نتایج جستجو برای: ionization techniques
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Direct extraction and ionization techniques using minute amounts of solvent can be employed for the rapid analysis chemical components in a sample without any preparation steps. This type approach is important mass spectrometry imaging samples with multiple that have different spatial distributions (i.e., biological tissues). To improve resolution such imaging, it necessary to reduce volume del...
Impact-ionization wave triggering of a thyristor enables it to switch significantly higher currents with much faster rise times ( $\text{d}I / \text{d}t$ ) than through conventional triggering; indeed tests on commercial components de...
Ambient ionization mass spectrometry techniques have recently become prevalent in natural product research due to their ability to examine secondary metabolites in situ. These techniques retain invaluable spatial and temporal details that are lost through traditional extraction processes. However, most ambient ionization techniques do not collect mutually supportive data, such as chromatographi...
Of the ceramide monohexosides (CMHs), gluco- and galactosyl-ceramides are the main neutral glycosphingolipids expressed in fungal cells. Their structural determination is greatly dependent on the use of mass spectrometric techniques, including fast atom bombardment-mass spectrometry, electrospray ionization, and energy collision-induced dissociation mass spectrometry. Nuclear magnetic resonance...
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