Question

A chromatographic analysis is performed with a sample containing toluene and benzene. The column length was 10 m and the flow rate 30 mL/min.

Solute               tR                        W1/2

air                      1.5

benzene (A)     7.45                   1.05

toluene (B)       10.60                 1.45

Calculate the plate number for each peak.

Benzene: 201 plates and Toluene: 214 plates

Benzene: 214 plates and Toluene: 201 plates

Benzene: 58 plates and Toluene: 57 plates

Benzene: 57 plates and Toluene: 58 plates

Answer 1