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    • 8. 发明申请
    • Apparatus and method of utilizing a sawed tooth shaped gradient for chromatographic separation
    • 利用锯齿形梯度进行色谱分离的装置和方法
    • US20060118488A1
    • 2006-06-08
    • US11153862
    • 2005-06-15
    • Aaron TimpermanDaniel Morris
    • Aaron TimpermanDaniel Morris
    • B01D15/08
    • G01N30/34B01D15/166B01J20/286B01J20/287B01J20/288G01N30/02B01D15/34
    • The present invention provides an apparatus and a method wherein the movement of analytes on a chromatographic separation column is controlled by the manipulation of isocratic and gradient flow. Such manipulation allows for a distinct set of analytes to be eluted from the chromatography column and delivered downstream for further separation and/or processing while the remainder of the sample remains in a “holding pattern” on the chromatography column. As such, the present invention allows for a small portion of the sample to be processed downstream of the column while substantially eliminating undesirable isocratic elution from the column during such downstream processing. Once the downstream processing has been completed, the column of the present invention elutes a second distinct analyte and the remainder of the sample is maintained in a holding pattern. The process may be repeated until the entire sample has been eluted from the chromatography column.
    • 本发明提供了一种装置和方法,其中分析物在色谱分离柱上的移动通过等度梯度流的操纵来控制。 这样的操作允许从色谱柱洗脱出一组不同的分析物,并在下游进行进一步分离和/或处理,同时样品的其余部分保留在色谱柱上的“保持模式”中。 因此,本发明允许样品的一小部分在柱下游进行处理,同时基本上消除了在这种下游处理期间从柱中不期望的等度洗脱。 一旦下游处理已经完成,本发明的色谱柱洗脱第二种不同的分析物,并且样品的其余部分保持在保持图案中。 可以重复该过程,直到整个样品已经从色谱柱洗脱出来。
    • 9. 发明申请
    • Apparatus and method for using bi-directional capillary electrophoresis
    • 使用双向毛细管电泳的装置和方法
    • US20040163961A1
    • 2004-08-26
    • US10784352
    • 2004-02-23
    • West Virginia University Research Corporation
    • Aaron T. Timperman
    • G01N027/453
    • G01N27/44756
    • The present invention provides an apparatus and method of utilizing bi-directional capillary electrophoresis (nullCEnull) device. In one embodiment, cations are drawn into a first uncharged channel towards a negative electrode and anions are drawn into a second uncharged channel towards a positive electrode. The uncharged channels allows for minimal interaction between the sample and the walls of the channel which allows for minimal sample loss. The present invention also provides a method of separating anions from cations. The method comprises delivering the mixture to a bi-directional CE device. Following delivery, cations are drawn into a first uncharged channel towards a negative electrode and anions are drawn into a second uncharged channel towards a positive electrode. In one aspect of the present invention, the bi-directional CE device engages a microfluidic proteome analysis system.
    • 本发明提供了利用双向毛细管电泳(“CE”)装置的装置和方法。 在一个实施方案中,将阳离子吸引到朝向负极的第一不带电通道中,并将阴离子吸引到朝向正电极的第二不带电通道中。 不带电的通道允许样品和通道壁之间的最小交互,从而允许最小的样品损失。 本发明还提供了一种从阳离子中分离阴离子的方法。 该方法包括将混合物输送到双向CE器件。 在递送之后,阳离子被吸入朝向负极的第一不带电通道,阴离子被吸入朝向正电极的第二不带电通道。 在本发明的一个方面,双向CE器件接合微流体蛋白质组分析系统。