In this worksheet, we will practice identifying common features of chromatograms, including solvent fronts and tailing and fronting effects.
The “void peak” in a chromatogram corresponds to which of the following?
- AThe peak that arises from the mobile phase only.
- BThe peak that arises from poor selection of a stationary phase.
- CComponents that had no interaction with the mobile phase.
- DComponents that had no interaction with the stationary phase.
- EAll peaks after the first peak in the chromatogram.
“Tailing” of a chromatographic peak is a result of which of the following?
- AInteractions between the stationary and mobile phases
- BOverloading the column with sample
- CToo many theoretical plates
- DInteractions of the solute with the stationary phase
- ESmall theortetical plate heights
“Fronting” of a chromatographic peak is a result of which of the following?
- AInteractions of the solute with the stationary phase
- BInteractions between the stationary and mobile phase
- CSmall theortetical plate heights
- DOverloading the column with sample