Solid phase extraction pipette

G - Physics – 01 – N

Patent

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Details

G01N 1/40 (2006.01) G01N 30/06 (2006.01)

Patent

CA 2523982

Solid phase extraction devices for sample preparation are disclosed, comprising a hollow conical tube having one narrower opening and one broader opening, wherein the narrower opening of the tube contains a solid phase extraction material comprising a functionalized monolithic sorbent, and wherein the solid phase extraction device is prepared by a combination of reduced pressure, positive pressure and mechanical compaction. The solid phase extraction devices are adapted for preparation of small sample volumes, and provide excellent recovery of analytes and good flow characteristics. Methods for preparing and using the solid phase extraction devices are disclosed.

L'invention concerne des dispositifs d'extraction en phase solide pour la préparation d'échantillon, comprenant un tube conique creux à ouverture plus étroite et à ouverture plus large, la plus étroite contenant un matériau d'extraction en phase solide à sorbant monolithique fonctionnalisé. On établit un dispositif d'extraction en phase solide par une combinaison de pression réduite, de pression positive et de compactage mécanique. Les dispositifs d'extraction en phase solide permettent de préparer de petits volumes d'échantillon et offrent une excellente récupération d'analyte ainsi que de bonnes caractéristiques de flux. L'invention concerne également des procédés relatifs à la préparation et à l'utilisation des dispositifs décrits.

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