ABSTRACT

A. J. P. Martin returned to his concept of gas chromatography in 1951 and, with his co-worker, A. T. James, published their epic paper describing the first gas chromatograph (GC). In order to introduce newcomers to the equipment and the simple procedures necessary to carry out a gas chromatographic analysis, this book introduces the basic gas chromatograph and its function. It discusses each part of the apparatus, together with the more sophisticated modifications that have been introduced to both the instrumentation and the methodology. The book describes the controllers that are simple pneumatic devices. A solute band is shown being eluted through a GC column and the concentration profiles of the solute in both the mobile and stationary phases are depicted as Gaussian in form. It should be emphasized that at all times the solute is exchanging between the two phases throughout the whole of the peak in an attempt to attain or maintain thermodynamic equilibrium.