The Separation of Volatiles From Solids in the Injection Port of a Gas Chromatograph

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Abstract
Two variations of a simple method for obtaining volatiles from solid samples for gas chromatographic analysis are presented. A glass tube partially filled with the sample is inserted into the injection port, where it is swept with carrier gas. For thermally stable samples, the injection port and column are simultaneously temperature-programmed. For thermally unstable samples, a relatively low-temperature presweep is used to elute the volatiles onto the column, which is held at room temperature; the sample is then removed, and the column temperature programmed in the normal manner. The latter procedure may be applied to a wide variety of complex materials since it minimizes thermal degradation of the sample.

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