The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2023
Filed:
May. 17, 2021
Shimadzu Corporation, Kyoto, JP;
Yiming Lin, Shanghai, CN;
Wenjian Sun, Shanghai, CN;
SHIMADZU CORPORATION, Kyoto, JP;
Abstract
The invention relates to a mass spectrometer, a mass spectrometry method and a detection system. The mass spectrometer includes a vacuum chamber having a working pressure being 0.1 Pa≤P≤10 Pa; a linear ion trap, arranged in the vacuum chamber, wherein a field radius r of the linear ion trap is r≤5 mm; and a power supply, configured to provide a radio-frequency voltage for the linear ion trap, a frequency f of the radio-frequency voltage being 2 MHz≤f≤10 MHz. Because a vacuum level is relatively low, this vacuum condition may be realized by selecting a roughing pump for evacuating; and compared with a combined pump unit which is generally selected by a traditional mass spectrometer using the linear ion trap and is composed of a turbo molecular pump and a roughing pump, the roughing pump has a lower pumping speed, smaller size and lower manufacturing cost.