from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The measurement of the wavelength of electromagnetic radiation, especially any of several techniques used to analyze the structure of molecules; the measurement of spectra of things other than radiation, such as the masses of molecules and their breakdown products
from the GNU version of the Collaborative International Dictionary of English
- n. Art or process of using a spectrometer, of any type; -- when used alone, it usually refers to the use of a spectrometer using light in the visible, infrared, or ultraviolet region.
from The Century Dictionary and Cyclopedia
- n. The measurement of wave-lengths by means of a spectrometer.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the use of spectroscopes to analyze spectra
Sorry, no etymologies found.
Mass spectrometry is a very widely used method for small and medium-sized molecules.
Mass spectrometry is a very important analytical method used in practically all chemistry laboratories the world over.
Doping and drug tests, foodstuff control and environmental analysis are examples of areas where mass spectrometry is now in routine use.
Levin has been regularly measuring carbon-14 content in air samples from Germany using a version of a Geiger counter, but Tans and other researchers have recently turned to accelerator mass spectrometry, which is faster and easier to scale up.
Mass spectrometry, which is most sensitive in the low molecular weight range, is now a tool used to explore these modified protein molecules and has already revealed a vast number of previously unknown biomarkers.
I find it hard not to raise a quizzical eyebrow when I hear about the initiatives of the avant garde such as champagne house GH Mumm's quest to find the perfect dishes to match with its very good non-vintage champagne, where "gas chromatography, solid phase micro-extraction and mass spectrometry" were all brought to bear on this most urgent of questions.
A critical new facility is our triple-stage tandem mass spectrometry unit which allows for the mass screening of dozens of different inherited metabolic disorders.
The Lab uses cutting-edge techniques of gas chromatography-mass spectrometry and nuclear magnetic resonance imaging for metabolite analysis and clinical diagnoses.
These include metabolite measurements for plasma, urine and cerebrospinal fluid amino acids using ion exchange chromatography, urine organic acids using gas chromatography/mass spectrometry, and total and free carnitine levels and quantitative acylcarnitine profiles using electrospray tandem mass spectrometry.
Like flow cytometry, gas chromatography and gas chromatography-mass spectrometry, the technologies used to detect the presence of the chemicals used in the production of plastic, are well established.