You run a Gas Chromatography (GC) separation of two compounds during the first week of your lab. The following week you have to re-run the sample.

You run a Gas Chromatography (GC) separation of two compounds during the first week of your lab. The following week you have to re-run the sample. Assuming you use similar conditions to the first week you would expect the retention times to:

Select one:

a. The retention time of the more polar compound would increase

b. Stay the same

c. The retention time of the less polar compound would increase

d. The retention time of both compounds would increase

e. It would be impossible to predict