I'm supposed to put four compounds in the order of time they will spend on a polar and a non-polar stationary phase in a gas chromatograph. The compounds are a carbon ring with an oxygen, a benzene ring, a cyclohexane, and a compound with a tertiary amine and a ketone. The boiling points are also given, respectively 66, 138, 121, and 166. I can't figure out if I should use just the polarity or somehow also use the BPs. As I understand it, on a polar column, the non-polar compounds would move faster - so cyclohexane is fastest, then benzene, then the ring with an oxygen, and then the amine / ketone compound would be slowest. The reserve would be true on a non-polar stationary phase. Are the benzene and cyclohexane close enough in polarity that the boiling points should be used instead?
Thanks
