Dissolved trace metals, rare earth elements, nutrients, and Pb isotopes in the eastern Mediterranean Sea

This dataset contains concentrations of dissolved trace metals (Al, Mn, Fe, Co, Ni, Cu, Zn, Cd, and Pb), rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu), macro-nutrients (TON, SiOH4 and PO4) and Pb isotope compositions (206Pb/207Pb, 208Pb/206Pb, 206Pb/204Pb, 207Pb/204Pb, 208Pb/204Pb) from two off-shore cruises (carried out in April 2018 and June 2021) in the eastern Mediterranean Sea. Seawater samples were collected using GO-Flo bottles, filtered (0.2 µm), and acidified to pH<1.8. All samples were pre-concentrated using the NOBIAS chelate PA-1 resin. Trace metal and rare earth elements concentrations were measured using an Agilent 7500cx Magnetic Sector ICP-MS (Benaltabet, T. et al., 2023). Trace metals from the April 2018 cruise were pre-concentrated on a SC-4 DX SeaFAST pico system and analysed using an Element XR High Resolution ICP-MS (Rapp, I. et al., 2017). Pb isotopes were measured using a Thermo-Scientific Neptune Plus Multi Collector ICP-MS (Benaltabet, T. et al., 2020). Macro-nutrient concentrations were measured using a Flow Injection Quik-Chem 8500 Auto-analyzer (Grasshoff, K. et al.(Eds.), 2009).

该数据集包含东地中海两次近海航次（2018年4月和2021年6月）中溶解态痕量金属（Al、Mn、Fe、Co、Ni、Cu、Zn、Cd和Pb）、稀土元素（La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb和Lu）、宏量营养素（TON、SiOH4和PO4）以及Pb同位素组成（206Pb/207Pb、208Pb/206Pb、206Pb/204Pb、207Pb/204Pb、208Pb/204Pb）的浓度数据。海水样品采用GO-Flo采水瓶采集，经0.2 µm过滤后酸化至pH<1.8。所有样品均使用NOBIAS螯合树脂PA-1进行预浓缩。痕量金属和稀土元素的浓度通过Agilent 7500cx磁扇区电感耦合等离子体质谱仪（ICP-MS）测定（Benaltabet, T.等，2023）。2018年4月航次的痕量金属通过SC-4 DX SeaFAST pico系统预浓缩，并使用Element XR高分辨率ICP-MS分析（Rapp, I.等，2017）。Pb同位素通过赛默飞世尔Neptune Plus多接收ICP-MS测定（Benaltabet, T.等，2020）。宏量营养素浓度通过流动注射Quik-Chem 8500自动分析仪测定（Grasshoff, K.等主编，2009）。