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公开(公告)号：US07880147B2
公开(公告)日：2011-02-01
申请号：US12019308
申请日：2008-01-24
CPC分类号： H01J49/067
摘要： Novel components reduce background noise caused by secondary ions generated by metastable entity bombardment in a mass spectrometric system. Layered structures for exit electrodes and deflector plates confine secondary ions in a local low-energy well, preventing them from entering the detector.
摘要翻译： 新型组分降低了质谱系统中由亚稳态实体轰击产生的二次离子引起的背景噪声。 出口电极和偏转板的分层结构将二次离子限制在局部低能井中，防止其进入检测器。
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公开(公告)号：US20140263203A1
公开(公告)日：2014-09-18
申请号：US14208699
申请日：2014-03-13
申请人： Peter J. Morrisroe
发明人： Peter J. Morrisroe
IPC分类号： H05H1/30
CPC分类号： H05H1/30
摘要： Certain embodiments described herein are directed to devices, systems and methods that comprise asymmetric induction devices. In some instances, the device can include a plurality of plate electrodes which can be spaced asymmetrically or a plurality of coils which can be spaced asymmetrically.
摘要翻译： 本文描述的某些实施例涉及包括不对称感应装置的装置，系统和方法。 在一些情况下，该装置可以包括可以不对称地间隔开的多个平板电极或可以不对称地间隔开的多个线圈。
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公开(公告)号：US08642954B2
公开(公告)日：2014-02-04
申请号：US13450762
申请日：2012-04-19
申请人： Juan C. Ivaldi , Cindy Anderau , Peter J. Morrisroe , Kaveh Kahen , Hamid Badiei
发明人： Juan C. Ivaldi , Cindy Anderau , Peter J. Morrisroe , Kaveh Kahen , Hamid Badiei
IPC分类号： H01J49/26
CPC分类号： B05B17/0646 , G01N21/714 , H01J49/0454
摘要： A method of introducing a sample into an atomic spectrometer utilizes a spray head including a vibratable mesh. A liquid sample is conducted to one face of the mesh and the mesh is vibrated to expel sample droplets from the other face of the mesh into the proximal end of a flow passage axially spaced from the mesh. Also, a low pressure gas as flowed into the proximal end of the flow passage to mix with the droplets to form an aerosol in the flow passage. The vibrating of the mesh is controlled to provide in the aerosol a selected total volume of monodisperse droplets while the flow of the carrier gas is independently controlled to provide a selected rate of flow of the aerosol along the flow passage thereby to optimize consumption of the sample. Apparatus for practicing the method is also disclosed.
摘要翻译： 将样品引入原子光谱仪的方法利用包括可振动网的喷头。 将液体样品传导到网的一个表面，并且网孔被振动以将样品液滴从网孔的另一面排出到与网状物轴向间隔开的流动通道的近端中。 而且，流入流路近端的低压气体与液滴混合以在流动通道中形成气溶胶。 控制网的振动以在气溶胶中提供选定的总体积的单分散液滴，同时独立地控制载气的流动以提供气流沿流动通道的选定流速，从而优化样品的消耗 。 还公开了用于实施该方法的装置。
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公开(公告)号：US4766287A
公开(公告)日：1988-08-23
申请号：US22910
申请日：1987-03-06
CPC分类号： H05H1/30 , H05H1/2475
摘要： An induction plasma system comprises a torch and an induction coil. A sample substance is injected into the plasma at an axial position that is adjustable while the plasma is being energized. The plasma-forming gas flows through the induction coil prior to passing through the plasma torch. A piezoelectric crystal is used for initiating the plasma. An oscillator network generates radio frequency power at a first frequency, and an output LC network that includes the induction coil is tuned to a second frequency higher than the first frequency. Means for maintaining constant power to the plasma includes an AC circuit for duty cycling AC power input to a DC power supply in response to a feedback signal relative to the rectified voltage. Thus a change in the rectified voltage effects an inverse change in the duty cycling such as to nullify the change in the rectified voltage.
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公开(公告)号：US08829386B2
公开(公告)日：2014-09-09
申请号：US13100416
申请日：2011-05-04
申请人： Peter J. Morrisroe
发明人： Peter J. Morrisroe
IPC分类号： B23K10/00
CPC分类号： B23K10/006 , B23K10/00 , H05H1/30
摘要： Certain embodiments described herein are directed to devices that can be used to sustain a low flow plasma. In certain examples, the low flow plasma can be sustained in a torch comprising an outer tube and an auxiliary tube within the outer tube. In some examples, the auxiliary tube comprises an effective length to match the shape of a low flow plasma sustained in the torch using a flat plate electrode. Methods and systems using the torches are also described.
摘要翻译： 本文描述的某些实施例涉及可用于维持低流量等离子体的装置。 在某些实例中，低流量等离子体可以在外管内包括外管和辅助管的手电筒中维持。 在一些示例中，辅助管包括有效长度以匹配使用平板电极在炬中持续的低流量等离子体的形状。 还描述了使用割炬的方法和系统。
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公开(公告)号：US20120325925A1
公开(公告)日：2012-12-27
申请号：US13450762
申请日：2012-04-19
申请人： Juan C. Ivaldi , Cindy Anderau , Peter J. Morrisroe , Kaveh Kahen , Hamid Badiei
发明人： Juan C. Ivaldi , Cindy Anderau , Peter J. Morrisroe , Kaveh Kahen , Hamid Badiei
IPC分类号： B05B17/06
CPC分类号： B05B17/0646 , G01N21/714 , H01J49/0454
摘要： A method of introducing a sample into an atomic spectrometer utilizes a spray head including a vibratable mesh. A liquid sample is conducted to one face of the mesh and the mesh is vibrated to expel sample droplets from the other face of the mesh into the proximal end of a flow passage axially spaced from the mesh. Also, a low pressure gas as flowed into the proximal end of the flow passage to mix with the droplets to form an aerosol in the flow passage. The vibrating of the mesh is controlled to provide in the aerosol a selected total volume of monodisperse droplets while the flow of the carrier gas is independently controlled to provide a selected rate of flow of the aerosol along the flow passage thereby to optimize consumption of the sample. Apparatus for practicing the method is also disclosed.
摘要翻译： 将样品引入原子光谱仪的方法利用包括可振动网的喷头。 将液体样品传导到网的一个表面，并且网孔被振动以将样品液滴从网孔的另一面排出到与网状物轴向间隔开的流动通道的近端中。 而且，流入流路近端的低压气体与液滴混合以在流动通道中形成气溶胶。 控制网的振动以在气溶胶中提供选定的总体积的单分散液滴，同时独立地控制载气的流动以提供气流沿流动通道的选定流速，从而优化样品的消耗 。 还公开了用于实施该方法的装置。
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公开(公告)号：US20110273260A1
公开(公告)日：2011-11-10
申请号：US13100490
申请日：2011-05-04
申请人： Peter J. Morrisroe
发明人： Peter J. Morrisroe
IPC分类号： H01F27/28
CPC分类号： H01J49/105 , G01N21/3103 , G01N21/73 , H01F5/00 , H01F27/23 , H01F27/2823 , H01F38/14 , H01J37/321 , H01J37/3211 , H01J49/025 , H05H1/30
摘要： Certain embodiments described herein are directed to induction devices comprising an oxidation resistant material. In certain examples, the induction device comprises a coil of wire that is produced from the oxidation resistant material. In some examples, the oxidation resistant induction device can be used to sustain an inductively coupled plasma in a torch.
摘要翻译： 本文描述的某些实施例涉及包含耐氧化材料的感应装置。 在某些实例中，感应装置包括由抗氧化材料制成的线圈。 在一些实例中，抗氧化感应装置可用于维持焊炬中的电感耦合等离子体。
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公开(公告)号：US20090189067A1
公开(公告)日：2009-07-30
申请号：US12019308
申请日：2008-01-24
IPC分类号： H01J49/26
CPC分类号： H01J49/067
摘要： Novel components reduce background noise caused by secondary ions generated by metastable entity bombardment in a mass spectrometric system. Layered structures for exit electrodes and deflector plates confine secondary ions in a local low-energy well, preventing them from entering the detector.
摘要翻译： 新型组分降低了质谱系统中由亚稳态实体轰击产生的二次离子引起的背景噪声。 出口电极和偏转板的分层结构将二次离子限制在局部低能井中，防止其进入检测器。
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公开(公告)号：US07511246B2
公开(公告)日：2009-03-31
申请号：US11218912
申请日：2005-09-02
申请人： Peter J. Morrisroe
发明人： Peter J. Morrisroe
IPC分类号： B23K10/00
CPC分类号： G01N21/73 , G01J3/443 , G01N21/68 , G01N2201/126 , H01J49/105
摘要： A device for sustaining a plasma in a torch is provided. In certain examples, the device comprises a first electrode configured to couple to a power source and constructed and arranged to provide a loop current along a radial plane of the torch. In some examples, the radial plane of the torch is substantially perpendicular to a longitudinal axis of the torch.
摘要翻译： 提供了一种用于在割炬中维持等离子体的装置。 在某些示例中，该装置包括被配置为耦合到电源并被构造和布置成沿着焊炬的径向平面提供回路电流的第一电极。 在一些示例中，焊炬的径向平面基本上垂直于焊炬的纵向轴线。
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公开(公告)号：US07106438B2
公开(公告)日：2006-09-12
申请号：US10730779
申请日：2003-12-09
申请人： Peter J. Morrisroe , Thomas Myles
发明人： Peter J. Morrisroe , Thomas Myles
CPC分类号： H01J49/105 , G01N21/73
摘要： In a method of spectroscopically analyzing a sample, a plasma is generated. A magnetic field is generated by a magnetic dipole wherein the plasma is confined within the magnetic field. Sample atoms are introduced into the plasma wherein energized atoms of the sample are confined. The spectral composition or mass-to-charge ratio of the energized sample atoms is analyzed. In a spectroscopic system a magnetic dipole has an associated magnetic field. A plasma is confined within the magnetic field and a sample of energized atoms introduced into the plasma. A spectrometer analyzes the energized atoms for the mass-to-charge ratio or for their spectral composition.
摘要翻译： 在对样品进行光谱分析的方法中，产生等离子体。 磁场由磁偶极子产生，其中等离子体被限制在磁场内。 将样品原子引入等离子体，其中样品的激发原子被限制。 分析通电样品原子的光谱组成或质荷比。 在光谱系统中，磁偶极子具有相关的磁场。 等离子体被限制在磁场内，并且将有源原子的样品引入等离子体中。 光谱仪分析带电原子的质荷比或其光谱组成。
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