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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 300.0 250.0 200.0 150.0 100.0 50.0 0.0 1.0 1.1 Unretained 1.2 1.5

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 300.0 250.0 200.0 150.0 100.0 50.0 0.0 1.0 1.1 Unretained 1.2 1.5

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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. in (c) Detector Signal 300.0 250.0 200.0 150.0 100.0 50.0 0.0 1.0 Unretained 1.2 1.3 1.4 1.5 time (min) Calculate the retention factors for each peak. 1.5
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. in (c) Detector Signal 300.0 250.0 200.0 150.0 100.0 50.0 0.0 1.0 Unretained 1.2 1.3 1.4 1.5 time (min) Calculate the retention factors for each peak. 1.5
Expert Solution
Step 1

To calculate the retention factor for each peak of the following chromatogram. 

Chemistry homework question answer, step 1, image 1

The retention factor for a chromatogram can be calculated by using the following expression: 

Retention factor = tR -tmtm

Where tR is the retention time, tm is the time taken by the unretained peak. 

 

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