mass fragment

mass fragment

Etymology: L, massa, lump, frangere, to shatter
(in mass spectrometry) a degraded part of a molecule containing one or more charges.
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This scan function allowed for the collection of a full-scan accurate mass fragment with precursor ion information.
The results of algebraic reconstruction of the velocity field of seismic wave propagation and attenuation of the fragment of the coal seam 503 is the form of the maps of the baseline velocity distribution (m / s) of the longitudinal seismic wave in the rock mass fragment, for a given situation of the panel 1 and 2 extraction.
The energy which is accumulated in this rock mass fragment is variable and depends on the changing mining condition.
swg] for large-size rock mass fragments disturbed by mining operation was developed.
Hemilaminectomy was performed between C2-C3, and mass fragments, which occupied part of the spinal canal, were removed and submitted for histopathological evaluation.
In this mode, volatiles are separated by the amount of time they take to travel through a narrow tube (gas chromatography -- certain molecules interact with the sides of the tube more readily and thus travel more slowly) and then identified by their signature mass fragments in the mass spectrometer.
We now wish to source a Secondary Ion Mass Analyser capable of being operated with this instrument to provide spectra of small mass fragments from very small volumes.
In contrast, the spectrum from inside the crater (Figure 4, top) exhibits numerous peaks that can be identified as mass fragments from polydimethylsiloxane (PDMS).
The area of analysis is already defined, and the ESCA data give a head start for interpreting the key mass fragments from the SSIMS data.
With remarkable MS/MS sensitivity even at low mass fragments, the maXis impact rivals traditional triple-quad instruments in trace analysis quantitation, while offering all the flexibility and information content of precise-mass assignment and ultra-high resolution at UHPLC speed simultaneously.
All drugs known to interfere with the current HPLC method, including several biogenic amines and cardiac medications, were derivatized and injected to determine retention times and prominent mass fragments.
b) Major mass fragments found with MSTFA and MBHFBA double derivatization.