any of various techniques for the separation of complex mixtures that rely on the differential affinities of substances for a gas or liquid mobile medium and for a stationary adsorbing medium through which they pass,such as paper,gelatin,or magnesia

• 色谱法，分离复杂混合物的多种技术，依靠物质对于气体或液体运动介质和静止的吸附介质（如纸、凝胶或氧化镁）的不同亲和力达到分离