(i) Calculate the capacity factors (k') for both compounds A and B and the selectivity factor (a) between them, commenting on the values. (ii) Calculate the resolution between A and B and comment on it. (iii) Using the peak for A, calculate the number of theoretical plates for the GC column and comment on the quality of the column. A solution containing an equal parts (by weight) mixture of two liquids A and Bdissolved in ethanol was analysed by gas chromatography (GC) on a Carbowaxcolumn giving the chromatogram data in the Table below (retention time of anunretained solute was 1.2 min):Compound Retention time(min)9.5011.5ABBaseline width (min)0.350.45Integration25005000

Given: retention time, baseline width, integration of compounds A and B and the retention time of…

A solution containing an equal parts (by weight) mixture of two liquids A and B dissolved in ethanol was analysed by gas chromatography (GC) on a Carbowax column giving the chromatogram data in the Table below (retention time of an unretained solute was 1.2 min): Compound Retention time (min) 9.50 11.5 A B Baseline width (min) 0.35 0.45 Integration 2500 5000

A solution containing an equal parts (by weight) mixture of two liquids A and B dissolved in ethanol was analysed by gas chromatography (GC) on a Carbowax column giving the chromatogram data in the Table below (retention time of an unretained solute was 1.2 min): Compound Retention time (min) 9.50 11.5 A B Baseline width (min) 0.35 0.45 Integration 2500 5000

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter34: Miscellaneous Separation Methods

Section: Chapter Questions

Problem 34.2QAP

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