A critical treatment of all aspects, containing definitive examples, detailed description of data handling, compilations of information on columns and column packings, and tables of important solvents and standard reference materials. Combines a basic, unified theory with practical know-how, integrating methods of gel permeation and gel filtration chromatography. Provides an understanding of molecular characterization problems as well as a background for developing new and improved characterization methods and apparatus for HPSEC performed with columns of small particles at high pressures.