Trace metal data from water samples during METEOR cruise M135

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.).

本数据集包含表层水样及各站位深度剖面水样中的溶解态与总溶解态痕量金属（Fe、Co、Mn、Ni、Cd、Cu、Pb、Zn及V）浓度、过氧化氢（H₂O₂）、亚铁离子（Fe(II)），以及碘离子与碘酸根浓度。其中痕量金属浓度经预富集步骤后，采用电感耦合等离子体质谱法（ICP-MS）完成测定（Rapp等，2017，Anal. Chim. Acta）；亚铁离子与过氧化氢采用化学发光流动注射分析法在船载平台完成原位分析（Hopwood等，2017，Sci. Rep.）；碘离子浓度通过阴极溶出方波伏安法测定（Luther等，1988，Anal. Chem.），碘酸根浓度则采用分光光度法完成检测（Chapman与Liss，1977，Mar. Chem.）。