Design of a microprocessor‐controlled automated injection system for the analysis of gas phase cigarette smoke using glass capillary columns

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Abstract
An automatic injection system for the analysis of gas phase smoke has been designed and evaluated using the microprocessor‐controlled Hewlett‐Packard 5830 gas chromatograph. The cryogenic preconcentration trap was constructed from relatively inexpensive and readily available materials. It was determined that the use of the preconcentration trap, as opposed to condensing the smoke on the head of the cold (‐50°C) chromatographic column, significantly enhanced the resolution of the more volatile gas phase components. Data are presented which illustrate the injection system characteristics. In addition, chromatograms of gas phase smoke are presented which demonstrate the effectiveness of this technique.