The figure below shows a portion of a GC chromatogram for a mixture of two aromatic compounds labeled A and B. The separation employed a 2.50 meter packed column under isothermal conditions (90 °C) and a flow rate of 10 mL/min. (a) (b) (c) (d) (e) (f) (g) Detector Signal 300.0 250.0 200.0 150.0 100.0 50.0 0.0 1.1 Unretained 1.5 time (min) Find the retention times for A and B. Find the times that components A and B spend in the stationary phase. Calculate the retention factors for each peak. Calculate the selectivity factor for the separation of A and B. Find the full widths of each peak. Calculate the resolution of the two peaks. Find the average number of plates for the column.

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The figure below shows a portion of a GC chromatogram for a mixture of two aromatic
compounds labeled A and B. The separation employed a 2.50 meter packed column under
isothermal conditions (90 °C) and a flow rate of 10 mL/min.
Detector Signal
(a)
(b)
(c)
(d)
(e)
(f)
(g)
300.0
250.0
200.0
150.0
100.0
50.0
0.0
1.0
Unretained
1.2
1.4
1.5
time (min)
Find the retention times for A and B.
1.0
nes that components A and B spend in the stationary phase.
Calculate the retention factors for each peak.
Calculate the selectivity factor for the separation of A and B.
Find the full widths of each peak.
Calculate the resolution of the two peaks.
Find the average number of plates for the column.
Transcribed Image Text:The figure below shows a portion of a GC chromatogram for a mixture of two aromatic compounds labeled A and B. The separation employed a 2.50 meter packed column under isothermal conditions (90 °C) and a flow rate of 10 mL/min. Detector Signal (a) (b) (c) (d) (e) (f) (g) 300.0 250.0 200.0 150.0 100.0 50.0 0.0 1.0 Unretained 1.2 1.4 1.5 time (min) Find the retention times for A and B. 1.0 nes that components A and B spend in the stationary phase. Calculate the retention factors for each peak. Calculate the selectivity factor for the separation of A and B. Find the full widths of each peak. Calculate the resolution of the two peaks. Find the average number of plates for the column.
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