Approaches the subject from the perspective of a chromatographer who needs to know enough theory to make the best use of a chosen technique. Emphasizes the actual application of the methods - not just the theories on which they are based. This edition features a number of advances in the field since publication of the first volume. These include new chapters on high resolution gas chromatography (GC), GC detectors and classification of GC. Self-assessment questions ensure full understanding of the concepts.