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    • 117. 发明申请
    • NARROW BORE LAYER OPEN TUBE CAPILLARY COLUMN AND USES THEREOF
    • NARROW BORE LAYER OPEN TUBE CAPILLARY COLUMN及其用途
    • US20090203146A1
    • 2009-08-13
    • US12306232
    • 2007-06-20
    • Barry L. KargerJian Zhang
    • Barry L. KargerJian Zhang
    • G01N27/26B05D5/00G01N35/00G01N27/06
    • G01N30/60B01J20/28085B01J20/285B01J20/289B01J20/327B01J20/3282B01J2220/54B01J2220/84B01J2220/86G01N30/6073G01N30/7266G01N2030/528Y10T436/11Y10T436/117497
    • A polymer-based PLOT column prepared by in situ copolymerization of a functional monomer, which usually contains the retentive chemistries, and a crosslinking monomer, which enhances the strength of the polymer matrix, is disclosed. Styrenic based monomers such as styrene and divinylbenzene or meth/acrylic based monomers such as butyl or stearyl methacrylate and ethylene glycol dimethacrylate, are preferred. Columns of the invention can be prepared in a robust fashion with a very narrow i.d., e.g., 5-15 μm. Thus, they are suitable for commercial use in ultratrace LC/MS proteomic analysis. Columns according to the invention are characterized by high resolving power, high column-to-column reproducibility and relatively high loading capacity. When these columns are coupled on-line with, e.g., ESI-MS detection, the resulting systems provide high sensitivity for analysis of complex proteomic samples, even down to the low attomole to sub-attomole level.
    • 公开了通过包含保持性化学物质的官能单体的原位共聚制备的聚合物基PLOT柱和提高聚合物基质的强度的交联单体。 苯乙烯类单体如苯乙烯和二乙烯基苯或甲基丙烯酸类单体如甲基丙烯酸丁酯或硬脂基酯和乙二醇二甲基丙烯酸酯是优选的。 可以以非常窄的i.d.例如5-15mum的稳健方式制备本发明的色谱柱。 因此,它们适用于超临界LC / MS蛋白质组学分析中的商业用途。 根据本发明的色谱柱的特征在于高分辨能力,高柱色谱重现性和相对较高的负载能力。 当这些色谱柱与ESI-MS检测在线偶联时,所得到的系统为复杂蛋白质组样品的分析提供了高灵敏度,甚至低至低阿托莫尔至亚阿托莫尔水平。