Bending multi-stage rod ion focusing transmission component

An ion focusing and multi-stage rod technology, which is applied in the field of ion focusing transmission, can solve the problems of insufficient airflow stability, large energy required, and narrowing the outlet diameter, so as to achieve enhanced ion focusing ability, accurate detection results, and reduced outlet size. Effect

CN109994366APending Publication Date: 2019-07-09JIANGSU SKYRAY INSTR
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-07-09

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Abstract

The invention discloses a bending multi-stage rod ion focusing transmission component, which comprises a plurality of bending conductive rods distributed in central symmetry and forming a bending space structure, and a support base. Each bending conductive rod consists of a straight section and a bending section, wherein the straight section is a cylindrical structure or a conical structure, the bending section is a cylindrical structure or a conical structure, the top end face of the straight section is the bottom end face of the bending section, and the top end of the bending section converges to the central axis to form a centrosymmetrical distribution structure around the central axis. The bending space structure has large entrance aperture and small exit aperture. The field strength of the bending space structure can be further increased, and moreover, the size of the exit can be further reduced, and the ion focusing performance can be enhanced. Meanwhile, because the size of theexit is further reduced, the background of detection can be further reduced, and the overall sensitivity of detection can be improved. Because of the existence of the straight sections, an ion beam entering at high speed can be further stabilized for better focusing in next step.
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Description

technical field

[0001] The invention relates to the field of ion focus transmission, in particular to an ion focus transmission component based on a bent multistage rod. Background technique

[0002] A mass spectrometer is a highly sensitive and high-resolution instrument used to detect the chemical composition of a substance. It first converts the sample into gaseous ions, and then separates the ions according to the mass-to-charge ratio (m / z) through an electric field or a magnetic field. , and then measure the intensity of the ions to form a mass spectrum. According to the mass spectrum, the chemical composition of the substance can be obtained qualitatively or quantitatively.

[0003] Analyte ions for analysis by mass spectrometry can be generated by any of a variety of ionization systems. For example, AP-MALDI, APPI, ESI, APCI, and ICP systems can be used in mass spectrometry systems to generate ions. Many of these systems generate ions at or near atmospheric pressu...

Examples

Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions; The embodiments are exemplary and are only used to explain the present invention, but not to be construed as limiting the present invention.

[0022] In describing the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "horizontal", " The orientation or positional relationship indicated by "vertical", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, so as to Specific orientation configurations and o...