Welcome!This site serves as the distribution point for the "freeware" sedimentation velocity data analysis programs SVEDBERG and DCDT+ developed by John Philo, as well as his AUC scan graphing utility XLGRAPH.
Each of these programs has its own page with descriptions of its features and other information. You can download these programs from the Download page.
The public domain program SEDNTERP is now supported and distributed through the Biomolecular Interaction Technologies Center (BITC) at the University of New Hampshire (the distribution and Help files can be found here.) However the older version 1.09 is still available here from the Download page.
The links page points to many useful web resources for analytical ultracentrifugation, other biophysical techniques, and other helpful sites for protein chemists.
personal e-mail: jphilo (at) mailway.com