Apparatus and method for rapid chemical analysis using differential desorption

摘要

The present invention is directed to a method and device to generate a chemical signature for a mixture of analytes. The present invention involves using a SPME surface to one or both absorb and adsorb the mixture of analytes. In an embodiment of the invention, the surface is then exposed to different temperature ionizing species chosen with appropriate spatial resolution to desorb a chemical signature for the mixture of analytes.

主权项

1. A kit comprising:
two or more sorbent coated fibers with a length and a diameter to permit multiple exposure of the sorbent coated fiber to one or more temperature gasses from a desorption ionization source; a holder to stabilize a position of the two or more sorbent coated fibers such that the two or more sorbent coated fibers are separated at least by a distance, where the holder enables contact between the two or more sorbent coated fibers and one or more samples; and an adjuster to set the position of the holder such that the one or more temperature carrier gasses from the desorption ionization source are directed at one or more target areas on the two or more sorbent coated fibers.