Patent ID: 10514365

Abstract:
A cooling-assisted inside needle capillary adsorption trap device for sampling and delivering volatile and semi-volatile analytes to an analytical device is disclosed. The device includes an inside needle capillary adsorption trap having a first end and a second end and a side aperture located between the first and second ends. The side aperture enables entering the carrier gas into the INCAT and flowing upon the surface of the sorbent (when injected into the GC injector) for complete releasing and eluting of the analytes from the interior surface of the needle. A sorbent is multiwall carbon nanotube/polyaniline and is coated onto the interior surface of the needle between the second end and the side aperture to entrap an analyte within a sample. The cooling-assisted inside needle capillary adsorption trap device also includes a cooling device configured to cool the sorbent.