0 a piece of equipment used by scientists to separate ions into groups to measure and compare their mass and electrical charge -- 质谱仪
In the early 1960s, he coupled a low-field ion mobility drift cell to a sector mass spectrometer.
Computer simulation of ionization and fragmentation processes occurring in mass spectrometer is the primary tool for assigning structure or peptide sequence to a molecule.
The data collected from the mass spectrometer was delivered to the individual rooms for the anesthesiologist to use.
A linear series of three quadrupoles is known as a triple quadrupole mass spectrometer.
In a quadrupole mass spectrometer the quadrupole is the component of the instrument responsible for filtering sample ions, based on their mass-to-charge ratio ("m/z").
The ions formed are directed to the mass spectrometer inlet by both the gas flow and a slight vacuum in the spectrometer inlet.
In a mass spectrometer, a vaporized sample is bombarded with high-energy electrons, which cause the sample components to become positively charged ions.
These salts are not volatile, so this technique is less useful with a mass spectrometer as the detector.
