Book excerpt: Techniques in Protein Chemistry III compiles papers presented at the Fifth Protein Society Symposium in Baltimore on June 22-26, 1991. This book discusses the protein and peptide recovery from PVDF membranes; high-sensitivity peptide mapping utilizing reversed-phase microbore and microcolumn liquid chromatography; and capillary electrophoresis for preparation of peptides and direct determination of amino acids. The TFMSA/TFA cleavage in t-Boc peptide synthesis; applications of automatic PTC amino acid analysis; and identification of O-glycosylation sites with a gas phase sequencer are also elaborated. This text likewise covers the conformational stability of the molten globule of cytochrome c and role of aqueous solvation in protein folding. This publication is useful to students and researchers interested in methods and research approaches on protein chemistry.