Sorbent devices and methods of using them
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United States of America Patent
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Mar 13, 2018
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app pub date -
Nov 16, 2015
filing date -
Oct 2, 2009
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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.
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