Worksheet: Selectivity and Resolution in Chromatography
In this worksheet, we will practice using the retention (Rf) values of fractions to calculate the resolution and selectivity of a chromatography method.
In a chromatographic analysis of an unknown mixture, compound A has a retention time of 5.56 minutes and a baseline width of 0.87, and compound B has a retention time of 6.32 minutes and a baseline width of 0.53 minutes. Are these peaks resolved? What is the resolution between the two peaks?
- AThere is not enough information given to determine resolution.
- BYes, 1.09
- CYes, 0.54
- DNo, 1.09
- ENo, 0.54