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    Device for collecting samples
    55.
    发明授权
    Device for collecting samples 失效
    收集样品的装置

    公开(公告)号：US4827134A

    公开(公告)日：1989-05-02

    申请号：US119704

    申请日：1987-11-12

    申请人： Helge Willner ,  Arno Simon

    发明人： Helge Willner ,  Arno Simon

    IPC分类号： G01N21/3504 ,  G01N30/80 ,  G01N30/84 ,  G01N21/00

    CPC分类号： G01N30/84 ,  G01N21/3504 ,  G01N30/80 ,  G01N2021/1761 ,  G01N2030/8417

    摘要： As a means for connecting a gas chromatograph and an IR-spectrometer, devices are used which include a cooled carrier which allows to condensate the substances supplied by the gas chromatograph on its surface where they may be examined by spectroscopy. The examination of a new sample makes necessary the evaporation of the substances condensated on this surface before. Up to now, the heating and the cooling of the carrier which was necessary to this end, took a rather long time. Further, the heating of the carrier was limited to a temperature at which not all substances could be completely eliminated from the surface of the carrier. Now, the invention provides for a thermal decoupling of the carrier from the cooling device. Such decoupling allows to heat the carrier to higher tempreatures and to reduce the time needed for performing a measuring cycle, since as a result of the decoupling the cooling device is not heated but the heating is limited to the small mass of the carrier. A removable coupling may be effected by means of a thermally conducting mechanical connection which may be separated, of a gas stream which may be interrupted, or of moving the carrier from a cooling zone to a heating zone.

    摘要翻译： 作为连接气相色谱仪和IR光谱仪的手段，使用的装置包括冷却的载体，其允许将气相色谱仪提供的物质在其表面上进行光谱分析。 对新样品的检查需要先蒸发在此表面上冷凝的物质。 到目前为止，为此目的需要的载体的加热和冷却花了相当长的时间。 此外，载体的加热限于不能从载体表面完全除去所有物质的温度。 现在，本发明提供了载体与冷却装置的热解耦。 这种去耦允许将载体加热到更高的温度并且减少执行测量循环所需的时间，因为由于去耦的结果，冷却装置不被加热，而是加热被限制在载体的小质量上。 可移动联接可以通过可能被间断的气流的导热机械连接或将载体从冷却区移动到加热区来实现。