Uptake of heavy metals from copper and lead spiked sediments by Echinocardium cordatum

This data set describes the concentrations of copper, lead and iron in the calcareous tests of heart urchins that were exposed to spiked sediments for 60 days.Porewater is the water extracted from between sand grains. Filtered porewater has been filtered. DGT stands for Diffuse Gel Transfer.The HCl extraction listed in one of the excel spreadsheets is an extraction from the actual sediment.The fields in this dataset are:IsotopeConcentrationPorewaterFiltered PorewaterDGT Porewater本数据集记录了暴露于加标沉积物中60天的心形海胆钙质壳体中的铜、铅与铁浓度。孔隙水（Porewater）指从砂粒间隙中提取的水体；过滤后孔隙水（Filtered Porewater）为经过滤处理的孔隙水。DGT（Diffuse Gel Transfer）即扩散凝胶传质技术。其中一份Excel电子表格中记载的HCl萃取法，为针对实际沉积物的萃取方式。本数据集包含以下字段：同位素（Isotope）、浓度（Concentration）、孔隙水（Porewater）、过滤后孔隙水（Filtered Porewater）、DGT孔隙水（DGT Porewater）