Semipermeable membrane-based sampling systems

Details Semipermeable membrane-based sampling systems Semipermeable membrane-based sampling systems

G - Physics

01

N

G01N 1/10 (2006.01) B01D 61/00 (2006.01) B01D 71/00 (2006.01) E21B 49/08 (2006.01) G01N 1/14 (2006.01) G01N 1/34 (2006.01) G01N 1/40 (2006.01) G01N 33/18 (2006.01)

Patent

CA 2504140

The device and methods relate to a sampling device (2) for obtaining samples of analytes in a difficult-to-reach sampling location, such as below ground or underwater, and transporting the sample to an accessible delivery or collection site. The sampling device (2) comprises a semipermeable membrane- based sampling chamber (28), which can be positioned under the ground or water surface where analytes of interest can permeate into the chamber into the semipermeable membrane-based sampling chamber (28). Transfer channels (21, 22), which communicate with the semipermeable membrane-based sampling chamber (28), is used to transport the sample to the surface for analysis without removing the semipermeable membrane-based sampling chamber (28) from the sampling location.

L'invention concerne un dispositif et des procédés relatifs à un dispositif d'échantillonnage permettant d'obtenir des échantillons d'analytes se trouvant dans un emplacement d'échantillonnage difficile d'accès, tel qu'un emplacement souterrain ou sous-marin, et permettant de transporter l'échantillon dans un site de distribution ou de recueil accessible. Le dispositif d'échantillonnage comprend une chambre d'échantillonnage à membrane semi-perméable, laquelle peut être positionnée au-dessous de la surface du sol ou de l'eau où des analytes étudiés peuvent traverser la membrane semi-perméable et entrer dans la chambre. Des canaux de transfert, communiquant avec la chambre d'échantillonnage, sont utilisés pour transporter l'échantillon à la surface, aux fins d'analyse de ceux-ci sans retrait de la chambre de l'emplacement d'échantillonnage.

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