Despite the increasing number of articles on trace elemental speciation with magnetic solid phase extraction (MSPE), there are no dedicated reviews that cover the group of elements with most related literature, and hence the need for this one. This article provides a comprehensive review of the relevant literature related to Cr, Hg, As, Se, and other metals and metalloids with a special focus on the sorbents, species determined, interactions involved between them and applications, mainly to environmental, food and biological samples. Moreover, this review covers the analysis of metallic nanoparticles (NPs) and the ions that are generated from them as a new facet of speciation. The analytical performance of the methods is addressed from a presentative and critical point of view and, finally, future trends and the related challenges are shown.

尽管有关使用磁固相萃取（MSPE）进行痕量元素形态分析的文章的数量在增加，但没有专门的评论涵盖大多数相关文献中涉及的元素组，因此需要该文献。本文对与Cr，Hg，As，Se和其他金属和准金属有关的相关文献进行了全面回顾，特别着重于吸附剂，确定的物种，它们之间的相互作用以及与应用之间的相互作用，主要涉及环境，食品和生物样品。此外，本篇综述涵盖了金属纳米颗粒（NPs）以及由金属纳米颗粒产生的离子的形成，作为一种新的形态学分析。该方法的分析性能是从代表和批判的角度出发，最后显示了未来的趋势和相关的挑战。