Dissolved iron (dFe) and copper (dCu), the concentration and the conditional stability constants of organic binding ligands (L_Fe, L_Cu, log K^cond_Fe3+L and log K^cond_Cu2+L) were studied in the surface coastal waters of the Macaronesia region (Cape Verde, Canary Islands, and Madeira) using competitive ligand exchange-adsorptive cathodic stripping voltammetry (CLE-ACSV). Two oceanic stations were also studied: the Cape Verde Ocean Observatory (CVOO) and the European Station for Time Series in the Ocean in the Canary Islands (ESTOC). Dissolved Fe varied from 0.46 to 1.32 nM and L_Fe concentrations were between 0.56 and 2.96 nM. More than 98% of the total dFe was complexed with conditional stability constants (log K^cond_Fe3+L) between 20.77 and 21.90 (L₂-type ligands). Dissolved Cu concentrations ranged between 0.07 and 4.03 nM and the amount of L_Cu varied between 0.54 and 2.59 nM, with more than 99% of dCu organically complexed. The conditional stability constant (log K^cond_Cu2+L) showed values between 13.40 and 14.42 (L₁-type).

Due to biological activity and water mixing induced by the wind around the islands, dissolved metals and ligand concentrations were greater at the coastal stations than in oceanic water. Variations were observed between the eastern and western parts of Fogo, Tenerife and Gran Canaria. On the east coasts, the increase in dissolved metals and ligand concentrations were related to wind-induced water mixing. The results of this study will contribute to the knowledge about the impact of coastal areas on the Fe and Cu biogeochemical cycles.

研究了沿海表层水域的溶解铁 (dFe) 和铜 (dCu)、有机结合配体 (L _Fe、 L _Cu、 log K ^cond _Fe3+L和 log K ^cond _Cu2+L ) 的浓度和条件稳定性常数Macaronesia 地区（佛得角、加那利群岛和马德拉群岛）使用竞争性配体交换吸附阴极溶出伏安法 (CLE-ACSV)。还研究了两个海洋站：佛得角海洋观测站 (CVOO) 和加那利群岛海洋时间序列欧洲站 (ESTOC)。溶解铁从 0.46 到 1.32 nM 和 L _Fe浓度在 0.56 和 2.96 nM 之间。超过 98% 的总 dFe 与20.77 和 21.90 之间的条件稳定性常数 (log K ^cond _{Fe3+L ) (L 2}型配体) 络合。溶解的 Cu 浓度在 0.07 和 4.03 nM 之间，L _Cu的量在 0.54 和 2.59 nM 之间变化，超过 99% 的 dCu 有机络合。条件稳定常数（log K ^cond _Cu2+L）显示在13.40 和14.42 之间的值（L ₁型）。

由于岛屿周围的风引起的生物活动和水混合，沿海站点的溶解金属和配体浓度高于海水中的浓度。福戈、特内里费岛和大加那利岛的东部和西部地区存在差异。在东海岸，溶解金属和配体浓度的增加与风引起的水混合有关。这项研究的结果将有助于了解沿海地区对铁和铜生物地球化学循环的影响。