In either case, before further experiments can be performed, the biomolecule must be separated from the other substances in the cell extract and purified. Chromatography techniques provide scientists ...

A pencil line is drawn, and spots of ink or plant dye are placed on it. There is a container of solvent, such as water or ethanol. A pure substance will only produce one spot on the chromatogram ...

Chromatography has long been the ... rectangular zones of the pure and—if need be—highly concentrated substances lined up according to stationary-phase affinity (see Fig.

Scientists engaged in molecular biology or molecular medicine require proteins in their pure form ... in the chromatography ...

A demonstration of the key points of the required practical to investigate the separation of substances using paper chromatography ... Prepare a pure, dry sample of a soluble salt from an ...