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Self-suction capillary electrospray ion source

A capillary tube electrospray and capillary tube technology is applied in the field of self-priming capillary tube electrospray ion source to achieve the effects of simplifying structure, reducing sample consumption and reducing volume

Pending Publication Date: 2020-02-21
深圳至秦仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to overcome the deficiencies of the prior art and provide a self-priming capillary electrospray ion source to ensure a good spray effect by relying on the hollow capillary itself and the electric field force without resorting to complex auxiliary structures.

Method used

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  • Self-suction capillary electrospray ion source
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  • Self-suction capillary electrospray ion source

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Embodiment Construction

[0025] Embodiments of the present invention will be described in detail below. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0026] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be used for both fixing and circuit communication.

[0027] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings...

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Abstract

The invention discloses a self-suction capillary electrospray ion source, which comprises a sample injection structure, a high-voltage electrode and a high-voltage power supply. The sample injection structure comprises a liquid storage container and a hollow capillary; the hollow capillary comprises a main body and a top end; an inlet of the main body is a sampling end, which is inserted into a sample solution in the liquid storage container; the top end of the hollow capillary serves as a spraying end; the high-voltage power supply applies high-voltage power to the sample solution through a high-voltage electrode; the sample solution rises to the top end of the hollow capillary from the sampling end of the hollow capillary under the capillary action and electric field force action and generates spray; and the inner diameter of the main body of the hollow capillary is 50-500 microns, the inner diameter of the spray end is 20-200 microns, and the inner diameter of the top end of the capillary tube is not greater than the inner diameter of the main body. The electrospray ion source can generate a good spray effect through the hollow capillary, and liquid drops generated by spraying are fine and easy to dissolve; adoption of a complex sample injection structure and a matched device for guaranteeing the spray effect is avoided; and the electrospray ion source is simple in structureand convenient to manufacture.

Description

technical field [0001] The invention relates to mass spectrometer ion source equipment, in particular to a self-suction capillary electrospray ion source. Background technique [0002] Mass spectrometer is one of the most sophisticated modern analytical instruments and represents the future development direction of analytical instruments. The ion source is the most basic functional component in the mass spectrometer system, which determines the analytical performance and application range of the mass spectrometer to a certain extent. Electrospray ionization (Electrospray Ionization, ESI) was first proposed by the Dole group and applied to mass spectrometry as an ionization technology. In the late 1980s, Nobel Prize winner John B. Fenn and others first applied it Since then, this technology has greatly promoted the development of the field of mass spectrometry analysis of macromolecules. Today, ESI has become the most widely used ion source in mass spectrometry, and its app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/16
CPCH01J49/165H01J49/167
Inventor 郭成安刁兆银谭祖正
Owner 深圳至秦仪器有限公司
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