Worksheet: Chromatograms

In this worksheet, we will practice identifying common features of chromatograms, including solvent fronts and tailing and fronting effects.

Q1:

The “void peak” in a chromatogram corresponds to which of the following?

  • AComponents that had no interaction with the mobile phase.
  • BThe peak that arises from poor selection of a stationary phase.
  • CComponents that had no interaction with the stationary phase.
  • DAll peaks after the first peak in the chromatogram.
  • EThe peak that arises from the mobile phase only.

Q2:

“Tailing” of a chromatographic peak is a result of which of the following?

  • AOverloading the column with sample
  • BSmall theoretical plate heights
  • CInteractions of the solute with the stationary phase
  • DInteractions between the stationary and mobile phases
  • EToo many theoretical plates

Q3:

“Fronting” of a chromatographic peak is a result of which of the following?

  • AInteractions of the solute with the stationary phase
  • BOverloading the column with sample
  • CSmall theoretical plate heights
  • DInteractions between the stationary and mobile phases

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.