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    • 44. 发明申请
    • System and method for controlling fluid flow
    • 控制流体流动的系统和方法
    • US20070074766A1
    • 2007-04-05
    • US11240421
    • 2005-09-30
    • Matthew KleeMichael ThompsonJames McCurryPaul Dryden
    • Matthew KleeMichael ThompsonJames McCurryPaul Dryden
    • G05D7/06
    • G05D7/0676G01N30/32G01N30/463Y10T137/7761
    • A system for controlling fluid flow comprises a first fluid conduit having a length, an inner diameter, an input pressure and an output pressure, and a second fluid conduit having a length, an inner diameter, an input pressure and an output pressure where the output pressure of the first fluid conduit is the input pressure of the second fluid conduit. The system also comprises a pressure sensor configured to determine the output pressure of the first fluid conduit, and a controller configured to control the output pressure of the first fluid conduit, thereby establishing a desired fluid flow through the second fluid conduit based on the length of the second fluid conduit, the inner diameter of the second fluid conduit, the temperature of the second fluid conduit and the type of fluid flowing in the second fluid conduit.
    • 用于控制流体流动的系统包括具有长度,内径,输入压力和输出压力的第一流体导管和具有长度,内径,输入压力和输出压力的第二流体导管,其中输出 第一流体导管的压力是第二流体导管的输入压力。 该系统还包括被配置为确定第一流体导管的输出压力的压力传感器,以及被配置为控制第一流体导管的输出压力的控制器,从而基于第一流体导管的长度来建立通过第二流体导管的期望流体流 第二流体导管,第二流体导管的内径,第二流体导管的温度和在第二流体导管中流动的流体的类型。
    • 49. 发明授权
    • Method and device for comprehensive two-dimensional gas chromatography
    • 全面二维气相色谱法的方法和装置
    • US07107818B2
    • 2006-09-19
    • US10466812
    • 2003-02-04
    • Giacinto ZilioliJan Beens
    • Giacinto ZilioliJan Beens
    • G01N30/02B01D53/02
    • G01N30/463G01N30/30G01N2030/025G01N2030/122G01N2030/623
    • A method for detecting substances or mixtures of substances within a sample in an apparatus for comprehensive two-dimensional gas-chromatographic analysis according to the present invention, comprising the steps of: subjecting the sample to a first separation within a first capillary column; modulating in time the effluents from the first column by means of the subdivision into adjacent fractions of the effluents from the first column and subsequently sending each fraction into a second capillary column, the modulation of the effluents being periodic with a first modulation frequency f1 of the sample; separating each of the fractions in the aforesaid second capillary column; and detecting, at the end of the second capillary column, the effluents by means of periodic sampling by discrete time points at a second frequency f2. The method moreover envisages the step of generating the first frequency f1 of modulation and the second frequency f2 of sampling in such a way that sampling by discrete points downstream of the second column will be in phase with the modulation of the effluents from the first column.
    • 一种用于检测根据本发明的用于全面的二维气相色谱分析的装置中的物质或物质混合物的方法,包括以下步骤:使样品在第一毛细管柱内进行第一次分离; 通过将第一列的排出物排入邻近的来自第一列的流出物的馏分,并随后将每个馏分送入第二毛细管柱,调节流出物的第一调制频率f 1 样品; 分离上述第二毛细管柱中的每个级分; 以及在所述第二毛细管柱的末端,通过在第二频率f 2 2处的离散时间点进行周期性采样来检测所述流出物。 该方法还设想以下述方式产生调制的第一频率f 1 1和采样的第二频率f 2 2的步骤,即以第二 柱将与来自第一列的流出物的调制同步。