mass spectrometry

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Related to Mass analyzer: quadrupole mass filter

mass spectrometry

(mas spek-trom'ĕ-trē),
The analysis obtained using a mass spectrograph.

mass spectrometry

A method for identifying molecules based on the detection of the mass-to-charge ratio of ions generated from the molecule by vaporisation and electron bombardment. Deflection of the ions through a magnetic field results in a characteristic pattern which is used to define the molecule of interest.
References in periodicals archive ?
GC and RP-UHPLC coupled to a high resolution QTOF mass analyzer are powerful analytical platforms for a quick structure determination of isoquinoline alkaloids, previously to the application of other spectroscopic tools.
T-Wave mode utilizes a stacked-ring ion guide design that allows it to produce a traveling wave that accelerates ions into the second quadrupole mass analyzer. This has the effect of significantly improving the fast scanning abilities of a tandem MS.
(3) Nonstandard abbreviations: MCAD, medium-chain acyl-CoA dehydrogenase; MS-MS, tandem mass spectrometry; MS1, first mass analyzer region; MS2, final mass analyzer region.
To get their mass spectrum, these components may go through a quadrupole TOF mass analyzer. The peaks appearing in the TOF spectrum form a fingerprint characteristic of the original macromolecule.
These high-powered magnets are required in FF-MS in order to induce ions to oscillate within the mass analyzer, where their molecular weights can be measured.
An inductively coupled plasma ionization mass spectrometer (ICP-MS)is used, employing a TOF mass analyzer. The instrument features analyte ions that are orthogonally extracted from the primary ion beam for time-off-light mass analysis.
The Electrodynamic Ion Funnel is the first product that focuses large ion currents in gases, transmitting the ions to the mass analyzer with nearly 100% efficiency.
By filtering photons and neutrals away from the mass analyzer, background signal is greatly reduced.
The high capabilities of a quadrupole mass analyzer are required for most process monitoring applications, says MKS's McAllister.
In 2005, it launched the LTQ Orbitrap Hybrid MS (see IBO 6/15/05), which introduced a new mass analyzer to the marketplace to compete with Q-TOF MS.
The mass spectrometer is a triple filter quadrupole mass analyzer with a 0 - 300 AMU range.
It combines the functions of an ion source and mass analyzer in a simple, three-electrode assembly where the ions are "trapped," or stored, as they are produced.