萃取色层是一种以有机萃取剂吸附在惰性支持体上作为固定相、水溶液作为流动相的色层分离方法。它把溶剂萃取的选择性特点以及色层分离的高效性特点结合起来,成为一种有效的金属分离技术。近十几年来,在无机金属离子和放射性元素分离的研究和应用中,已经有了很大的发展。 The extraction chromatography is a chromatographic separation method in which an organic extractant is adsorbed on an inert support as a stationary phase and an aqueous solution is used as a mobile phase. It combines the selective nature of solvent extraction and the high efficiency of chromatography to become an effective metal separation technique. In the recent ten years, great progress has been made in the research and application of the separation of inorganic metal ions and radioactive elements.