mass spectrometry

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Related to mass spectroscopy: NMR spectroscopy

mass spectrometry

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

mass spectrometry

(in chemistry) a technique for the analysis of a substance in which the molecule is subjected to bombardment by high-energy electrons or atoms to cause ionization and fragmentation to give a series of ions in the gas phase that constitutes the fragmention pattern observed by using a mass spectrometer. A molecule can frequently be identified just on the basis of its mass spectrum. See also spectrometry, spectrophotometry.

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.

mass spectrometry (MS) (mas' spek·trˑ·n·mē),

n a method of identifying and analyzing substances by fragmenting substances with a bombardment of high-energy electrons. Each molecule has a specific pattern of fragmentation, and these patterns are recorded on a mass spectrum. This technique is often combined with gas-liquid chromato-graphy.
References in periodicals archive ?
Mass spectroscopy as a clinical analytical method has many unique attributes that no ELISA can achieve at this time.
Introduction to Mass Spectroscopy for Clinical Laboratory Testing
Even so, the number of non-spectroscopists at the meeting was a reassuring indication of the broad appeal of mass spectroscopy.
Instruments are described for gas chromatography, high speed GC, gas chromatography/mass spectrometry, material science GC/MS and mass spectroscopy.
He and his colleagues used liquid chromatography, mass spectroscopy, and the Surface-Enhanced Laser Desorption/lonization (SELDI) ProteinChip system, a technique developed by Ciphergen Biosystems of Fremont, Calif.
A Design of Experiments course using a minimum of mathematics and concentrating on a graphical approach including Six Sigma and Gas Chromatography / Mass Spectroscopy (GC / MS) session as it applied to advanced applications.
Rafferty applied gas chromatography and mass spectroscopy to pure samples of nicotine to identify a "fingerprint" of the substance.
Gas chromatography and mass spectroscopy techniques for the detection of chemical contaminants and residues are discussed alongside applications of HPLC-MS techniques and cell-based bioassays.
Their topics include the quantitation of vitamins using microbiological assays in microtiter formats, determining vitamin C in fortified food products using high-performance liquid chromatography and mass spectroscopy, and analyzing carotenoids.
Pauli and colleagues used two powerful laboratory techniques, nuclear magnetic resonance and mass spectroscopy, to detect progesterone in leaves of the Common Walnut, or English Walnut, tree.
The 30 papers in the flagship edition assess spectroscopic and statistical techniques for information recovery in metabonomics and metabolomics, analyze signaling peptides with mass spectroscopy, and discuss diagnostic tools for examining plasma processing chemistry.
1 * American Society for Mass Spectrometry (ASMS) Conference on Mass Spectroscopy * Seattle, WA * www.