A student analyzes sample 1, and sample 2 chromatograms of a mixture containing two compounds (A + B). The following data is obtained: Sample 1: Retention time Area Height % Area 0.210 19.20 15.68 5.57 0.650 243.62 89.37 70.74 1.74 81.57 13.42 23.68 Sample 2: 0.290 64.81 49.90 12.17 0.69 11.61 4.19 2.18 1.95 456.31 43.46 85.66 Using the data from the four compounds below, answer the following questions: Compound (b.p. °C) Retention time Area Height % Area Air 0.280 14.29 8.85 2.81 Hexane (69) 0.666 93.40 33.76 18.34 Cyclohexane (80.7) 0.980 124.66 30.48 24.48 Pentane (98.4) 1.216 112.27 24.18 22.05 Toluene (110.6) 1.830 164.59 21.64 32.32
A student analyzes sample 1, and sample 2 chromatograms of a mixture containing two compounds (A + B). The following data is obtained: Sample 1: Retention time Area Height % Area 0.210 19.20 15.68 5.57 0.650 243.62 89.37 70.74 1.74 81.57 13.42 23.68 Sample 2: 0.290 64.81 49.90 12.17 0.69 11.61 4.19 2.18 1.95 456.31 43.46 85.66 Using the data from the four compounds below, answer the following questions: Compound (b.p. °C) Retention time Area Height % Area Air 0.280 14.29 8.85 2.81 Hexane (69) 0.666 93.40 33.76 18.34 Cyclohexane (80.7) 0.980 124.66 30.48 24.48 Pentane (98.4) 1.216 112.27 24.18 22.05 Toluene (110.6) 1.830 164.59 21.64 32.32
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:c. What is the composition of the lower boiling compound in Sample 1?
d. What is the composition of the higher boiling compound in Sample 2?
Transcribed Image Text:A student analyzes sample 1, and sample 2 chromatograms of a mixture containing two
compounds (A + B). The following data is obtained:
Sample 1:
Retention time
Area
Height
% Area
0.210
19.20
15.68
5.57
0.650
243.62
89.37
70.74
1.74
81.57
13.42
23.68
Sample 2:
0.290
64.81
49.90
12.17
0.69
11.61
4.19
2.18
1.95
456.31
43.46
85.66
Using the data from the four compounds below, answer the following questions:
Compound (b.p. °C) Retention time
Area
Height
% Area
Air
0.280
14.29
8.85
2.81
Hexane (69)
0.666
93.40
33.76
18.34
Cyclohexane (80.7) 0.980
124.66
30.48
24.48
Pentane (98.4)
1.216
112.27
24.18
22.05
Toluene (110.6)
1.830
164.59
21.64
32.32
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