1. Abbreviations used: CCC = countercurrent chromatography; HPLC = high performance liquid chromatography; TLC = thin layer chromatography; Boc = butyloxycarbonyl; Tos = tosyl; CBZ = carbobenzoxy; Bzl = benzyl; Fmoc = fluorenylmethyl-oxycarbonyl; Xan = xanthydryl; PTFE = polytetrafluoroethylene; CCK = cholecystokinin; BBN = bombesin; DMF = dimethylformamide.
2. Ito, Y. 1983.Methods in Enzymology 91Edited by: Hirs, C. H. W. and Timasheff, S. N. 335N. Y.: Academic Press.
3. Purification of Solid-Phase Synthesized Peptides on the Coil Planet Centrifuge