M/Z range: 2~2024amu

Resolution: ≥2.5M

Mass stability: PEG1000, 1004.622±0.05Da, averagestandard deviation ≤0.05Da

Sensitivity:

1) Positive ions: ESI, 10pg reserpine, reactionmonitoring SRM signal to noise ratio ≥ 20: 1 (peak to peak), 300: 1 (RMS)

2) Negative ion: ESI, 10ng raffinose, reaction monitoringSRM signal to noise ratio ≥100:1 (peak to peak)

3) APCI: 10pg reserpine, selected ion SIR signal to noiseratio ≥ 10: 1 (peak topeak)

Quality stability: 0.2Da/24 hours

Positive and negative ion collection switching rate:<100ms

Maximum scanning speed: 5000amu/sec

Mass spectrometry injection method: automatic, manual,syringe pump

Mass spectrometry acquisition method: centroid map,contour map, MCA map MS accumulation)

Ion source and injection system:

1) The atmospheric pressure ion source is a bi-orthogonaldesign with a block valve between the ion source and the mass spectrometer

2) Atmospheric pressure ion source includes electrospraysource (ESI) and atmospheric pressure chemical source (ApCI)

3) Optional electrospray source (ESI), atmosphericpressure chemical source (ApCI), composite ionization source ESCI source

Vacuum system: differential soaking vacuum system withmolecular pump (Edwards) and pre-stage mechanical pump (Edwards), withautomatic protection against power failure.

Photomultiplier detector: The service life is 10 years.The photomultiplier is sealed in vacuum glass to meet the reliability andrepeatability of long-term quantitative analysis of large quantities ofsamples.