Apparatus and method for rapid chemical analysis using differential desorption
First Claim
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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.
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Abstract
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.
283 Citations
20 Claims
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1. A kit comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A kit for analyzing a sorbent coated fiber comprising:
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a sorbent coated fiber of a length and a diameter to permit multiple exposure of the sorbent coated fiber to a plurality of different temperature gasses from a desorption ionization source; a reagent fiber containing reactive chemicals; and a holder for positioning the sorbent coated fiber at a distance from the reagent fiber, where the holder is adapted to position one or both the sorbent coated fiber and the reagent fiber to direct a plurality of different temperatures of a carrier gas from a desorption ionization source at a target area on one or both the sorbent coated fiber and the reagent fiber to analyze molecules present on the one or both the sorbent coated fiber and the reagent fiber. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification