公开(公告)号：US11929246B2

公开(公告)日：2024-03-12

申请号：US17427386

申请日：2020-01-28

Applicant: DH TECHNOLOGIES DEVELOPMENT PTE. LTD.

Inventor： Eric T Dziekonski

IPC: H01J49/42 ,  H01J49/38

CPC classification number: H01J49/422 ,  H01J49/38

Abstract: In one aspect, a mass analyzer is disclosed, which comprises a quadrupole having an input end for receiving ions and an output end through which ions can exit the quadrupole, said quadrupole having a plurality of rods to at least some of which a drive RF signal and an excitation signal can be applied. A fixed phase relationship is maintained between the drive RF signal and the excitation signal, thereby enhancing the signal-to-noise ratio of the mass detection signal.

公开(公告)号：US20220102133A1

公开(公告)日：2022-03-31

申请号：US17427386

申请日：2020-01-28

Applicant: DH TECHNOLOGIES DEVELOPMENT PTE. LTD.

Inventor： Eric T Dziekonski

IPC: H01J49/42 ,  H01J49/38

Abstract: In one aspect, a mass analyzer is disclosed, which comprises a quadrupole having an input end for receiving ions and an output end through which ions can exit the quadrupole, said quadrupole having a plurality of rods to at least some of which a drive RF signal and an excitation signal can be applied. A fixed phase relationship is maintained between the drive RF signal and the excitation signal, thereby enhancing the signal-to-noise ratio of the mass detection signal.