Abstract
Porous-layer open-tubular (PLOT) columns, first suggested by Golay in the late 1950s, have been developed and commercialized successfully. PLOT columns have since become powerful and routine tools in gas chromatographic analyses of fixed gases, light hydrocarbons and volatile solvents. They often replace traditional packed columns. However, there are still many unknowns in the development and the applications of PLOT columns. The future of PLOT columns seems less clear. This paper reviews the history of PLOT column development and its applications including practical aspects of PLOT columns. Some speculation of future development is also provided.
Published Version
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