Apparatus for dispensing a sample in electrospray mass spectrometers
    1.
    发明授权
    Apparatus for dispensing a sample in electrospray mass spectrometers 失效
    用于在电喷雾质谱仪中分配样品的装置

    公开(公告)号:US07265348B2

    公开(公告)日:2007-09-04

    申请号:US10534301

    申请日:2003-11-07

    IPC分类号: H01J49/00 H01J49/04 B01D59/44

    CPC分类号: H01J49/0018 H01J49/167

    摘要: The present invention relates to an apparatus to dispense a sample for subsequent electrospray ionisation (ESI) mass spectrometry (MS) analysis, to a method of fabricating such apparatus and to applications of such apparatus in biological and chemical analysis. The apparatus consists of an electrically non-conductive substrate comprising at least two covered microstructures (generally microchannels) having one extremity formed at the edge of the substrate, one of said microstructures containing the sample to be dispensed into a mass spectrometer by electrospray ionisation and at least a second of said microstructure containing a fluid used as sheath liquid or sheath gas, said at least two microstructures being formed in such a manner that the sample and the sheath liquid/gas come in contact to each other and/or are mixed directly in the Taylor cone of the spray.

    摘要翻译: 本发明涉及一种用于随后的电喷雾离子化(ESI)质谱(MS)分析的样品的分配装置,涉及制造这种装置的方法以及这种装置在生物和化学分析中的应用。 该装置由包括至少两个覆盖的微结构(通常为微通道)的非导电衬底组成,其具有在衬底的边缘处形成的一个末端,所述微结构之一包含通过电喷雾电离分配到质谱仪中的样品 所述至少二分之一的所述微结构包含用作鞘液或鞘气的流体,所述至少两个微结构以这样的方式形成,使得样品和鞘液/气彼此接触和/或直接混合在 泰勒锥的喷雾。

    Apparatus and method for separating an analyte
    4.
    发明授权
    Apparatus and method for separating an analyte 失效
    用于分离分析物的装置和方法

    公开(公告)号:US07390389B2

    公开(公告)日:2008-06-24

    申请号:US10486181

    申请日:2002-08-30

    IPC分类号: G01N27/447 G01N27/453

    CPC分类号: G01N27/44795 G01N27/44773

    摘要: The present invention relates to an apparatus and method for the separation and purification of charged and neutral compounds in an analyte solution by electrophoretic means using a plurality of compartments (1) to contain the analyte solution, an chemical buffering system (2) to fix a pH value or a pH gradient in its portion(s) contacting the analyte solution and an electrical field imposed by electrical means (4) disposed in at least two of said compartments. This invention allows one to differentially separate charged and neutral compounds, to extract the migrating compounds from the chemical buffering system (2), to recover the purified compounds mainly in solution and to collect them in the various compartments (4), preferably at various pI.

    摘要翻译: 本发明涉及一种用分离和纯化分析物溶液中的带电荷和中性化合物的装置和方法,该电泳和中性化合物通过使用多个隔室(1)以包含分析物溶液的电泳装置,化学缓冲系统(2) pH值或其与分析物溶液接触的部分中的pH梯度和由设置在所述隔室中的至少两个中的电气装置(4)施加的电场。 本发明允许差异地分离带电和中性化合物,以从化学缓冲系统(2)中提取迁移的化合物,以主要在溶液中回收纯化的化合物并将其收集在各个室(4)中,优选以各种pI 。