When separating a solid mixture by thin-layer chromatography, which of the following steps is not required?
Which spot corresponds to the product of the reaction with the highest polarity?
Which spot corresponds to the limiting reactant in this reaction?
Estimate the value of fraction 5, to 1 significant figure.
The stationary phase in ion exchange chromatography (IEC) is a cross-linked polymer resin with covalently attached functional groups. Which of the following is not a typical functional group used for IEC?