Solid phase extraction plate

Details Solid phase extraction plate Solid phase extraction plate

B - Operations, Transporting

01

L

150/8

B01L 3/00 (2006.01)

Patent

CA 2297132

A solid phase extraction plate (10) includes a unitary tray (12) having a plurality of spaced-apart discrete upstanding chambers (14) molded therein with each chamber (14) having a top opening (16) and a bottom nozzle (18) with downwardly tapering sidewalls (24) extending between the top opening (16) and the bottom nozzle (18). A plurality of solid phase extraction disks (28) are provided and one secured in each of the plurality of chambers (14) without the use of frits or retainer rings utilizing instead tapered sidewalls (24) of the chamber (14) for enabling a press fit of the disks (28) therein.

Selon cette invention, une plaque d'extraction (10) en phase solide comporte un plateau unitaire doté d'une série de chambres (14) séparées, saillantes et moulées dans ce plateau, chaque chambre (14) étant dotée d'un orifice supérieur (16), d'une buse inférieure (18) et de parois latérales (24) s'effilant vers le bas et s'étendant entre ledit orifice supérieur (16) et ladite buse inférieure (18). Cette plaque comporte une série de disques d'extraction (28) en phase solide. Chacun de ces disques est fixé à l'une des chambres (14), sans frittes de scellement ou anneaux de retenue, mais grâce aux parois latérales (24) effilées de la chambre (14) qui permettent de former un ajustage serré des disques (28) au sein de cette chambre.

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