G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 30/58 (2006.01) B01D 15/08 (2006.01) G01N 30/56 (2006.01) G01N 30/60 (2006.01) G01N 30/02 (2006.01)
Patent
CA 2341238
A new and useful structure for forming a capillary tube (10), e.g. for gas chromatography, and a technique for forming the capillary tube (10) is described. The capillary tube (10) comprises a tube structure (12), and a deactivated surface-bonded sol-gel coating (14) on a surface (16) of the tube structure (12) to form a stationary phase coating (14) on that surface (16) of the tube structure (12). According to the present invention the deactivated stationary phase sol-gel coating (14) enables separation of analytes while minimizing adsorption of analytes on the separation column structure (12).
La présente invention concerne une structure nouvelle utile pour la réalisation d'un tube capillaire (10) employé par exemple en chromatographie des gaz, ainsi que la technique de fabrication correspondante. Le tube capillaire (10) comprend une structure tubulaire (12). Sur une surface (16) de cette structure est collée une couche sol-gel désactivée (14) qui forme un revêtement en phase stationnaire. Selon cette invention, la couche sol-gel désactivée en phase stationnaire (14) permet de séparer les composés à analyser tout en réduisant l'adsorption desdits composés sur structure de colonne de séparation (12).
Malik Abdul
Wang Dongxin
Borden Ladner Gervais Llp
University Of South Florida
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