Fluid Switching Valve and Liquid Chromatograph Apparatus Using the Same
    1.
    发明申请
    Fluid Switching Valve and Liquid Chromatograph Apparatus Using the Same 审中-公开
    流体切换阀和使用其的液相色谱仪

    公开(公告)号:US20160377184A1

    公开(公告)日:2016-12-29

    申请号:US15038895

    申请日:2015-01-22

    IPC分类号: F16K3/06 G01N30/26

    摘要: Provided are: a flow path switching valve that reduces the pressure load in a contact surface outer peripheral section of the flow path switching valve and inhibits friction between constituent components; and a liquid chromatographic device using the flow path switching valve. The flow path switching valve is provided with a stator having a plurality of through holes and a seal having conduction grooves for causing the through holes to conduct. The seal has a first portion present vertically beneath a region comprising at least a surface of contact with the stator, and a second portion having lower rigidity than the first portion, on the outside of the first portion. Due to this configuration, it is possible to reduce the pressure load when a flow path of a liquid is switched under high-pressure conditions, and inhibit the phenomenon of friction itself.

    摘要翻译: 提供:流路切换阀,其减小流路切换阀的接触面外周部的压力负荷,并且抑制构成部件之间的摩擦; 以及使用流路切换阀的液相色谱装置。 流路切换阀设置有具有多个通孔的定子和具有用于使通孔导通的导电槽的密封件。 密封件具有在第一部分的外侧上垂直地包括至少与定子接触的表面的区域和具有比第一部分低的刚性的第二部分的第一部分。 由于这种构造,当在高压条件下切换液体的流路时,可以降低压力负荷,并且可以抑制摩擦现象本身。

    DETECTOR FOR LIQUID CHROMATOGRAPHY
    5.
    发明申请
    DETECTOR FOR LIQUID CHROMATOGRAPHY 有权
    液相色谱检测仪

    公开(公告)号:US20150090014A1

    公开(公告)日:2015-04-02

    申请号:US14477989

    申请日:2014-09-05

    IPC分类号: G01N30/74 G01N30/86

    摘要: A detector for liquid chromatography has light sources that generate light in an ultraviolet region and in a near-infrared region; a flow cell, through which sample liquid flows; an optical system to let light generated from the light sources become incident on the flow cell concurrently; a detection element that detects light in the ultraviolet region that passes through the flow cell; a detection element that detects light in the near-infrared region that passes through the flow cell; and an arithmetic operation part that performs arithmetic operation of a first signal value obtained from the detection element and of a second signal value obtained from the detection element. The arithmetic operation part combines the first signal value and the second signal value to calculate a signal value with a reduced baseline fluctuation resulting from a mobile phase during a gradient analysis.

    摘要翻译: 用于液相色谱的检测器具有在紫外区域和近红外区域产生光的光源; 流动池,样品液体通过该流动池流动; 使从光源产生的光同时入射到流动池的光学系统; 检测通过所述流通池的紫外线区域的光的检测元件; 检测通过所述流通池的近红外区域的光的检测元件; 以及算术运算部,其对从所述检测元件获得的第一信号值和从所述检测元件获得的第二信号值进行算术运算。 算术运算部分组合第一信号值和第二信号值,以在梯度分析期间计算由流动相产生的基线波动减小的信号值。