Physical Techniques in Biological Research, Second Edition, Volume II, Part B: Physical Chemical Techniques covers physical chemical techniques that have been most widely employed in the investigation of molecules of biological significance. The book discusses the measurement and properties of ionizing radiations; magnetic resonance and related techniques in magnetic susceptibility measurements; and chromatographic methods and applications of chromatography to steroid research. The text then describes the phenomenon of centrifugation, including the techniques for studying density gradient centrifugation; the formation of gradient column in swinging-bucket tubes; gradient materials; density gradient centrifugation in heavy salt; some factors influencing the distribution of sedimenting particles; and the recovery of samples. Biological investigators and students of biophysics or biochemistry will find the book invaluable.