公开(公告)号：US20160260594A1

公开(公告)日：2016-09-08

申请号：US14677996

申请日：2015-04-03

Applicant: Paul I. Hendricks

Inventor： Paul I. Hendricks

IPC: H01J49/00 ,  H01J49/04 ,  H01J49/06 ,  H01J49/24

CPC classification number: H01J49/0022 ,  H01J49/044 ,  H01J49/066 ,  H01J49/24

Abstract: An inlet and vacuum system for a portable, or handheld, mass spectrometer. The mass spectrometer comprises three vacuum chambers, which includes two ion funnels connected in series in the first two vacuum chambers, followed by a mass spectrometer analyzer and ion detector in the third vacuum chamber. The ion funnels are arranged with their central axes aligned in a linear fashion. The sample inlet to the portable mass spectrometer is from an external ion source, typically operating at atmospheric, or near atmospheric, pressure. An improvement in desolvation, and a reduction in the injection of neutrals, excited state molecules, and particulates into the analyzer is achieved by incorporating a lateral offset for the inlet capillary used to transfer ions into the first injection funnel. Additional efficiency for ion focusing is achieved by replacing the ion guide, typically used with atmospheric pressure ionization sources, with an additional ion funnel.

Abstract translation: 用于便携式或手持式质谱仪的入口和真空系统。 质谱仪包括三个真空室，其包括在前两个真空室中串联连接的两个离子漏斗，随后是第三真空室中的质谱仪分析仪和离子检测器。 离子漏斗被布置成其中心轴以线性方式对准。 便携式质谱仪的样品入口来自外部离子源，通常在大气压或接近大气压下运行。 通过对用于将离子转移到第一注入漏斗中的入口毛细管的侧向偏移来实现去溶剂化的改进以及将中性粒子，激发态分子和微粒注入到分析器中的减少。 通过用额外的离子漏斗代替通常与大气压电离源一起使用的离子导向器实现离子聚焦的附加效率。

公开(公告)号：US20160071709A1

公开(公告)日：2016-03-10

申请号：US14483098

申请日：2014-09-10

Applicant: Paul I. Hendricks

Inventor： Paul I. Hendricks

IPC: H01J49/00 ,  H01J49/06

CPC classification number: H01J49/0013 ,  H01J49/009 ,  H01J49/4225 ,  H01J49/424

Abstract: Apparatus and methods for controlling miniaturized arrays of ion traps, including cylindrical ion traps, rectilinear ion traps, and linear ion traps. Improved methods for applying supplemental AC signals to individual ion traps in an ion trap array. Methods of organizing ion trap arrays and operating the arrays in a manner to improve sensitivity, resolution and mass accuracy. Techniques for performing simultaneous detection of multiple compounds from ion trap arrays. Optimization of ion trap performance by dynamic optimization or adjustment of RF trapping frequency and voltage amplitude.

Abstract translation: 用于控制离子阱的小型化阵列的装置和方法，包括圆柱形离子阱，直线离子阱和线性离子阱。 将补充AC信号用于离子阱阵列中的各个离子阱的改进方法。 组织离子阱阵列并以提高灵敏度，分辨率和质量精度的方式操作阵列的方法。 用于从离子阱阵列同时检测多种化合物的技术。 通过动态优化或调整RF捕获频率和电压振幅来优化离子阱性能。