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公开(公告)号：US07462822B2
公开(公告)日：2008-12-09
申请号：US11343922
申请日：2006-01-31
IPC分类号： H01J49/26
CPC分类号： H01J49/0404
摘要： The invention relates to methods and devices for the transport of ions generated in gases near atmospheric pressure into the vacuum system of a mass spectrometer. Instead of the single capillary customary in commercial instruments, the invention uses a multichannel plate with hundreds of thousands of very short and narrow capillaries, whose total gas throughput is no higher than that of a normal single capillary. The large-area take-up of ions in the gas flow greatly increases the transfer yield. If the channels are conductive, this prevents the inside surfaces becoming charged. An ion funnel can separate the ions from the gas flow in the vacuum and focus them. Gas-dynamic focusing in an electric decelerating field reduces ion losses caused by wall collisions and prevents very light ions (protons, water clusters) from entering the vacuum. Staged multichannel plates reduce pumping requirements.
摘要翻译： 本发明涉及用于将在大气压附近的气体中产生的离子输送到质谱仪的真空系统中的方法和装置。 代替商业仪器中的单一毛细管常规，本发明使用具有数十万个非常短且窄的毛细管的多通道板，其总气体通量不高于正常单个毛细管。 气流中大面积吸收离子大大增加了转移产率。 如果通道是导电的，则防止内表面充电。 离子漏斗可以将离子与真空中的气流分离，并将其聚焦。 电动减速场中的气动聚焦减少了由壁碰撞引起的离子损失，并防止非常轻的离子（质子，水团）进入真空。 分段多通道板减少泵送要求。
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公开(公告)号：US07485853B2
公开(公告)日：2009-02-03
申请号：US11442655
申请日：2006-05-26
IPC分类号： B01D59/44
CPC分类号： G01N30/7233 , G01N30/38 , G01N30/80 , G01N2030/8447
摘要： The invention relates to a mass spectrometric mixture analysis to determine both simple mass spectra of the substances as well as more detailed information about structures and other characteristics of the substances. The invention consists in temporally separating the substance mixture in a separating device, splitting the eluating flow of substances into at least two partial flows and measuring the substances in the different partial flows by mass spectrometry. A direct measurement provides a series of spectra whose evaluation is used for optimal control of the time at which a spectrum of another, delayed partial flow is acquired and the type of this measurement procedure. The substances of the delayed partial flows or their ions can thereby be chemically or physically modified in a variety of ways in order to provide the molecular weight as well as more detailed information.
摘要翻译： 本发明涉及一种用于确定物质的简单质谱的质谱混合物分析以及关于物质的结构和其它特征的更详细的信息。 本发明在时间上分离分离装置中的物质混合物，将物质的洗脱流分解成至少两个部分流，并通过质谱法测量不同部分流中的物质。 直接测量提供了一系列光谱，其评估用于获得另一个延迟部分流的光谱的时间的最佳控制以及该测量过程的类型。 因此，延迟的部分流动物质或其离子可以以各种方式进行化学或物理修饰，以提供分子量以及更详细的信息。
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公开(公告)号：US20060186329A1
公开(公告)日：2006-08-24
申请号：US11343922
申请日：2006-01-31
IPC分类号： H01J49/00
CPC分类号： H01J49/0404
摘要： The invention relates to methods and devices for the transport of ions generated in gases near atmospheric pressure into the vacuum system of a mass spectrometer. Instead of the single capillary customary in commercial instruments, the invention uses a multichannel plate with hundreds of thousands of very short and narrow capillaries, whose total gas throughput is no higher than that of a normal single capillary. The large-area take-up of ions in the gas flow greatly increases the transfer yield. If the channels are conductive, this prevents the inside surfaces becoming charged. An ion funnel can separate the ions from the gas flow in the vacuum and focus them. Gas-dynamic focusing in an electric decelerating field reduces ion losses caused by wall collisions and prevents very light ions (protons, water clusters) from entering the vacuum. Staged multichannel plates reduce pumping requirements.
摘要翻译： 本发明涉及用于将在大气压附近的气体中产生的离子输送到质谱仪的真空系统中的方法和装置。 代替商业仪器中的单一毛细管常规，本发明使用具有数十万个非常短且窄的毛细管的多通道板，其总气体通量不高于正常单个毛细管。 气流中大面积吸收离子大大增加了转移产率。 如果通道是导电的，则防止内表面充电。 离子漏斗可以将离子与真空中的气流分离，并将其聚焦。 电动减速场中的气动聚焦减少了由壁碰撞引起的离子损失，并防止非常轻的离子（质子，水团）进入真空。 分段多通道板减少泵送要求。
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