Revolving fraction collector for preparative capillary gas chromatography in the 100-?g to 1-ng range

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Abstract
A gas chromatography fraction collector for use with capillary columns, consisting of an all-glass system with a revolving collector housing six capillary tubes, 100 × 1 mm (internal diameter), has been constructed and tested. The collector is cooled with solid CO2 and has a recovering efficiency of 50–75% in the 100-μg to 1-ng range for compounds of different polarities and volatilities, exemplified by mono- and sesquiter-penes and long-chain esters. The technique has been used for fractionating blends of semiochemicals prior to microchemical reactions, spectroscopic analyses, and behavioral experiments.