Methods in high resolution gas chromatography. Two‐dimensional techniques

Publisher Website
Google Scholar
Abstract
Basic methodology to effect the separation of complex samples by gas chromatography is discussed from an experimental point of view. Several possibilities are presented which are commonly used to enhance the information content of a gas chromatographic run. These include incorporation of more than one set of retention data, multiple detectors, and special column switching techniques. These and other techniques have sometimes been labeled “multidimensional” in the literature. An attempt is made to define the term “two‐dimensional chromatography”.The review is divided into sections which point out the different directions which have been taken to deconvolute chromatographically unresolved components. Particular emphasis is placed on technology which is capable of dealing with samples of extreme complexity, and instrumentation for trace‐ and ultratrace analysis is dicussed with specific examples. The future of two‐dimensional techniques in gas chromatography is looked into.