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Hasil cari dari kata atau frase: high-resolution mass spectrometer(0.01144 detik)
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Definition: high-resolution mass spectrometer
mass spectrometer \mass spectrometer\ n. (Physics, Chemistry)
An analytical instrument which determines the mass of
molecules of a substance or fragments of its molecules. It
functions by injecting ionized moecules or molecular
gragments into a vacuum chamber subjected to a strong
magnetic field, in which charged particles move in a curved
Note: The mass is determined by observing the path of the
molecule after being charged and accelerated in a
magnetic field. The path of the ionic fragment depends
on the charge, velocity, and mass. Several techniques
of charging and detection are employed. The mass
information is usually used to infer structure or
chemical composition of the substance analyzed.
Variants of mass spectrometer called high-resolution mass spectrometer
permit determination of the mass of
a molecule or molecular fragment with sufficient
precision to unambiguously determine the atomic