HIGH RESOLUTION TIME-OF-FLIGHT MASS SPECTROMETER AND METHODS OF PRODUCING THE SAME

    公开(公告)号:US20240420944A1

    公开(公告)日:2024-12-19

    申请号:US18701598

    申请日:2022-10-12

    Abstract: Provided herein are designs of a linear time-of-flight (TOF) mass spectrometer that achieves a high mass resolving power (MRP) to ions independently having a mass-to-charge (m/z) ratio between 1,000 and 100,000. The TOF mass spectrometer comprises an ion source, a flight tube, and an ion detector, in which the ion source comprises a sample plate, an extraction plate disposed at a first distance (d1) away from the sample plate; an end plate disposed at a second distance (d2) away from the extraction plate; a first electric field (e1) present between the sample plate and the extraction plate; and a second electric field (e2) present between the extraction plate and the end plate; the flight tube having a length of d3 is disposed downstream and adjacent to the ion source; and the ion detector is disposed downstream and adjacent to the flight tube; and the linear TOF mass spectrometer satisfies the set of criteria I or II, in which the set of criteria I includes (1) d1/L

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