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.海洋油雪样本采集自中宇宙与滚台实验，并通过电喷雾电离联用傅里叶变换离子回旋共振质谱法（electrospray ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry，ESI-FTICR-MS）完成分析。本数据集包含仪器直接输出的原始质荷比（mass-to-charge ratio，m/z）数据及其峰强度数据，以及用于分析的已处理Excel文件。本项目中，采集自加尔维斯顿湾的海水含有浮游生物（plankton），经过滤以去除浮游动物（zooplankton）与海洋碎屑（debris）后，分别与水包油组分（water accommodated fraction，WAF）或化学强化型水包油组分（chemically enhanced WAF，CEWAF）混合于中宇宙培养罐内。同时设置了未添加WAF与CEWAF的对照组实验。经过固定时长的培养后，对培养罐进行破坏性采样以获取海洋油雪样本。海洋油雪样本同样通过ESI-FTICR-MS完成分析。