Trace metal data from water samples during METEOR cruise M136@en

The file contains dissolved and total dissolvable trace metal concentrations (Fe, Co, Mn, Ni, Cd, Cu, Pb, Zn and V), hydrogen peroxide (H2O2), Fe(II), and iodide and iodate concentrations of surface water samples and station depth profiles. Trace metal concentrations were measured by ICP-MS after preconcentration (Rapp et al. 2017, Anal. Chim. Acta). Fe(II) and H2O2 were analyzed on-board using chemiluminescence flow injection analysis (Hopwood et al. 2017, Sci. Rep.). Iodide concentrations were analyzed by cathodic stripping square wave voltammetry (Luther et al. 1988, Anal. Chem.) and Iodate concentrations were measured spectrophotometrically (Chapman and Liss 1977, Mar. Chem.).本数据集文件涵盖表层水样与站位深度剖面样品的溶解态及总溶解态痕量金属浓度（Fe、Co、Mn、Ni、Cd、Cu、Pb、Zn及V）、过氧化氢（H₂O₂）、Fe(II)以及碘化物与碘酸盐浓度。其中，痕量金属浓度经预富集后通过电感耦合等离子体质谱法（ICP-MS）测定（Rapp等，2017，Anal. Chim. Acta）；Fe(II)与过氧化氢采用化学发光流动注射分析法完成船载现场分析（Hopwood等，2017，Sci. Rep.）；碘化物浓度通过阴极溶出方波伏安法检测（Luther等，1988，Anal. Chem.）；碘酸盐浓度则采用分光光度法测定（Chapman与Liss，1977，Mar. Chem.）