Retention times with a 1.10 m gas-liquid chromatographic column: air, 18.0 s; methyl acetate, 1.98 min.; methyl propionate, 2.24 min; methyl n-butyrate, 7.93 min.Base widths of the last three peaks: 0.19; 0.23 and 0.79 min, respectively. Calculate:a) the value of k for each compound,b) the alpha value for each pair of adjacent peaks,c) the theoretical number of plates and the plate height of each column;d) the resolution of every two adjacent compounds.

Retention times with a 1.10 m gas-liquid chromatographic column: air, 18.0 s; methyl acetate, 1.98 min.; methyl propionate, 2.24 min; methyl n-butyrate, 7.93 min.Base widths of the last three peaks: 0.19; 0.23 and 0.79 min, respectively. Calculate:a) the value of k for each compound,b) the alpha value for each pair of adjacent peaks,c) the theoretical number of plates and the plate height of each column;d) the resolution of every two adjacent compounds.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter88: Column Chromatography

Section: Chapter Questions

Problem 4P

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