混合物的分离这一操作,是中学化学实验基本操作中比较重要、应用极广、高考试题中出现频率极高的知识点之一,按分离过程中物质变化的类型可分为:物理方法和化学方法,物理方法是通过某种实验操作,未经过化学变化而使混合物中的各组分相互分离开来的一种方法.下面就高中阶段常用的物理方法作以归纳、探讨,供平时学习或高考复习归纳整理时作一参考. Mixture separation of this operation is a more important high school chemistry experiments in the basic operation, a very wide application, the college entrance examination questions appear frequently one of the knowledge points, according to the type of material changes in the separation process can be divided into: physical methods and chemistry Method, the physical method is through some kind of experimental operation, without chemical changes so that the components of the mixture separated from each other a method below the high school phase commonly used physical methods for induction, to explore for peacetime learning or College entrance exam review summarized as a reference.