question h only only The figure below shows a portion of a GC chromatogram for a mixture of two aromaticcompounds labeled A and B. The separation employed a 2.50 meter packed column underisothermal conditions (90 °C) and a flow rate of 10 mL/min.(a)(b)(c)(d)(e)(f)(g)(h)Detector Signal300.0250.0200.0150.0100.050.00.01.01.1Unretained1.21.5time (min)1.7OFind 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.A baseline separation is seen if a resolution of or greater is achieved. (Fill in theblank). Calculate the number of plates needed to increase resolution of the two peaks sothis value for resolution is obtained, if k' and a remain constant.

To find out the resolution at which the base line separation can be achieved and to find out the…

(h) or greater is achieved. (Fill in the A baseline separation is seen if a resolution of blank). Calculate the number of plates needed to increase resolution of the two peaks so this value for resolution is obtained, if k' and a remain constant.

(h) or greater is achieved. (Fill in the A baseline separation is seen if a resolution of blank). Calculate the number of plates needed to increase resolution of the two peaks so this value for resolution is obtained, if k' and a remain constant.

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

Chapter27: Gas Chromatography

Section: Chapter Questions

Problem 27.22QAP

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Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

question h only only

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)
(h)
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
time (min)
1.7
O
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.
A baseline separation is seen if a resolution of or greater is achieved. (Fill in the
blank). Calculate the number of plates needed to increase resolution of the two peaks so
this value for resolution is obtained, if k' and a remain constant.

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