Sorbent devices and methods of using them
AssigneePerkinElmer Health Sciences, Inc.
InventorsLee Marotta, Miles Snow
Life of this patent
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Abstract
Certain aspects and examples are directed to sorbent devices and methods of using them. In certain embodiments, a sorbent device comprising a body comprising a sampling inlet, a sampling outlet and a cavity between the inlet and the outlet, the cavity comprising a serial arrangement of at least four different sorbent materials is described. In some embodiments, the sorbent materials are arranged from a material with a weakest sorbent strength to a material with a strongest sorbent strength with the weakest sorbent strength material adjacent to the sampling inlet.
Claims19
A sorbent device comprising a body comprising a sampling inlet, a sampling outlet and a cavity between the inlet and the outlet, the cavity comprising a serial arrangement of at least four different sorbent materials in which the sorbent materials are arranged from a material with a weakest sorbent strength to a material with a strongest sorbent strength with the weakest sorbent strength material adjacent to the sampling inlet.
A sorbent device effective to adsorb and desorb volatile organic species in a sample, the sorbent device comprising a hollow tube comprising a body, a sampling inlet and a sampling outlet, the body comprising an interior volume in which at least four different sorbent materials are disposed, the sorbent materials being effective to desorb substantially all of the volatile organic species adsorbed to the sorbent materials in a single desorption cycle, in which the sorbent materials are arranged serially from a material with a weakest sorbent strength to a material with a strongest sorbent strength with the weakest sorbent strength material adjacent to the sampling inlet.
A method comprising:
- exposing a sorbent device to an environment comprising volatile species to permit the volatile species to adsorb to the sorbent device, the sorbent device comprising a plurality of different sorbent materials;
- and
- desorbing the species adsorbed to the sorbent device using a single desorption cycle to desorb substantially all adsorbed species in the sorbent device.
Dependencies are inferred from the claim text.