An information database on internal pH gradients in chromatofocusing was de
veloped. The Windows 95/98/NT-based database contains information on model
and experimental pH gradients and has a user-friendly interface for informa
tion retrieval and new data input. The database also contains two embedded
programs: CF for simulating pH gradients by experimental conditions and ABC
for rapidly calculating particular sections in gradient profiles. Examples
of the use of embedded programs are given, and experimental and model pH g
radients are compared.