Question

what desirable properties should an ideal stationary phase have?

list 4 different kinds of measures that can be taken to improve the column efficiency in a chromatographic seperation.

Answer 1

Desirable properties of an ideal stationary phase are:

1) Has different adsorptivity for each sample component in order to ensure separation

2) As a wide array of operating temperatures

3) It has to be chemically stable

4) have a low vapour pressure at high operating temperatures

4 different kinds of measures that can be taken to improve the column efficiency:

1) Dimension of the column

2) Particle size of the matrix

3) Solvents

4)Temperature

5) Flow Rate

6) Packing