METHOD AND DEVICE FOR VAPORIZATION INJECTION OF HIGH VOLUMES IN GAS CHROMATOGRAPHIC ANALYSIS

    公开(公告)号:EP1459060B1

    公开(公告)日:2018-08-22

    申请号:EP02788384.2

    申请日:2002-12-19

    IPC分类号: G01N30/12 G01N30/16

    摘要: This invention concerns a method and apparatus for vaporization injection of large volumes of liquid sample (substance to be analysed+solvent) introduced by a syringe needle into a heated vaporization chamber which is part of an injector coupled operatively to a device for gas chromatographic analysis. The sample is sent in the form of a liquid band traveling through the vaporization chamber at high speed until it reaches a stopping and vaporization device positioned adjacent to the inlet of a capillary to collect the vapors. In order to inject large volumes without modifying the vaporization chamber and without partial losses of the samples, the sample vapors, in splitless mode, are drawn up from the vaporization chamber into the capillary by virtue of the local action of volume contraction caused by recondensation of at least the solvent vapors in the capillary.

    MODULAR GAS CHROMATOGRAPH
    3.
    发明公开
    MODULAR GAS CHROMATOGRAPH 有权
    模块气体色谱

    公开(公告)号:EP2417447A1

    公开(公告)日:2012-02-15

    申请号:EP09787696.5

    申请日:2009-04-06

    IPC分类号: G01N30/88

    摘要: This invention is related to a gas chromatograph wherein more substitutable modules are foreseen, in particular injector modules and/or detector modules, as well as one embodiment in an oven module. Each module is insertable in a seat of the gas chromatograph mainframe with fast connections of its electronic and pneumatic means to corresponding outlets on said mainframe. Each module has its own heating element.

    摘要翻译: 本发明涉及一种气相色谱仪,其中预见了更多可替代的模块,特别是喷射器模块和/或检测器模块,以及炉模块中的一个实施例。 每个模块都可插入气相色谱仪主机座的座内,并将其电子和气动装置快速连接到所述主机上的相应出口。 每个模块都有自己的加热元件。

    APPARATUS HAVING ONE OR MORE SENSORS FOR SAMPLING THE HEADSPACE AND PROCESS FOR SAMPLING THE HEADSPACE

    公开(公告)号:EP3578968A1

    公开(公告)日:2019-12-11

    申请号:EP19178014.7

    申请日:2019-06-04

    摘要: The present invention relates to an apparatus (1) for sampling the headspace, comprising: a mobile station (2) provided with a plurality of housing seats (21) to house a plurality of containers (100) for sampling the headspace; an oven (3); a blocking device (4) comprising at least one first mobile element (41) that moves between a first position adapted to prevent a container (100) from passing from the mobile station (2) to the oven (3), and a second position adapted to allow a container (100) to pass from the mobile station (2) to the oven (3); at least one first sensor (5a) placed upstream of the first mobile element (41), to detect the presence of a container (100) in a housing seat (21); a movement element (6) moving between said mobile station (2) and the oven (3), the movement element being configured to move a container (100) from the mobile station (2) to the oven (3).