Loading patent…
AssigneeNational Institute of Metrology, China
InventorsShiying Chu, You Jiang, Xiang Fang, Zejian Huang, Xinhua Dai, Yuting An, Di Zhang
Estimating the term…
The present invention relates to the technical field of mass spectra. Disclosed are a novel ion storage system and method based on a quadrupole-ion trap tandem mass spectrometry. The system sequentially comprises a heating capillary, a tube lens, a skimmer, a first ion guide, a second ion guide, a quadrupole mass analyzer, an ion trap mass analyzer, and a detector; a first lens is provided between the first ion guide and the second ion guide; a second lens and a third lens are provided between the second ion guide and the quadrupole mass analyzer, wherein operation modes of the first ion guide and the second ion guide comprise an ion transmission mode and an ion storage mode. Compared with conventional time sequence control methods, more ions are stored during the same time according to the present invention, thereby improving the sensitivity of the instrument.
An ion storage system based on a quadrupole-ion trap tandem mass spectrometry, comprising a heating capillary, a tube lens, a skimmer, a first ion guide, a second ion guide, a quadrupole mass analyzer, an ion trap mass analyzer, and a detector that are sequentially arranged, wherein a first lens disposed between the first ion guide and the second ion guide;
Dependencies are inferred from the claim text.