Linear coaxial reflection portable time-of-flight mass spectrum and application thereof

• Main Authors: LIU BING, HOU KEYONG, LIU RUIDONG, DONG FENGSHUO
• Format: Patent
• Language: Chinese; English
• Published: 02.11.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a linear coaxial reflection portable time-of-flight mass spectrum and an application thereof, and belongs to the technical field of mass spectrometry instruments. A focusing-diverging electrode device is designed according to the working principle of the ion lens so that the ion beam is coaxially reflected, the problem that the instrument size is increased due to the ion deflection distance of a vertical introduction structure is solved, and the volume of the mass spectrum can be reduced by more than 1/3 under the condition that the resolution and the sensitivity are ensured. According to the invention, the focusing-diverging electrode is used for controlling the movement track of the ion beam, the radial movement path of the ion beam is reduced, the physical size of the time-of-flight mass spectrometer is reduced fundamentally, the portability of the time-of-flight mass spectrum is improved, and therefore the time-of-flight mass spectrum has a good practical application value. 本发明提供一种直