Interface for use in a combined liquid chromatography - mass
spectrometry system
    3.
    发明授权
    Interface for use in a combined liquid chromatography - mass spectrometry system 失效
    用于组合液相色谱 - 质谱系统的界面

    公开(公告)号:US4112297A

    公开(公告)日:1978-09-05

    申请号:US811720

    申请日:1977-06-30

    摘要: A new interface is interposed between a liquid chromatograph and a mass spectrometer, and it consists of a nebulizer, an evaporator and a cooler. An effluent from the liquid chromatograph is nebulized by the nebulizer. The nebulized effluent is heated by the evaporator, and has only its solvent evaporated. A mixed fluid which consists of the evaporated solvent and the nebulized sample is guided to the cooler, and is cooled therein. At this time, the evaporated solvent is condensed again and is separated from the nebulized sample as a liquid. The nebulized sample left behind is guided to an ion source of the mass spectrometer.

    摘要翻译: 在液相色谱仪和质谱仪之间插入一个新的界面,它由雾化器,蒸发器和冷却器组成。 来自液相色谱仪的流出液被喷雾器雾化。 雾化的流出物通过蒸发器加热,仅溶剂蒸发。 由蒸发的溶剂和雾化样品组成的混合流体被引导到冷却器中并在其中冷却。 此时,蒸发的溶剂再次冷凝,并作为液体与雾化样品分离。 留下的雾化样品被引导到质谱仪的离子源。

    Process for producing acetaldehyde
    10.
    发明授权
    Process for producing acetaldehyde 失效
    乙醛生产方法

    公开(公告)号:US4521631A

    公开(公告)日:1985-06-04

    申请号:US620336

    申请日:1984-06-13

    CPC分类号: C07C45/34

    摘要: A process for producing acetaldehyde from ethylene under mild reaction conditions, selectively and with high yield is provided, which process comprises preparing a composite catalyst comprising a complex of a transition metal capable of forming an oxygen complex by coordination of oxygen molecule with the metal ion of the transition metal, and a complex of a transition metal capable of forming an ethylene complex by coordination of ethylene with the metal ion of the transition metal, and oxidizing ethylene activated by forming the ethylene complex with the combined oxygen in the oxygen complex, activated by forming the oxygen complex.

    摘要翻译: 提供了一种在温和的反应条件下,从温和的反应条件下,以高产率从乙烯中生产乙醛的方法,该方法包括制备复合催化剂,该复合催化剂包括能够通过氧分子与氧分子配位的过渡金属配合物与 过渡金属和能够通过乙烯与过渡金属的金属离子配位形成乙烯络合物的过渡金属的络合物,以及通过与氧络合物中的组合氧形成乙烯络合物来活化乙烯,由 形成氧络合物。