JThe following đată packed column: Compound R, min W, min OLD Air, Methylcyclohexane Methylcyclohexene Toluene 1.9 10.0 0.76 10.9 0.82 13.4 1.06

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 26.18QAP
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Only 26-18 26-19 Same question just subpart
26-18 The following data were obtained by gas-liquid chromatography on a 40-cm
packed column:
Compound
tR, min
W, min
Air
Methylcyclohexane
Methylcyclohexene
OLD
26-16
1.9
10.0
0.76
10.9
0.82
Toluene
13.4
1.06
Calculate
(a) an average number of plates from the data.
(b) the standard deviation for the average in (a).
(c) an average plate height for the column.
*26-19 Referring to Problem 26-18, calculate the resolution for
(a) methylcyclohexene and methylcyclohexane.
(b) methylcyclohexene and toluene.
(c) methyleyclohexane and toluene.
Transcribed Image Text:26-18 The following data were obtained by gas-liquid chromatography on a 40-cm packed column: Compound tR, min W, min Air Methylcyclohexane Methylcyclohexene OLD 26-16 1.9 10.0 0.76 10.9 0.82 Toluene 13.4 1.06 Calculate (a) an average number of plates from the data. (b) the standard deviation for the average in (a). (c) an average plate height for the column. *26-19 Referring to Problem 26-18, calculate the resolution for (a) methylcyclohexene and methylcyclohexane. (b) methylcyclohexene and toluene. (c) methyleyclohexane and toluene.
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