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公开(公告)号:US06600155B1
公开(公告)日:2003-07-29
申请号:US09807796
申请日:2001-09-06
IPC分类号: H01J4916
CPC分类号: H01J49/40 , B82Y15/00 , B82Y30/00 , H01J49/0068
摘要: A Time-Of-Flight mass spectrometer (1) is configured with a pulsing region (10) and electronic controls to cause the directing of ions to a surface (12) in the Time-Of-Flight pulsing region (10). The population of ions resulting from the collecting of said ions on or near said surface (12) is subsequently accelerated into the Time-Of-Flight tube (17) for mass to charge analysis. Ions produced away from said surface (12) can be directed to the surface (12) with high or low surface collisional energies. Higher energy ion collisions with the surface (12) can result in Surface Induced Dissociation fragmentation and the resulting ion fragment population can be mass analyzed. Mass analysis can be performed prior to directing the ions to the surface allowing MS/MS Time-Of-Flight mass analysis with SID. Ion to surface low energy collisions or soft landings resulting in little or no ion fragmentation provide a means for spatially focusing ions on or near the surface prior to accelerating the surface collected ions into the Time-Of-Flight tube.
摘要翻译: 飞行时间质谱仪(1)配置有脉冲区域(10)和电子控制器以引导离子到飞行时间脉动区域(10)中的表面(12)。 随后将所述离子收集在所述表面(12)上或其附近产生的离子群随后被加速到飞行时间管(17)中以进行大量电荷分析。 离开所述表面(12)产生的离子可以以高或低的表面碰撞能量被引导到表面(12)。 与表面(12)的高能离子碰撞可导致表面诱导解离破碎,并且可以质量分析得到的离子片段。 在将离子引导到表面之前可以进行质量分析,允许使用SID进行MS / MS飞行时间质量分析。 离子到表面的低能量碰撞或软着陆导致很少或没有离子碎裂提供了在将表面收集的离子加速到飞行时间管之前将离子空间聚焦在表面上或附近的手段。
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公开(公告)号:US06573494B1
公开(公告)日:2003-06-03
申请号:US10022116
申请日:2001-12-04
IPC分类号: H01J4910
CPC分类号: H01J49/167 , H01J49/107 , H01J49/165
摘要: A single or multiple layer curved Electrospray sample introduction means has been configured in an Atmospheric Pressure Ion (API) source interfaced to a mass analyzer. Sample solutions introduced through curved or bent sample introduction Electrospray (ES) probes configured in an API source are sprayed from the ES probe tip at an angle which differs from centerline of the ES probe body. Single or multiple curved ES probes can be configured in an Atmospheric Pressure Ion source interfaced to mass analyzers. Curved ES probes can also be configured in an API source which includes Atmospheric Pressure Chemical ionization.
摘要翻译: 单个或多层弯曲的电喷雾样品引入装置已经配置在与质量分析仪接口的大气压离子(API)源中。 通过弯曲或弯曲样品引入引入的样品溶液以API源形式配置的电喷雾(ES)探针以不同于ES探针体中心线的角度从ES探针尖端喷射。 单个或多个弯曲的ES探头可以在与大量分析仪接口的大气压离子源中配置。 弯曲的ES探头也可以在包含大气压化学电离的API源中配置。
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公开(公告)号:US06326616B1
公开(公告)日:2001-12-04
申请号:US09173195
申请日:1998-10-15
IPC分类号: H01J4910
CPC分类号: H01J49/167 , H01J49/107 , H01J49/165
摘要: A single or multiple layer curved Electrospray sample introduction means has been configured in an Atmospheric Pressure Ion (API) source interfaced to a mass analyzer. Sample solutions introduced through curved or bent sample introduction Electrospray (ES) probes configured in an API source are sprayed from the ES probe tip at an angle which differs from centerline of the ES probe body. Single or multiple curved ES probes can be configured in an Atmospheric Pressure Ion source interfaced to mass analyzers. Curved ES probes can also be configured in an API source which includes Atmospheric Pressure Chemical ionization.
摘要翻译: 单个或多层弯曲的电喷雾样品引入装置已经配置在与质量分析仪接口的大气压离子(API)源中。 通过弯曲或弯曲样品引入引入的样品溶液以API源形式配置的电喷雾(ES)探针以不同于ES探针体中心线的角度从ES探针尖端喷射。 单个或多个弯曲的ES探头可以在与大量分析仪接口的大气压离子源中配置。 弯曲的ES探头也可以在包含大气压化学电离的API源中配置。
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公开(公告)号:US5852294A
公开(公告)日:1998-12-22
申请号:US887730
申请日:1997-07-03
CPC分类号: H01J49/063 , H01J49/068 , H01J49/4255
摘要: A miniature multipole rod assembly which can be operated as an ion guide or a mass analyzer is constructed by bonding individual rods directly to plates which are separated by ceramic insulators. The multipole rod assemblies are constructed by using a fixture which locates and orients all elements during the process or bonding the rods to the disks.
摘要翻译: 可以通过将单独的杆直接粘接到由陶瓷绝缘体分离的板上而构成可以作为离子导向器或质量分析器操作的微型多极杆组件。 多极杆组件通过使用夹具来构造,所述夹具在工艺过程中定位和定向所有元件,或者将棒粘合到盘上。
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公开(公告)号:US4437859A
公开(公告)日:1984-03-20
申请号:US287861
申请日:1981-08-03
CPC分类号: A61M5/14526 , A61M2005/14264 , A61M2005/14506 , A61M2005/14513 , A61M5/1456
摘要: A syringe driving unit comprising free pistons in interconnected cylindrical chambers, one of the pistons carrying a syringe plunger driver and being biased, directly or indirectly, in the driving direction, and one piston being movable to force both pistons into primed or loaded position, the connections between the chambers including a pressure regulator, flow regulator and a needle valve to regulate adjustably the return flow or hydraulic fluid corresponding to the movement of the driving piston. The priming piston may be moved mechanically or pneumatically, and fail-safe mechanism may be provided, if needed, to become effective in case of leakage. Bolus delivery, to augment optionally the adjusted flow, is also provided for.
摘要翻译: 注射器驱动单元,其包括在相互连接的圆柱形腔室中的自由活塞,其中一个活塞承载注射器柱塞驱动器,并且在驱动方向上被直接或间接地偏压,并且一个活塞可移动以迫使两个活塞进入起动或加载位置, 腔室之间的连接包括压力调节器,流量调节器和针阀,以可调节地调节与驱动活塞的运动相对应的回流或液压流体。 起动活塞可以机械地或气动地移动,并且如果需要,可以提供故障安全机构以在泄漏的情况下变得有效。 还提供了膨胀输送,以便可选地增加经调整的流量。
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