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    • 3. 发明申请
    • RADIAL ARRAYS OF NANO-ELECTROSPRAY IONIZATION EMITTERS AND METHODS OF FORMING ELECTROSPRAYS
    • 纳米电子放电发射体的辐射阵列及形成电沉积的方法
    • WO2010051051A3
    • 2010-09-02
    • PCT/US2009035817
    • 2009-03-03
    • BATTELLE MEMORIAL INSTITUTEKELLY RYANTANG KEQISMITH RICHARD D
    • KELLY RYANTANG KEQISMITH RICHARD D
    • H01J49/16
    • H01J49/167
    • Electrospray ionization emitter arrays, as well as methods for forming electrosprays, are described. The arrays are characterized by a radial configuration of three or more nano- electrospray ionization emitters without an extractor electrode. The methods are characterized by distributing fluid flow of the liquid sample among three or more nano- electrospray ionization emitters, forming an electrospray at outlets of the emitters without utilizing an extractor electrode, and directing the electrosprays into an entrance to a mass spectrometry device. Each of the nano-electrospray ionization emitters can have a discrete channel for fluid flow. The nano-electrospray ionization emitters are circularly arranged such that each is shielded substantially equally from an electrospray-inducing electric field.
    • 描述了电喷雾电离发射器阵列,以及用于形成电喷雾的方法。 阵列的特征在于没有提取器电极的三个或更多个纳米电喷雾电离发射器的径向构型。 所述方法的特征在于在三个或更多个纳米电喷雾电离发射器之间分配液体样品的流体流动,在不使用提取器电极的情况下在发射器的出口处形成电喷雾,并将电喷雾引导到质谱装置的入口。 每个纳米电喷雾电离发射器可以具有用于流体流动的离散通道。 纳米电喷雾电离发射器是圆形布置的,使得每个发射器基本上等同于电喷雾诱导电场屏蔽。
    • 4. 发明申请
    • IMPROVED HIGH PERFORMANCE ION MOBILITY SPECTROMETRY USING HOURGLASS ELECTRODYNAMIC FUNNEL AND INTERNAL ION FUNNEL
    • 改进的高性能离子电离光谱使用HOURGLASS ELECTRODYMMIC FUNNEL和内部离子FUNNEL
    • WO2005045876A3
    • 2006-05-26
    • PCT/US2004029181
    • 2004-09-07
    • BATTELLE MEMORIAL INSTITUTESMITH RICHARD DTANG KEQISHVARTSBURG ALEXANDRE A
    • SMITH RICHARD DTANG KEQISHVARTSBURG ALEXANDRE A
    • H01J49/04G01N27/64H01J49/02H01J49/06H01J49/16H01J49/40H01J49/42
    • H01J49/066G01N27/622H01J49/40
    • A method and apparatus enabling increased sensitivity in ion mobility spectrometry/mass spectrometry instruments which substantially reduces or eliminates the loss of ions in ion mobility spectrometer drift tubes utilizing a device for transmitting ions from an ion source which allows the transmission of ions without significant delay to an hourglass electrodynamic ion funnel at the entrance to the drift tube and/or an internal ion funnel at the exit of the drift tube. An hourglass electrodynamic funnel is formed of at least an entry element, a center element, and an exit element, wherein the aperture of the center element is smaller than the aperture of the entry element and the aperture of the exit elements. Ions generated in a relatively high pressure region by an ion source at the exterior of the hourglass electrodynamic funnel are transmitted to a relatively low pressure region at the entrance of the hourglass funnel through a conductance limiting orifice. Alternating and direct electrical potentials are applied to the elements of the hourglass electrodynamic funnel thereby drawing ions into and through the hourglass electrodynamic funnel thereby introducing relatively large quantities of ions into the drift tube while maintaining the gas pressure and composition at the interior of the drift tube as distinct from those at the entrance of the electrodynamic funnel and allowing a positive gas pressure to be maintained within the drift tube, if desired. An internal ion funnel is provided within the drift tube and is positioned at the exit of said drift tube. The advantage of the internal ion funnel is that ions that are dispersed away from the exit aperture within the drift tube, such as those that are typically lost in conventional drift tubes to any subsequent analysis or measurement, are instead directed through the exit of the drift tube, vastly increasing the amount of ions exiting the drift tube.
    • 一种能够提高离子迁移光谱/质谱仪器灵敏度的方法和装置,其基本上减少或消除了离子迁移谱仪漂移管中的离子损失,其利用离子源传输离子的装置,离子源允许离子传输而不会显着延迟 漂移管入口处的沙漏电动力离子漏斗和/或漂移管出口处的内部离子漏斗。 沙漏电动漏斗由至少一个入口元件,中心元件和出口元件形成,其中中心元件的孔径小于入口元件的孔径和出口元件的孔径。 在沙漏电动漏斗的外部由离子源在较高压力区域产生的离子通过电导限制孔传输到沙漏漏斗入口处的较低压力区域。 将交替和直接的电势施加到沙漏电动力学漏斗的元件,从而将离子吸入和穿过沙漏电动力学漏斗,从而将相对大量的离子引入漂移管中,同时保持气体压力和组成在漂移管的内部 与电动漏斗的入口处的那些不同,并且如果需要,允许在漂移管内保持正的气体压力。 内部离子漏斗设置在漂移管内并位于所述漂移管的出口处。 内部离子漏斗的优点是离散在漂移管内的出口孔的离子,例如通常在常规漂移管中丢失到任何后续分析或测量中的离子,而是通过漂移出口 管,大大增加离开漂移管的离子的量。