Liquid chromatography and column packing material
    3.
    发明授权
    Liquid chromatography and column packing material 有权
    液相色谱和色谱柱包装材料

    公开(公告)号:US06360589B1

    公开(公告)日:2002-03-26

    申请号:US09180880

    申请日:1998-11-25

    IPC分类号: G01N3000

    摘要: A liquid chromatograph and a column packing material effectively condensing cationic specimen and exhibiting a high resolution. The liquid chromatograph includes a pre-focusing column (30, 40) having a volume of less than 2.0 milliliters and packed with a column packing material, in which a porous support is coated by a silicone polymer having a Si—R—X (R is a spacer part, X is a sulfonic group) bond and a Si—R′ (R′ is a hydrophilic group) bond, wherein the specimen to be analyzed is supplied to the pre-focusing column in the state dispersed in a solvent for condensation. The condensed specimen is then separated in a separation column (16, 43) used for separating the specimen dispersed in the solvent, and the separated specimen is analyzed by a detector (17, 41).

    摘要翻译: 液相色谱仪和色谱柱填充材料有效冷凝阳离子样品并显示高分辨率。 液相色谱仪包括体积小于2.0毫升的预聚焦柱(30,40)并填充有柱填料,其中多孔载体由具有Si-RX的硅氧烷聚合物(R为 间隔部分,X是磺酸基)键和Si-R'(R'是亲水基团)键,其中待分析的试样以分散在用于冷凝的溶剂中的状态提供给预聚焦塔。 然后将冷凝的样品在用于分离分散在溶剂中的试样的分离塔(16,43)中分离,并通过检测器(17,41)分析分离的样品。

    Polymer packing material for liquid chromatography and a producing method thereof
    9.
    发明授权
    Polymer packing material for liquid chromatography and a producing method thereof 失效
    用于液相色谱的聚合物包装材料及其制备方法

    公开(公告)号:US06482867B1

    公开(公告)日:2002-11-19

    申请号:US09378636

    申请日:1999-08-20

    IPC分类号: C08F3204

    摘要: There are disclosed a polymer packing material suitable for liquid chromatography and a producing method thereof. The polymer packing material having a polymer particle based on a styrene skeleton with monodispersed particle distribution can be obtained by hydrophilic treatment of an inner surface of a micropore existing in a fine pore of the polymer packing material, or subsequent introduction of a hydrophobic group into the inner hydrophilic surface by chemical modification. A method of producing the polymer packing material suitable for liquid chromatography includes the step of polymerizing glycerol dimethacrylate as a crosslinking agent and 2-ethylhexl methacrylate as a monomer according to a two-step swelling polymerization process. Alternatively, the producing method includes the step of crosslinking and polymerizing only glycerol dimethacrylate to form a polymer, and introducing the hydrophobic group into the polymer by chemical modification.

    摘要翻译: 公开了适用于液相色谱的聚合物包装材料及其制造方法。 具有基于具有单分散粒子分布的苯乙烯骨架的聚合物颗粒的聚合物填充材料可以通过亲水处理存在于聚合物填充材料的细孔中的微孔的内表面,或随后将疏水基团引入到 内部亲水表面经化学修饰。 制备适于液相色谱的聚合物包装材料的方法包括根据两步溶胀聚合方法将作为交联剂的甘油二甲基丙烯酸酯和作为单体的2-乙基己基甲基丙烯酸酯聚合的步骤。 或者,制造方法包括仅使甘油二甲基丙烯酸酯交联和聚合以形成聚合物的步骤,并通过化学改性将疏水基团引入聚合物。