mass spectrum


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mass spec·trum

(mas spek'trŭm)
A distribution of charged particles arranged in the order of mass.
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References in periodicals archive ?
To achieve this quantitative capability, we took 2 important measures, one to ensure a homogeneous layer of glycan-matrix cocrystals and the other to scan the glycan-matrix spot to obtain 610 mass spectra, the mean of which was used as the final mass spectrum for each glycan sample.
In order to obtain a well-resolved mass spectrum from externally generated ions the energy spread, (delta) [E.sub.o], of the ions must be limited.
(iii) the graviton mass spectrum at 14 TeV at the LHC for numbers of extra dimensions (n = 2, 4, and 6) (for simplicity and brevity).
The mass spectrum of the same compound showed a very intense molecular ion peak at 482 (Scheme-3).
These methods allow protein samples to be ionized for analysis in a mass spectrometer, producing a pattern called a mass spectrum. These mass spectra--which often number in the thousands for a given sample--can then be used to positively identify proteins or protein digests (strings of peptides or protein fragments produced when the proteins are ionized) through the automatic querying of protein databases.
A comparative study has been introduced for the mass spectrum and decay properties for the D meson with the quark-antiquark potential using hydrogeometric and Gaussian wave function [64].
The 1 H NMR, 13 C-NMR, IR and Mass spectrum (APCI) of the sample (in CDCl 3 and Acetone as solvents respectively) indicated that the compound was pure.