中文摘要：

Hofmeister离子序列涉及到的问题十分广泛，对很多化学和生物体系都有影响。关于Hofmeister离子序列调控水溶液中大分子溶质行为的作用机制，目前的研究主要有两类观点：一类认为Hofmeister离子是通过与水分子相互作用间接影响水溶液中大分子溶质的存在状态及聚集行为；而另一类则认为Hofmeister离子与水溶液中大分子溶质之间存在直接相互作用是导致Hofmeister离子序列的内在原因。本文详细介绍了上述两类观点的研究工作，并对该领域的最新进展进行了评述。由于实际体系中可能存在水分子-水分子、水分子-离子、水分子．溶质分子、阴离子-阳离子等众多复杂的相互作用，上述两类观点其实都只是从一个侧面解释了Hofmeister离子序列，对Hofmeister离子序列及其作用机制的研究仍然有待深入。

英文摘要：

Hofmeister ion series is ubiquitous and turns up frequently in many chemical and biological processes. The explanations for its mechanism of action on target macromolecules in aqueous solutions fall into two categories. The first one states that ions affect the behavior of macromolecular solutes in the aqueous solution by interacting with water, while the other one claims that direct interactions between ions and macromolecules are the key point for comprehending the Hofmeister ion series. In this paper, research works on the two mechanisms of action are elaborately reviewed. In fact, actual solution systems are inevitably complicated by rather delicate balance of all the interactions （e. g., water-water, water-ion, water-solute, ion-solute, cation-anion） and the above mentioned two viewpoints explain the Hofmeister ion series just from one side. More work is still needed to dig into the secret behind the Hofmeister ion series.