Dissolved fatty acids at a near coastal site in the English Channel, 2019-2021

Dissolved fatty acids and dicacids were determined in sea-surface microlayer and underlying water samples collected off the southwestern UK coast. Sampling was conducted approximately weekly over 18 months. The majority of samples were collected from a near shore site in the footprint of the Penlee Point Atmospheric Observatory, while one in six samples were collected from the L4 site. Organic acids were determined by solid phase extraction followed by FAME derivatisation and quantification by GC-MS. These compounds are of interest because of their ability to react with ozone at the sea surface.

Embargoed until the publication of the associated research paper

对英国西南近海海域采集的海面微层（sea-surface microlayer）与下层海水样本中的溶解性脂肪酸与二元羧酸（dicacids）开展了定量测定。采样工作在18个月内以约每周一次的频次开展，其中大部分样本采集自彭利角大气观测站（Penlee Point Atmospheric Observatory）覆盖范围内的近岸站点，剩余六分之一的样本取自L4站点。有机酸的测定采用固相萃取（solid phase extraction）结合脂肪酸甲酯（Fatty Acid Methyl Ester, FAME）衍生化的前处理流程，随后通过气相色谱-质谱联用（GC-MS）完成定量分析。这类化合物因可在海表与臭氧发生反应而具备研究价值。
本数据集暂不公开，直至相关研究论文正式发表。