The invention discloses a continuous gas in-tube
solid phase microextraction device combined with
gas chromatography (GC) for use. The continuous gas in-tube
solid phase microextraction device comprises a continuous gas in-tube
solid phase microextraction device and a sampling device, wherein the continuous gas in-tube
solid phase microextraction device is composed of an in-tube
solid phase microextraction needle, a
semiconductor condenser, a
microheater and an
inert gas connecting
pipe, and the sampling device is composed of the in-tube
solid phase microextraction needle, and a stop valve, a carrier gas flow controller and a gas source which are connected in sequence through a connector connected with a port of an extraction needle on one end of the in-tube solid phase microextraction needle and are used with the
gas chromatography. According to the invention, the extraction needle performs
thermal desorption at a GC sample inlet without changing the GC sample inlet and thus the continuous gas in-tube solid phase microextraction device is applied to the GC with any brand. The invention has the advantages of simple operating method, high extraction rate, accurate quantification, hydrophilic environment, convenient automatic operation and the like and also provides a sample
pretreatment method integrated with extraction, separation and concentration. The continuous gas in-tube solid phase microextraction device can greatly promote the combination use of the SPME (solid phase microextraction) technology and the GC / MS (
mass spectra) technology and applications of micro constituents in complex samples in aspects of on-
site analysis, on-line analysis and in-situ analysis.