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Ion separation device

An ion separation and ion technology, which is applied in the field of ion detection, can solve the problems of high working voltage requirements, high FAIMS power, and difficulty in mass production, and achieves the effect of simplifying complexity, reducing complexity and simple structure.

Active Publication Date: 2014-09-17
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] But on the other hand, FAIMS has the disadvantages of high power, high working voltage requirements, and difficulty in mass production. More importantly, FAIMS has theories about the relationship between the average cross-sectional area of ​​collision, molecular structure, ion behavior, etc., and the strong radio frequency electric field. The problem has not been fully explored, and further research is needed

Method used

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Embodiment Construction

[0023] The preferred embodiments of the invention will be further described in detail below.

[0024] Such as figure 1 As shown, an ion separation device of an embodiment includes an insulating curved tube 1, an ionization region 2, an electrode 11, an ion separation region 12, an insulating curved tube inlet 13, an insulating curved tube outlet 14, a vacuum pump 3, a capillary structure 21, a sample 22 and voltage divider resistor 15.

[0025] The inner wall of the insulating curved tube 1 is provided with a plurality of electrodes 11, each electrode 11 has an electrode ion channel 111 for ions to pass through, and the insulating curved tube inlet 13 forms an ion inlet for allowing ions to enter the insulating curved tube 13. The outlet 14 of the insulating curved tube forms an ion outlet for some ions that pass through a plurality of electrode ion channels 111 and pass through the insulating curved tube 13 to leave. The entrance 13 of the insulating curved tube is provided ...

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Abstract

The invention discloses an ion separation device which comprises an ion separation zone and an insulating elbow. Multiple electrodes are arranged on the inner wall of the insulating elbow. Each electrode is provided with an electrode ion channel allowing ions to pass through. The ion separation zone is formed in the insulating elbow. An ion inlet is formed in an inlet of the insulating elbow. An ion outlet is formed in an outlet of the insulating elbow. The air pressure in the insulating elbow is kept below a set air pressure threshold value, wherein the set air pressure threshold value does not exceed the standard atmospheric pressure. From the inlet to the outlet of the insulating elbow, voltage exerted on the electrodes is changed monotonously. The ion separation device is simple in structure, non-target ions impact the electrodes so as to be attached to the electrodes, target ions are separated from the ion outlet, and therefore complexity for ion detection is simplified.

Description

【Technical field】 [0001] The invention relates to the field of ion detection, in particular to an ion separation device. 【Background technique】 [0002] Analytical instruments are indispensable and powerful tools for people in modern society to obtain material composition, structure and state information, understand and explore natural laws, and are an important part of modern scientific instruments. With the rampant terrorism, the detection of drugs and explosives has become very important. On the other hand, with the improvement of living standards, food safety issues have also received more and more attention. In the past, the commonly used instruments were mass spectrometers, chromatographs, etc., but the current mass spectrometers and other instruments are easy to introduce some impurity ions when ionizing and detecting substances, which brings some negative factors to ion analysis and detection. [0003] In the 1980s, a new instrument for detecting the composition of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/06
Inventor 倪凯欧光礼郭静然余泉钱翔王晓浩
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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