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    Liquid chromatograph
    1.
    发明授权
    Liquid chromatograph 有权

    公开(公告)号：US11988648B2

    公开(公告)日：2024-05-21

    申请号：US16760632

    申请日：2018-07-25

    申请人： Shimadzu Corporation

    发明人： Daisuke Nakayama

    IPC分类号： G01N30/24 ,  G01N30/34 ,  G01N30/02

    CPC分类号： G01N30/24 ,  G01N30/34 ,  G01N2030/027

    摘要： A liquid chromatograph includes: a feeding unit configured to feed a mobile phase prepared for an analysis; an analysis flow path provided with an analytical column for separating a sample and a detector for detecting sample components separated with the analytical column; a sample injection part configured to inject the sample into the analysis flow path; a measurement flow path provided separately from the analysis flow path and provided with a measuring instrument for measuring a preparation state of the mobile phase; and a status switching unit configured to selectively switch between an analysis state in which all of the mobile phase the from feeding unit flows through the analysis flow path and a measurement state in which at least a part of the mobile phase from the feeding unit flows through the measurement flow path.

    Chromatograph device
    3.
    发明授权
    Chromatograph device 有权

    公开(公告)号：US10746709B2

    公开(公告)日：2020-08-18

    申请号：US16081085

    申请日：2016-07-06

    申请人： Shimadzu Corporation

    发明人： Daisuke Nakayama

    IPC分类号： G01N30/86 ,  H01J49/00 ,  G01N30/72 ,  G01N30/74

    摘要： A chromatograph device capable of correct measurement even if the retention times of target components change. This chromatograph device is provided with: a storage unit for storing measurement parameters for a plurality of target components, measurement conditions including measurement parameter switching times for each of two target components eluted in succession, and formulas for determining the switching times from predetermined retention times for the target components; a measurement data accumulation unit; a preceding-measurement-data determination unit for determining, at the time of sample measurement, whether there is preceding measurement data for the same column type, mobile phase type, and flow velocity; and a measurement execution unit for carrying out measurement on the basis of the measurement conditions if there is no preceding measurement data.

    Waveform processing assistance method and system
    4.
    发明授权
    Waveform processing assistance method and system 有权

    公开(公告)号：US09797929B2

    公开(公告)日：2017-10-24

    申请号：US14485961

    申请日：2014-09-15

    申请人： SHIMADZU CORPORATION

    发明人： Daisuke Nakayama

    IPC分类号： G01R13/02

    CPC分类号： G01R13/0245

    摘要： Provided is a waveform processing assistance system for helping users determine the value of a parameter which is necessary in a waveform processing method for determining the rising and falling points of a peak and whose validity cannot be easily and intuitively determined The system includes: a waveform displayer for showing, on a display screen, a waveform including a peak; a marker displayer for showing, on the display screen, a marker which is capable of being moved by a user; and a slope information displayer for showing information related to the slope of the waveform at a point lying on the waveform and meeting the marker, or at a point which lies on the waveform, which meets the marker, and at which a predetermined operation has been performed by the user. Examples of the slope-related information include a numerical value of the slope, a tangent, and a grid.

    ANALYSIS METHOD FOR DYE FOR ORGANIC SOLAR CELL AND PURIFICATION METHOD THEREFOR
    5.
    发明申请
    ANALYSIS METHOD FOR DYE FOR ORGANIC SOLAR CELL AND PURIFICATION METHOD THEREFOR 有权
    用于有机太阳能电池的染料分析方法及其纯化方法

    公开(公告)号：US20140245818A1

    公开(公告)日：2014-09-04

    申请号：US14349760

    申请日：2012-12-28

    申请人： SHIMADZU CORPORATION

    发明人： Daisuke Nakayama

    IPC分类号： G01N30/80

    CPC分类号： G01N30/80 ,  C09B57/10 ,  G01N30/88 ,  G01N2030/027 ,  G01N2030/8809 ,  H01G9/2059 ,  H01L51/0025 ,  H01L51/0086 ,  Y02E10/549 ,  B01D15/322

    摘要： This analysis method includes: subjecting a sample solution of a dye-containing sample in an organic solvent to normal-phase liquid chromatography to separate the sample solution and detect separated components. The normal-phase liquid chromatography involves (B1) using a separation column filled with a column packing material which is prepared by modifying a base material with a polar modifying group, and (B2) using as an eluent a polar organic solvent containing an acid.

    摘要翻译： 该分析方法包括：将含有染料的样品在有机溶剂中的样品溶液进行正相液相色谱以分离样品溶液并检测分离的组分。 正相液相色谱法包括（B1）使用填充有通过用极性改性基团改性基材制备的柱填充材料的分离柱，和（B2）使用含有酸的极性有机溶剂作为洗脱剂。