نتایج جستجو برای: maldi mass spectrometry
تعداد نتایج: 488232 فیلتر نتایج به سال:
18 An ammonium chloride erythrocytes-lysing procedure was used to prepare a bacterial pellet 19 from positive blood cultures for direct MALDI-TOF mass spectrometry analysis. 20 Identification was obtained for 78.7% of pellets. Moreover, 99% of MALDI-TOF 21 identifications were congruent at species level when considering valid scores. This fast and 22 accurate method is promising. 23
T detection and identification of molecules within complex biological matrixes (i.e., plant tissue) requires homogenization, filtration, and liquid extraction of the sample to prepare for analysis using techniques such as gas chromatography/mass spectrometry (GC/MS), liquid chromatography-mass spectrometry (LC-MS), capillary electrophoresis-mass spectrometry (CE-MS), and LC-NMR. Direct analysis...
MALDI imaging mass spectrometry is an analytical technique delivering information about the spatial distribution of molecules. MALDI-imaging is beneficial as a discovery tool, revealing molecules localized specifically to a particular feature or structure of the sample. The search for such molecules can be approached by identifying a template molecular ion with a distribution specific to the ar...
Sensitivity and detection limit enhancements are obtained for peptides by performing high repetition rate (150 Hz) matrix-assisted laser desorption/ionization (MALDI) coupled with ion mobility-time-of-flight mass spectrometry. Absolute limits of detection (3sigma) for model peptides are on the order of 0.1 fmol of peptide deposited and represent a factor of 40-60 improvement over data obtained ...
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