Silica materials
    12.
    发明授权
    Silica materials 失效
    二氧化硅材料

    公开(公告)号:US5869152A

    公开(公告)日:1999-02-09

    申请号:US609425

    申请日:1996-03-01

    Applicant: Luis A. Colon

    Inventor: Luis A. Colon

    Abstract: The present invention relates to silica materials and particles having surfaces which define an interior. The interior includes interior silicon atoms at least a portion of which is bonded to a substituted or unsubstituted alkyl moiety. In a preferred aspect of the present invention, the silica material also has surface silicon atoms to which are bonded substituted or unsubstituted alkyl moieties. A capillary tube coated on its inner surface with the silica material of the present invention is also disclosed. The silica materials of the present invention are resistant to degradation at high or low pH and are particularly useful as chromatographic stationary phases, especially for use in open tubular liquid chromatography and open tubular electrochromatography.

    Abstract translation: 本发明涉及二氧化硅材料和具有限定内部的表面的颗粒。 内部包括内部硅原子,其至少一部分键合到取代或未取代的烷基部分。 在本发明的优选方面,二氧化硅材料还具有与取代或未取代的烷基部分键合的表面硅原子。 还公开了在其内表面上涂覆有本发明的二氧化硅材料的毛细管。 本发明的二氧化硅材料在高或低pH下耐降解,特别适用于色谱固定相,特别适用于开放式管式液相色谱和开放式管式电色谱。

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