Chromatography Principles Quiz

Chromatography Principles Quiz

Created by
@SensationalBigfoot

Questions and Answers

What is the main principle used in TLC?

Adsorption

Which type of interactions play a key role in TLC for polar molecules?

Dipole-dipole interactions

What determines the movement of a substance in TLC?

Its interaction with the stationary phase

What does Rf refer to in TLC?

<p>Retention or retardation factor</p> Signup and view all the answers

Which factor causes substances to separate on the stationary phase in TLC?

<p>Their affinity towards the stationary phase</p> Signup and view all the answers

What is represented by the Rf value in TLC?

<p>The distance traveled by the solute relative to the solvent front</p> Signup and view all the answers

What is the advantage of using sulfuric acid/heat to visualize compounds in TLC?

<p>Leaves charred blots behind</p> Signup and view all the answers

Which step is critical in running a TLC to avoid immersion of the spotting area in the mobile phase?

<p>Spotting the sample using a capillary tube or micropipette</p> Signup and view all the answers

Why is ninhydrin reagent useful in TLC analysis?

<p>Reacts with amino acids to reveal fingerprints</p> Signup and view all the answers

What characterizes the UV light technique for visualizing compounds in TLC?

<p>Long wavelength results in compounds glowing</p> Signup and view all the answers

More Quizzes Like This

Use Quizgecko on...
Browser
Browser