Mass spectrometry device capable of detecting neutral molecular products and ion products and method of operation thereof

Abstract

The invention provides a mass spectrometry device capable of detecting neutral molecular products and ion products and an operating method thereof. The mass spectrometry device that can detect neutral molecular products and ion products includes a set of quadrupole series special linear ion trap mass analyzer, reagent molecule introduction ion trap precise control system, buffer gas flow introduction precise control system, vacuum gauge, multi-level gradient Necessary components of mass spectrometry devices such as vacuum systems, electronically controlled vacuum isolation valve systems, and electron bombardment source mass spectrometry systems. In addition, the present invention also proposes a method for operating the above-mentioned device to carry out molecular ion reaction, accurately measuring ion products of molecular ion reaction, extracting neutral molecules from products, ionizing neutral molecules, and reanalyzing 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...

AI Technical Summary

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.

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