Large volume gas chromatography injection port

A sample analysis method, comprising:

• vaporizing a sample containing a solvent and analytes from a thermal desorption tube or a cryo-trap;
• condensing solvent vapors upstream of a temporally-resolving separator to produce a solvent-depleted vapor component;
• and
• passing the solvent-depleted vapor component through the temporally-resolving separator, thereby resolving in time analytes present in the solvent-depleted vapor component.

A sample analysis system, comprising:

• an injection port;
• a temporally-resolving separator;
• a conduit connecting the injection port and the temporally-resolving separator;
• and
• a Fourier transform infrared spectrometer for analyzing time-resolved analytes from the temporally-resolving separator,
• wherein,
• the injection port is at a temperature sufficiently high to vaporize a solvent and analytes present in a sample;
• and
• the conduit is configured to condense the solvent and maintain the analytes in the vapor phase.

A sample analysis system, comprising:

• a thermal desorption tube or a cryo-trap;
• a conduit for passing vapors from the thermal desorption tube or the cryotrap to a temporally-resolving separator,
• wherein,
• the conduit is configured to condense the solvent and maintain the analytes in the vapor phase.