Automated accelerated solvent extraction apparatus and method
    3.
    发明授权
    Automated accelerated solvent extraction apparatus and method 失效
    自动加速溶剂萃取装置及方法

    公开(公告)号:US5785856A

    公开(公告)日:1998-07-28

    申请号:US820771

    申请日:1997-03-18

    摘要: An apparatus for automated extraction of an analyte from a sample positioned in a sample containment cell having a fluid passageway structure for communication of an extraction fluid to and from the cavity of the cell. The apparatus includes a loading tray, an oven assembly mounted proximate the loading tray, a fluid communication assembly mounted proximate the tray, a cell manipulation assembly and a controller. The cell manipulation assembly brings an inlet conduit and an outlet conduit of the fluid communication assembly into sealed relationship with the sample containment cell and uses the conduits to pick up and move the cell to and from the cell tray and oven assembly. The fluid communication assembly further causes flow of an extraction fluid into the cell and pressurizes the cell for extraction of an analyte from the sample under elevated temperatures and pressures, which can be under supercritical conditions for supercritical fluid extraction but preferably are below supercritical conditions for solvent extraction. The apparatus and method include a solvent extraction soak, purging of the extracted fluid, flushing with a gas and rinsing so as to avoid contamination of subsequent analyte extractions.

    摘要翻译: 一种用于从位于样品容纳细胞中的样品自动提取分析物的装置,所述样品容纳细胞具有流体通道结构,用于将提取流体与细胞的腔连通。 该装置包括装载托盘,靠近装载托盘安装的烤箱组件,靠近托盘安装的流体连通组件,单元操作组件和控制器。 电池操作组件将流体连通组件的入口导管和出口导管与样品容纳单元密封,并使用导管将电池从电池托盘和烘箱组件中取出并移动。 流体连通组件进一步引起提取流体流入细胞并对细胞加压,以在升高的温度和压力下从样品中提取分析物,其可以在超临界条件下进行超临界流体萃取,但优选低于溶剂的超临界条件 萃取。 该设备和方法包括溶剂萃取浸泡,抽出的流体的清洗,用气体冲洗和漂洗,以避免后续分析物提取的污染。

    On-line coupled liquid and gas chromatography system
    4.
    发明授权
    On-line coupled liquid and gas chromatography system 失效
    在线耦合液相色谱系统

    公开(公告)号:US4935145A

    公开(公告)日:1990-06-19

    申请号:US348240

    申请日:1989-05-05

    摘要: Apparatus and method for on-line coupled liquid chromatography and gas chromatography analysis includes a retention gap which allows injection of a substantial volume of sample-carrying eluent and concentrates bands, obviating adverse effects on the resolution or peak shape of the components of interest. The retention gap is used to simultaneously receive and vaporize liquid solvent in a manner highly suitable for purposes of gas chromatographically separating solutes of interest dispersed in the liquid chromatography solvent.

    摘要翻译: 用于在线耦合液相色谱和气相色谱分析的装置和方法包括保留间隙,其允许注入大量样品携带洗脱液和浓缩物带,消除对感兴趣组分的分辨率或峰形的不利影响。 保留间隙用于以非常适合气相色谱分离分散在液相色谱溶剂中的目的溶质的方式同时接收和蒸发液体溶剂。

    On-line coupled liquid and gas chromatography system with an interface
capillary tube interposed between a pair of capillary chromatographic
columns
    6.
    发明授权
    On-line coupled liquid and gas chromatography system with an interface capillary tube interposed between a pair of capillary chromatographic columns 失效
    在线耦合液相色谱和气相色谱系统,一个插入毛细管插入一对毛细管色谱柱之间

    公开(公告)号:US5236593A

    公开(公告)日:1993-08-17

    申请号:US982266

    申请日:1992-11-25

    IPC分类号: G01N30/02 G01N30/16 G01N30/46

    摘要: Apparatus and method for on-line coupled liquid chromatography and gas chromatography analysis. The system includes a high-volume, liquid vaporizing chamber, or interface capillary tube which allows injection of a substantial volume of sample-carrying eluent and concentrates bands, obviating adverse effects on the resolution or peak shape of the components of interest. The vaporizing chamber is interposed between a packed or wall-coated open tubular capillary liquid chromatographic column and a capillary gas chromatographic column. The capillary liquid chromatographic column permits the use of small volumes of eluent and reduced flow rates.

    摘要翻译: 在线耦合液相色谱和气相色谱分析的仪器和方法。 该系统包括大容量的液体蒸发室或接口毛细管,其允许注入大量的样品携带洗脱液和浓缩物带,消除对感兴趣的组分的分辨率或峰形的不利影响。 蒸发室介于填充或壁涂开放的管状毛细管液相色谱柱和毛细管气相色谱柱之间。 毛细管液相色谱柱允许使用少量洗脱液和降低流速。

    Automated analyte supercritical fluid extraction apparatus
    7.
    发明授权
    Automated analyte supercritical fluid extraction apparatus 失效
    自动分析超临界流体萃取仪

    公开(公告)号:US5660727A

    公开(公告)日:1997-08-26

    申请号:US398140

    申请日:1995-03-03

    摘要: An apparatus for automated extraction of an analyte from a sample positioned in a sample containment cell having a fluid passageway structure for communication of an extraction fluid to and from the cavity of the cell. The apparatus includes a loading tray, an oven assembly mounted proximate the loading tray, a fluid communication assembly mounted proximate the tray, a cell manipulation assembly and a controller. The cell manipulation assembly brings an inlet conduit and an outlet conduit of the fluid communication assembly into sealed relationship with the sample containment cell and uses the conduits to pick up and move the cell to and from the cell tray and oven assembly. The fluid communication assembly further causes flow of an extraction fluid into the cell and pressurizes the cell for extraction of an analyte from the sample under elevated temperatures and pressures, which can be under supercritical conditions for supercritical fluid extraction but preferably are below supercritical conditions for solvent extraction. The apparatus and method include a solvent extraction soak, purging of the extracted fluid, flushing with a gas and rinsing so as to avoid contamination of subsequent analyte extractions.

    摘要翻译: 一种用于从位于样品容纳细胞中的样品自动提取分析物的装置,所述样品容纳细胞具有流体通道结构,用于将提取流体与细胞的腔连通。 该装置包括装载托盘,靠近装载托盘安装的烤箱组件,靠近托盘安装的流体连通组件,单元操作组件和控制器。 电池操作组件将流体连通组件的入口导管和出口导管与样品容纳单元密封,并使用导管将电池从电池托盘和烘箱组件中取出并移动。 流体连通组件进一步引起提取流体流入细胞并对细胞加压,以在升高的温度和压力下从样品中提取分析物,该温度和压力可以在超临界条件下进行超临界流体萃取,但优选低于溶剂的超临界条件 萃取。 该设备和方法包括溶剂萃取浸泡,抽出的流体的清洗,用气体冲洗和漂洗,以避免后续分析物提取的污染。

    On-line coupled liquid and gas chromatography system with an interface
capillary tube interposed between a pair of capillary chromatographic
columns
    8.
    发明授权
    On-line coupled liquid and gas chromatography system with an interface capillary tube interposed between a pair of capillary chromatographic columns 失效
    在线耦合液相色谱和气相色谱系统,一个插入毛细管插入一对毛细管色谱柱之间

    公开(公告)号:US5522988A

    公开(公告)日:1996-06-04

    申请号:US318481

    申请日:1994-10-05

    摘要: Apparatus and method for on-line coupled liquid chromatography and gas chromatography analysis. The system includes a high-volume, liquid vaporizing chamber, or interface capillary tube which allows injection of a substantial volume of sample-carrying eluent and concentrates bands, obviating adverse effects on the resolution or peak shape of the components of interest. The vaporizing chamber is interposed between a packed or wall-coated open tubular capillary liquid chromatographic column and a capillary gas chromatographic column. The capillary liquid chromatographic column permits the use of small volumes of eluent and reduced flow rates.

    摘要翻译: 在线耦合液相色谱和气相色谱分析的仪器和方法。 该系统包括大容量的液体蒸发室或接口毛细管,其允许注入大量的样品携带洗脱液和浓缩物带,消除对感兴趣的组分的分辨率或峰形的不利影响。 蒸发室介于填充或壁涂开放的管状毛细管液相色谱柱和毛细管气相色谱柱之间。 毛细管液相色谱柱允许使用少量洗脱液和降低流速。