Monthly newsletter and commercial resources for engineers, designers, consultants and end-users. Limited collection of technical articles from the Elsevier Science Group, Kidlington, Oxford, England.

One of three bulletin boards for discussing filtration problems, maintained by Spectrum Chromatography, Houston, TX.

Introduction to gel permeation chromatography as used in FPLC. Maintained by the Natural Toxins Research Center, Kingsville, Texas.