Components that are ______ _________ in the mobile phase will travel further up the plate, or faster through the column. It’s these differences in solubility and retention by the stationary phase that separate out the different substances.

The mobile phase moves ________ or over the stationary phase.

Look at this diagram of a chromatogram produced using one-way chromatography on a mixture of substances A and B. Calculate the Rf value of spot A.

Explain what is meant by the terms ‘mobile phase’ and ‘stationary phase’.

A ______________ where the molecules can move. This is always a liquid or a gas.

In _________ _______________ the Mobile Phase is a Gas

In _________ chromatography a solvent such as ethanol (the mobile phase), moves over a piece of paper (the stationary phase).

Which type of the chromatography?

The distance each substance moves up the plate depends on its _________in the mobile phase and its retention by or adsorption to the stationary phase__

GC can be used to detect the presence and quantity of alcohol in the blood or urine samples of suspected drink-drivers. What do the letters GC stand for?

HPLC is Done Under _________ _____________

A ___________where the molecules can't move. This must be a solid, or a liquid on a solid support.