，这些数据被用于制作原研究论文中的对比图表。