A device, method and substance detection device for generating neutral spray

A neutral and hollow technology, applied in the field of mass spectrometry, can solve the problems of inability to directly obtain neutral spray and large sample consumption, and achieve the effect of simple structure, low sample consumption and rapid production

Active Publication Date: 2020-03-10
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a small amount of liquid sample is required and a neutral liquid spray is required, the traditional method consumes a lot of sample, and the spray is charged, so it is impossible to directly obtain a neutral spray

Method used

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  • A device, method and substance detection device for generating neutral spray
  • A device, method and substance detection device for generating neutral spray
  • A device, method and substance detection device for generating neutral spray

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Embodiment Construction

[0023] 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.

[0024] refer to figure 1 , in one embodiment, a device for producing a neutral spray, comprising a first hollow capillary 1, a second hollow capillary 2, a three-way pipeline 6, a positive high voltage power supply, a negative high voltage power supply and an auxiliary gas path, One end of the first hollow capillary 1 and the second hollow capillary 2 is input with a liquid sample, and the other end is respectively placed in the two channels 3 and 4 of the three-way pipeline 6, and the airflow 9 of the auxiliary gas path is input In the two channels 3 and 4, the first hollow capillary 1 and the second hollow capillary 2 are loaded with a positive high-voltage power supply voltage +HV and a negative high-voltage power supply voltage -HV, respectively, f...

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Abstract

An apparatus and method for producing neutral spray and a substance detection apparatus are provided, the apparatus comprises a first hollow capillary tube, second hollow capillary, three-way pipeline, positive high-voltage power supply, negative high-voltage power supply and auxiliary air circuit, one end of the first hollow capillary tube and the second hollow capillary tube are fed with a liquid sample, and the other end is respectively arranged in two channels of the three-way pipeline, the air flow of the auxiliary air path is fed into the two channels, The first hollow capillary tube andthe second hollow capillary tube are respectively loaded with a positive high-voltage power supply voltage and a negative high-voltage power supply voltage for generating a positively charged spray and a negatively charged spray, respectively, converging in a three-way pipe under the action of the gas flow field of the auxiliary gas path, finally generating a neutral spray and outputting the neutral spray from a third channel of the three-way pipe. The first hollow capillary tube and the second hollow capillary tube are respectively loaded with a positive high-voltage power supply voltage anda negative high-voltage power supply voltage. The device and the method for generating neutral spray of the invention can rapidly generate neutral spray, and the sample consumption is low, no complextreatment is needed, and the device is simple in structure and low in cost.

Description

technical field [0001] The invention relates to the field of mass spectrometry, in particular to a device, method and substance detection equipment for generating neutral spray. Background technique [0002] When analytical instruments detect liquid samples, they need to atomize the liquid samples and generate gas-phase ions before testing. Generally, the methods of atomizing liquids include high-voltage electrospray generation, high-pressure atomization, and ultrasonic vibration atomization. However, when a small amount of liquid sample is required and a neutral liquid spray is required, the traditional method consumes a lot of sample, and the spray is charged, so it is impossible to directly obtain a neutral spray. Contents of the invention [0003] The main purpose of the present invention is to overcome the deficiencies of the prior art, and provide a device, method and substance detection equipment for generating neutral spray. [0004] To achieve the above object, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J49/04
CPCH01J49/045
Inventor 余泉张乾王晓浩
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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