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The development of the mass spectrometer allowed the exact mass of atoms to be measured.
Subsequently, one or more chromatographic separations are applied to resolve resulting peptides, which are then ionized and analyzed in a mass spectrometer.
The mass spectrometer was a new tool for examining the structures of small botanical molecules.
This will produce a set of peptides that can be analysed using a mass spectrometer.
This method employed devices known as calutrons, a hybrid of the standard laboratory mass spectrometer and cyclotron.
It was speculations about isotopy that directly gave rise to the building of a mass spectrometer capable of separating the isotopes of the chemical elements.
The mass spectrometer does this by breaking each molecule into ionized fragments and detecting these fragments using their mass-to-charge ratio.
These salts are not volatile, so this technique is less useful with a mass spectrometer as the detector.
In a mass spectrometer, a vaporized sample is bombarded with high-energy electrons, which cause the sample components to become positively charged ions.
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 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").
A linear series of three quadrupoles is known as a triple quadrupole mass spectrometer.
The data collected from the mass spectrometer was delivered to the individual rooms for the anesthesiologist to use.
Computer simulation of ionization and fragmentation processes occurring in mass spectrometer is the primary tool for assigning structure or peptide sequence to a molecule.
In the early 1960s, he coupled a low-field ion mobility drift cell to a sector mass spectrometer.
