I have posted the theory notes for Chapter 6 (Gas Chromatography) which we will be starting in theory next Wednesday. I recommend that you look back at the introductory chapters from last year.
I have also posted (on the Theory Notes page) the Powerpoints that I use in class for chapters 1-5. These provide a summary of what I think is most important, and also answers to the start-of-chapter revision questions (which aren’t in the Answers files).
I will post the Answers to Chapter 5 exercises and questions in the next few days.