The purpose of this study is to implement a work that is a part of a project funded by the Italian National Antarctic Research Program (PNRA, Piano Nazionale di Ricerche in Antartide) within the main thematic focus “Chemical Contamination-Global Change”. This research was devoted to detect and characterize micro and nano components with strong complexing capability towards metal ions at trace level in sea water, lakes and lacustrine sediments, sampled during the XXII expedition of PNRA.

In particular, in the present work, the sorption complexation capacity of an Antarctic lacustrine sediments toward Cu(II) and Pb(II) is described. The characterization of the sorption was undertaken, studying kinetics and isotherm profiles. The lake here considered is Tarn Flat in the area of Terra Nova Bay. The sorption equilibria of Cu(II) and Pb(II) on the lacustrine sediments were reached in about 10 h, and they were best modelled by the Langmuir equation.

Preliminary, to establish if the data here obtained were consistent with those reported for the same area in other expeditions, a common multivariate techniques, namely the principal component analysis (PCA), was applied and finally the consistency of the data has been confirmed.

这项研究的目的是实施一项工作，该工作是由意大利国家南极研究计划（PNRA，安塔德特的Piano Nazionale di Ricerche资助）资助的项目的一部分，其主要主题为“化学污染－全球变化”。这项研究致力于检测和表征在PNRA第十二次探险中采样的海水，湖泊和湖相沉积物中微量金属元素具有很强的对金属离子的络合能力。

特别地，在本工作中，描述了南极湖沉积物对Cu（II）和Pb（II）的吸附络合能力。进行吸附的表征，研究动力学和等温线图。这里考虑的湖是Terra Nova湾地区的塔恩平原。大约10 h即可达到Cu（II）和Pb（II）在湖相沉积物上的吸附平衡，最好用Langmuir方程对其进行建模。

初步，为了确定此处获得的数据是否与其他考察中同一地区报道的数据一致，采用了通用的多元技术，即主成分分析（PCA），最后确定了数据的一致性。