-
公开(公告)号：US08502162B2
公开(公告)日：2013-08-06
申请号：US13164386
申请日：2011-06-20
CPC分类号： H01J49/044 , H01J49/10
摘要： An atmospheric pressure ionization apparatus includes a chamber, an ion inlet structure, an electrode, a sample emitter, and a gas passage. The ion inlet structure includes a sampling orifice. The electrode includes an electrode bore. An ionization region is defined between the ion inlet structure and the electrode. The flared structure is coaxially disposed about the ion inlet structure, and extends along an outward direction that includes a radial component relative to the sampling axis. The sample emitter is oriented at an angle to the sampling axis for directing a sample stream toward the ionization region. The gas passage directs a stream of gas from a gas source to the chamber. The flared structure and the wall cooperatively form an outward-directed portion of the gas passage that extends annularly about the sampling axis and along the outward direction. The gas flows through the outward-directed portion, around the flared structure, and toward the ionization region and the electrode bore.
摘要翻译： 大气压离子化装置包括室，离子入口结构，电极，样品发射体和气体通道。 离子入口结构包括采样孔。 电极包括电极孔。 在离子入口结构和电极之间限定电离区域。 扩口结构围绕离子入口结构同轴设置，并且沿着包括相对于采样轴线的径向分量的向外方向延伸。 样品发射器与采样轴成一角度定向，以将样品流引向电离区。 气体通道将气流从燃气源引导到腔室。 扩口结构和壁协同地形成气体通道的向外的部分，其环绕取样轴线并沿着向外方向延伸。 气体在扩张结构周围流过外向部分，并朝向电离区域和电极孔流动。
-
公开(公告)号：US4746068A
公开(公告)日：1988-05-24
申请号：US924709
申请日：1986-10-29
CPC分类号： H01J49/0018 , B05B7/0483 , G01N30/7246 , H01J49/045
摘要： A nebulizer assembly particularly well adapted as a liquid chromatograph/mass spectrometer interface including a pair of nebulizer plates, a base, and a cap for tightly holding the nebulizer plates against the base. A first nebulizer plate has a centrally located outlet orifice and a radially extending groove, and the second plate has a centrally located gas inlet orifice and a radially displaced liquid inlet orifice. The gas inlet orifice aligns with the outlet orifice and an aperture provided in the cap, and the liquid inlet orifice aligns with a section of the groove provided in the first nebulizer plate. When the gas inlet orifice is coupled to a pressurized gas source and the liquid inlet orifice is coupled to a pressurized liquid source, uniform droplets having a diameter of approximately 10 microns can be formed from an outlet orifice twice that diameter.
摘要翻译： 特别适合作为液相色谱仪/质谱仪界面的喷雾器组件，包括一对雾化器板，底座和盖子，用于将喷雾器板紧紧地固定在基座上。 第一雾化器板具有位于中心的出口孔和径向延伸的槽，并且第二板具有位于中心的气体入口孔和径向移位的液体入口孔。 气体入口孔与出口孔和设置在盖中的孔对准，并且液体入口孔与设置在第一雾化器板中的槽的一部分对准。 当气体入口孔连接到加压气体源并且液体入口孔连接到加压液体源时，可以从两个直径的出口孔形成具有约10微米直径的均匀液滴。
-
3.发明授权Apparatus for forming liquid droplets having a mechanically fixed inner microtube 有权用于形成具有机械固定内微管的液滴的装置
公开(公告)号：US6032876A
公开(公告)日：2000-03-07
申请号：US203907
申请日：1998-12-01
申请人： James L. Bertsch , Steven M. Fischer , Darrell L. Gourley , Harvey D. Loucks, Jr. , Hans-Peter Zimmerman
发明人： James L. Bertsch , Steven M. Fischer , Darrell L. Gourley , Harvey D. Loucks, Jr. , Hans-Peter Zimmerman
CPC分类号： H01J49/0431 , B05B15/06 , B05B5/0255 , B05B7/066 , B05B7/068 , G01N30/7246 , H01J49/167 , B05B13/0278 , B05B7/0876 , G01N2030/847
摘要： The invention relates to an apparatus for forming liquid droplets, such as a micro nebulizer, useful for preparing samples for subsequent analysis via MS, AA, ICP, CE/MS, and similar analytical systems. The apparatus has a mechanically stabilized inner microtube or needle, thereby ensuring controllably uniform droplet size. The mechanical stabilization is provided by securing the inner microtube or needle, such as by narrowing the inner diameter of the outer microtube or otherwise narrowing the annular intermediate space between the inner and outer microtubes for a predetermined length. Thus, the inner microtube is secured in a centered or otherwise predetermined fixed radial position, with minimum perturbation of the fluid flow. Further, a tip, when coupled with the exit end of the outer microtube, provides a region in which the sheath fluid flow in the outer microtube stabilizes prior to both exiting the tip and colliding with the liquid analyte exiting the inner microtube.
摘要翻译： 本发明涉及用于形成液滴的装置，例如微型喷雾器，可用于制备样品用于随后通过MS，AA，ICP，CE / MS和类似分析系统的分析。 该装置具有机械稳定的内微管或针，从而确保可控制地均匀的液滴尺寸。 通过固定内部微管或针来提供机械稳定性，例如通过使外部微管的内径变窄或以其它方式使内部和外部微管之间的环形中间空间变窄预定长度。 因此，内部微管被固定在中心或另外预定的固定的径向位置，同时具有最小的流体流扰动。 此外，当与外部微管的出口端耦合时，尖端提供了一个区域，其中外部微管中的鞘液流动在两个离开尖端之前稳定，并且与离开内微管的液体分析物碰撞。
-
公开(公告)号：US08481963B2
公开(公告)日：2013-07-09
申请号：US13406157
申请日：2012-02-27
IPC分类号： H01J37/147 , H01J37/04 , G21K1/04 , H01J49/06
CPC分类号： H01J37/045 , G21K1/04 , H01J37/147 , H01J49/067
摘要： Described herein is an ion slicer that: a) accelerates an ion beam towards a first electrode comprising an ion entrance slit, where the first electrode blocks a portion of ions with high displacement from the axis of the ion beam, thereby slicing the ion beam; and then b) decelerates the ion beam after it is sliced.
摘要翻译： 本文描述的是一种离子切片机，其特征在于：a）将离子束加速至包括离子入口狭缝的第一电极，其中第一电极阻挡离子束轴线高位移的一部分离子，从而切割离子束; 然后b）在离子束切片后减速。
-
5.发明授权Apparatus for forming liquid droplets having a mechanically fixed inner microtube 失效用于形成具有机械固定内微管的液滴的装置
公开(公告)号：US5868322A
公开(公告)日：1999-02-09
申请号：US722644
申请日：1996-09-27
CPC分类号： H01J49/0431 , B05B15/06 , B05B5/0255 , B05B7/066 , B05B7/068 , G01N30/7246 , H01J49/167 , B05B13/0278 , B05B7/0876 , G01N2030/847
摘要： The invention relates to an apparatus for forming liquid droplets, such as a micro nebulizer, useful for preparing samples for subsequent analysis via MS, AA, ICP, CE/MS, and similar analytical systems. The apparatus has a mechanically stabilized inner microtube or needle, thereby ensuring controllably uniform droplet size The mechanical stabilization is provided by securing the inner microtube or needle, such as by narrowing the inner diameter of the outer microtube or otherwise narrowing the annular intermediate space between the inner and outer microtubes for a predetermined length. Thus, the inner microtube is secured in a centered or otherwise predetermined fixed radial position, with minimum perturbation of the fluid flow. Further, a tip, when coupled with the exit end of the outer microtube, provides a region in which the sheath fluid flow in the outer microtube stabilizes prior to both exiting the tip and colliding with the liquid analyte exiting the inner microtube.
摘要翻译： 本发明涉及用于形成液滴的装置，例如微型喷雾器，可用于制备样品用于随后通过MS，AA，ICP，CE / MS和类似分析系统的分析。 该装置具有机械稳定的内部微管或针，从而确保可控地均匀的液滴尺寸通过固定内部微管或针来提供机械稳定性，例如通过使外部微管的内径变窄或以其他方式使第二微管之间的环形中间空间变窄 内部和外部微管，预定长度。 因此，内部微管被固定在中心或另外预定的固定的径向位置，同时具有最小的流体流扰动。 此外，当与外部微管的出口端耦合时，尖端提供了一个区域，其中外部微管中的鞘液流动在两个离开尖端之前稳定，并且与离开内微管的液体分析物碰撞。
-
公开(公告)号：US06926783B2
公开(公告)日：2005-08-09
申请号：US10127040
申请日：2002-04-19
CPC分类号： H01J49/4215 , H01J9/14 , H01J49/068 , H01J49/4255
摘要： A method for manufacturing a multipole assembly for use in mass spectrometers, residual gas analyzers, mass filters, ion containment apparatus and particle beam accelerators. A precision mandrel tool is utilized for positioning a plurality of electrode rods in position during the manufacturing process. The electrode rods are placed on the mandrel. At least one insulator is positioned about the mandrel-rod assembly such that the mandrel-rod assembly psses through the insulator. The rods are tightly clamped to the mandrel and adhesive is placed in a gap established between each rod and the insulator. The adhesive is cured such that it acts both as a rigid bond between the insulator and each rod, as well as a precision spacer for positioning each rod in a precision position after the mandrel is removed from the assembly.
-
公开(公告)号：US08455814B2
公开(公告)日：2013-06-04
申请号：US13087748
申请日：2011-04-15
IPC分类号： H01J49/00
CPC分类号： H01J49/063 , H01J49/022
摘要： In an embodiment, a collision cell comprises rods each having a first end and a second end remote from the first end; an inductor connected between adjacent pairs of rods; and means for applying a radio frequency (RF) voltage between adjacent pairs of rods. The RF voltage creates a multipole field in a region between the rods; and means for applying a direct current (DC) voltage drop along a length of each of the rods.
摘要翻译： 在一个实施例中，碰撞单元包括各自具有远离第一端的第一端和第二端的杆; 连接在相邻的杆对之间的电感器; 以及用于在相邻的杆对之间施加射频（RF）电压的装置。 RF电压在棒之间的区域中产生多极场; 以及用于沿着每个所述杆的长度施加直流（DC）电压降的装置。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.018 秒)
