The following data are for a GLC column: L= 35.5 cm, flow rate 0.303 mL/min A chromatogram of a mixture of the following compounds provide the following data: tR W (min) (min) Air 0.9 Benzene 5.0 0.71 Toluene 7.9 0.82 Xylene 8.4 1.16 Calculate: a. The number of plates from each peak. b. The mean for N. C. The plate height H.
The following data are for a GLC column: L= 35.5 cm, flow rate 0.303 mL/min A chromatogram of a mixture of the following compounds provide the following data: tR W (min) (min) Air 0.9 Benzene 5.0 0.71 Toluene 7.9 0.82 Xylene 8.4 1.16 Calculate: a. The number of plates from each peak. b. The mean for N. C. The plate height H.
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter26: An Introduction To Chromatographic Separations
Section: Chapter Questions
Problem 26.14QAP
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Transcribed Image Text:The following data are for a GLC column: L= 35.5 cm, flow rate = 0.303 mL/min
A chromatogram of a mixture of the following compounds provide the following data:
(min)
(min)
Air
0.9
|
Benzene
5.0
0.71
Toluene
7.9
0.82
Xylene
8.4
1.16
Calculate:
a.
The number of plates from each peak.
b. The mean for N.
C.
The plate height H.
From the data above, calculate the resolution for
d. Benzene and toluene.
e. Toluene and xylene.
F. Benzene and xylene.
g. The length of column required to achieve an average resolution of 4.50.
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