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Mass spectrum apparatus capable of detecting neutral molecule products and ion products, and operating method thereof

A technology of neutral molecules and ions, applied in measuring devices, mass spectrometers, analytical materials, etc., can solve problems such as the difficulty of increasing accuracy, weak ionization signals, and invisible effective signals, and achieve enhanced efficiency and high ionization Efficiency, the effect of qualitative and semi-quantitative detection

Active Publication Date: 2016-03-09
NAT INST OF METROLOGY CHINA
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Problems solved by technology

[0012] In summary, in the online molecular ion reaction mass spectrometry system, the ionization signal of the product neutral molecules is so weak that the effective signal is almost invisible
Moreover, the entire operation sequence and logic are relatively complex, and there are reagent molecules and background molecules in the reaction mass spectrometry system, which increase the difficulty of the qualitative and quantitative detection of neutral molecules in the reaction product.

Method used

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  • Mass spectrum apparatus capable of detecting neutral molecule products and ion products, and operating method thereof
  • Mass spectrum apparatus capable of detecting neutral molecule products and ion products, and operating method thereof
  • Mass spectrum apparatus capable of detecting neutral molecule products and ion products, and operating method thereof

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Embodiment Construction

[0063] Attached below Figure 1-3 The present invention will be specifically described.

[0064] A mass spectrometer capable of detecting neutral and ion products, comprising:

[0065] The ion source 101 is set in standard atmospheric pressure to generate an ion beam;

[0066] The multi-stage gradient vacuum system 110 includes a plurality of vacuum intervals connected sequentially through through holes 114, and through holes 114 are also opened at the position facing the ion source 101;

[0067] The ion introduction pipeline 111 is arranged in the primary vacuum zone, facing the through hole 114 connected to each vacuum zone, and is used to transmit the ion beam generated by the ion source 101;

[0068] The ion guide pipeline 112 is arranged in the vacuum intervals of all levels after the primary vacuum interval, facing the through holes 114 connected to each vacuum interval, and communicated with the ion introduction pipeline 111, for transmitting the ion beam generated by...

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Abstract

The invention brings forward a mass spectrum apparatus capable of detecting neutral molecule products and ion products, and an operating method thereof. The mass spectrum apparatus comprises a quandrupole rod series-connection special linear ion trap mass analyzer, a reagent molecule introduction ion trap accurate control system, a cushion gas flow introduction accurate control system, a vacuum gauge, a multistage gradient vacuum system, an electric control vacuum isolating valve system, an electron bombardment source mass spectrum system, and other necessary parts. The invention also provides a method of operating the above apparatus to carry out a molecule and ion reaction, accurately measure ion products of a molecule and ion reaction, extracting neutral molecules from products, ionize neutral molecules and then analyze ions.

Description

technical field [0001] The invention relates to a system for rapid and accurate on-line identification of products of molecular / ion efficient reaction in a gaseous environment, in particular to a mass spectrometry device system for measuring and measuring reaction product ions and also testing reaction product neutral molecules. Background technique [0002] The conventional chemical reaction is the reaction between chemical reagents in the laboratory, which is usually called "wet experiment", which has problems such as large sample volume and difficulty in timely detection and identification of process products. Molecular ion reactions in a gaseous environment can effectively solve these problems, not only using a small amount of reagents, but also quickly and in time to detect intermediate products. However, molecular ion reactions in a gaseous environment require a set of equipment to realize, at least molecular reagents need to be loaded into the system , ion source syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/26G01N27/62
CPCH01J49/26G01N27/62
Inventor 熊行创方向江游龚晓云黄泽建刘梅英
Owner NAT INST OF METROLOGY CHINA
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