Dissolved trace element concentration profiles of micronutrients (Mn, Ni, Cu, Zn, Co) and contaminants (Cd, Pb) in seawater from discrete bottle samples from CCE Process Cruises in the California Current System, 2021 - 2025 (ongoing).

Dissolved trace element is sampled from the trace metal clean rosette. The sample is collected by filtering seawater through a 0.2µm PES filter. The seawater sample is then acidified to pH~1.8 using ultra clean hydrochloric acid and subsequently analyzed using sector-field inductively coupled plasma-mass spectrometry, scanning in low and medium resolution, with either standard curve or isotope dilution methods. The samples are used to develop a description of the distribution of dissolved trace elements in the CCE region.

溶解态痕量元素样品采集自痕量金属洁净罗塞塔采水器，通过0.2µm聚醚砜（PES）滤膜过滤海水以制备该样品。随后，采用超纯盐酸将海水样品酸化至pH约1.8，继而通过扇形磁场电感耦合等离子体质谱法开展分析，分析过程采用低、中分辨率扫描模式，并选用标准曲线法或同位素稀释法进行定量。本批样品用于刻画CCE区域内溶解态痕量元素的分布特征。