In recent years, graphene-based magnetic composites have attracted tremendous research interest owing to its exceptional properties, such as huge surface area, large delocalized π-electron system, strong magnetic responsiveness, and excellent mechanical/thermal stability. These promising properties together with the ease of processibility and functionalization render graphene-based magnetic composites to be ideal adsorbents in magnetic solid-phase extraction. In this review, we outline the state of the art on the preparation approaches for different graphene-based magnetic composites and its application as adsorbents in preconcentrating organic compounds, biological macromolecules, and metal ions. In addition, future research directions of this type of magnetic materials are identified as well.

近年来，基于石墨烯的磁性复合材料因其优异的性能而吸引了巨大的研究兴趣，例如巨大的表面积，大的离域π电子体系，强大的磁响应性以及出色的机械/热稳定性。这些有前途的性能以及可加工性和功能化的简易性使得基于石墨烯的磁性复合材料成为磁性固相萃取中的理想吸附剂。在这篇综述中，我们概述了不同石墨烯基磁性复合材料的制备方法的最新技术及其在预浓缩有机化合物，生物大分子和金属离子中作为吸附剂的应用。另外，还确定了这类磁性材料的未来研究方向。