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    • 1. 发明申请
    • HIGH CAPACITY ION CHROMATOGRAPHY STATIONARY PHASE AND METHOD OF FORMING
    • 高容量离子色谱固定相及其制备方法
    • WO2011106720A3
    • 2011-09-01
    • PCT/US2011/026343
    • 2011-02-25
    • DIONEX CORPORATIONSRINIVASAN, KannanPOHL, Christopher, A.BHARDWAJ, SheetalLIN, Rong
    • SRINIVASAN, KannanPOHL, Christopher, A.BHARDWAJ, SheetalLIN, Rong
    • B01J41/20B01J41/04B01J39/26B01J47/00B01D15/36
    • The present invention provides a new design for high capacity stationary phases for chromatography, for example, ion chromatography. The stationary phases include a first polymer layer in contact with and at least partially coating the substrate of the stationary phase. The first polymer layer serves as a foundation for the attachment, and in various embodiments, the growth and attachment, of a highly hyperbranched polymer structure, typically based on one or more products of condensation polymerization. Multiple components are of use in forming the first polymer layer and the hyperbranched polymer structure, thereby providing a stationary phase that can be engineered to have a desired property such as ion capacity, ion selectivity, and the like. Exemplary condensation polymers are formed by the reaction of at least one polyfunctional compound with at least one compound of complimentary reactivity, e.g., a nucleophilic polyfunctional compound reacting with an electrophilic compound.
    • 本发明提供了用于色谱法的高容量固定相的新设计,例如离子色谱法。 固定相包括与固定相的基底接触并且至少部分涂覆固定相的基底的第一聚合物层。 第一聚合物层用作附着的基础,并且在各种实施方案中,高度超支化聚合物结构的生长和附着通常基于一种或多种缩聚产物。 多种组分可用于形成第一聚合物层和超支化聚合物结构,从而提供可被设计成具有期望性质如离子容量,离子选择性等的固定相。 示例性的缩合聚合物通过至少一种多官能化合物与至少一种互补反应性化合物(例如与亲电子化合物反应的亲核多官能化合物)反应而形成。
    • 4. 发明申请
    • ION CHROMATOGRAPHY SYSTEMS WITH FLOW-DELAY ELUENT RECYCLE
    • 离子色谱系统与流延迟回收
    • WO2009105387A1
    • 2009-08-27
    • PCT/US2009/034015
    • 2009-02-13
    • DIONEX CORPORATIONLIU, YanSRINIVASAN, KannanPOHL, Christopher, A.BHARDWAJ, SheetalLU, Zhongqing
    • LIU, YanSRINIVASAN, KannanPOHL, Christopher, A.BHARDWAJ, SheetalLU, Zhongqing
    • G01N30/96
    • B01D15/10G01N30/26G01N30/96G01N2030/965
    • A chromatographic method including chromatographically separating sample ionic species in an eluent stream, detecting the separated sample ionic species, catalytically combining hydrogen and oxygen gases or catalytically decomposing hydrogen peroxide in a catalytic gas elimination chamber (31), and recycling the effluent stream from the catalytic gas elimination chamber to the chromatography separation column (10). The residence time between the detector (14) and said chamber (31) is at least one minute to facilitate decomposition of unstable oxidative compounds. Also, flowing the recycle sequentially through two detector effluent flow channels of an electrolytic membrane suppressor (28). Also, applying heat or UV energy between the detector (14) and the chamber (31). Also, detecting bubbles after the chamber. Also, a Platinum group metal catalyst and ion exchange medium in the chamber. Apparatus for performing the methods.
    • 一种色谱方法,包括在洗脱液流中色谱分离样品离子物质,检测分离的样品离子物质,催化结合氢气和氧气,或催化分解催化气体消除室(31)中的过氧化氢,以及将来自催化剂的流出物流 气体消除室至色谱分离柱(10)。 检测器(14)和所述室(31)之间的停留时间为至少一分钟,以促进不稳定的氧化化合物的分解。 此外,使循环物依次流过电解膜抑制器(28)的两个检测器流出物流动通道。 而且,在检测器(14)和腔室(31)之间施加热或UV能量。 另外,在室后检测气泡。 此外,铂族金属催化剂和离子交换介质在室内。 用于执行方法的装置。