Ambient Ionization mass spectrometry
Ambient Ionization and Miniature Mass Spectrometry Systems for Disease Diagnosis and Therapeutic Monitoring
... of ambient ionization mass spectrometry emerged [5] with an aim to remove the sample preparation and chromatographic separation from the MS-based ...Using ambient ionization, ...
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Analysis of Cocaine and Crack Cocaine via Thin Layer Chromatography Coupled to Easy Ambient Sonic Spray Ionization Mass Spectrometry
... Cocaine and crack cocaine are usually seized with a great diversity of adulterants, such as benzocaine, lido- caine, caffeine, and procaine. The forensic identification of cocaine in these drug mixtures is normally per- ...
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Constraining Anthropogenic and Biogenic Emissions using Chemical Ionization Mass Spectrometry
... involve ambient sample collection, derivatization with a chemical agent, separation of compounds, and detection by HPLC, GC-MS, or GC-FID (Lee et ...chemical ionization mass spectrometry en- ...
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The sensitivity of benzene cluster cation chemical ionization mass spectrometry to select biogenic terpenes
... of these three peaks decreases with increasing SH (Fig. 10), suggesting that water clusters compete or suppress the charge transfer to the contributing ions. The humidity-dependent sensitivity of all the studied MTs, ...
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Gas-phase pesticide measurement using iodide ionization time-of-flight mass spectrometry
... For detection of pesticides in the atmosphere, air sam- ples are typically collected on solid-phase micro-extraction (SPME) fibers or other adsorbent materials with sampling times of 2 h–1 week (Bedos et al., 2006; ...
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Direct analysis of volatile components from intact jujube by carbon fiber ionization mass spectrometry
... new ambient ionization technique called CFI, which used a carbon fiber bundle as the ion source to assist in the ionization of small organ- ics ...the mass spectrometer, in which an extra high ...
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Tea Identification through Surface Assisted Laser Desorption/Ionization Mass Spectrometry
... at ambient temperature (25˚C), leading to instantaneous formation of white ...to ambient temperature and then filtered through a filter paper to remove ...
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Elemental analysis of aerosol organic nitrates with electron ionization high-resolution mass spectrometry
... original mass in the EI region of the ...upon ionization, the size and iden- tity of the fragment which retains the charge and is detected has no bearing on the size of the ...the mass of the ...
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Analyzing Brazilian Driver’s License Authenticity by Easy Ambient Sonic Spray Ionization Mass Spectrometry
... of ionization techniques for ambient mass spectrometry [15]-[18] has been ...desorption, ionization, and mass spectrometry characterization of volatile and nonvolatile ...
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Advancements in Infrared Matrix Assisted Laser Desorption Electrospray Ionization Mass Spectrometry Instrumentation and Methodology.
... 27 The accumulation curves of six lipid ions from IR-MALDESI analysis of mouse liver is shown in Figure 2.9. Of particular note is that the second laser pulse in the sequence, at t = 50 ms, provides no significant signal ...
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A Three-Dimensional Microfluidic Device Coupled with Paper Spray Ionization Mass Spectrometry for the Detection of Triazines.
... Electrospray Ionization (MALDESI) also reduced the sample preparation times and increased sample ...in ambient air of the previously mentioned methods has its advantages, there are also a few ...another ...
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A Tool To Visualize and Evaluate Data Obtained by Liquid Chromatography-Electrospray Ionization-Mass Spectrometry
... highlighted with color boxes. The color varies across a gradient from green to red and is determined by the corresponding PeptideProphet probability. Except for their color, these boxes are plotted in the same fashion as ...
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Authentication of processed meat products by peptidomic analysis using rapid ambient mass spectrometry
... Peptide markers for both species and protein identified in processed meat products; all presented peptides were ranked first in the list of matched peptides of MASCOT peptide view result[r] ...
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Performance of a corona ion source for measurement of sulfuric acid by chemical ionization mass spectrometry
... the sample gas. This is achieved by applying electrostatic voltages to different sections of the ion source, the sample tube and the ion drift tube, respectively, thereby focusing the primary ions towards the centerline ...
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Identification of Molds by Matrix Assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry
... TOF mass spectrum profiles for Paecilomyces, Purpureocillium, Rasamsonia, and Hamig- era species, none of the 77 clinical isolates identified morphologically as being ...
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Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging of ZP1609 and Amyloid Beta
... of proteins. Alternatively, chemical crosslinking, fluorescence resonance energy transfer (FRET), and protein arrays are often used for studying protein interactions [25-31]. Proteomic research is an exponentially ...
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Chemical Fingerprinting of Counterfeits of Viagra and Cialis Tablets and Analogues via Electrospray Ionization Mass Spectrometry
... LC-MS/MS mass spectrometer from MDS Sciex/Applied Biosystems (Foster City, CA, USA) coupled to a Alliance 2695 Separations Module LC (Waters, Milford Massachusetts, USA) was ...peak. Mass spectra were ...
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A Hyphenation of Stripping Voltammetry with Electrospray Ionization Mass Spectrometry; an Effect of Sodium Perchlorate on Ferrocene Oxidation
... The first system based on hyphenation of EC and MS, which was utilized for determination of species generated during electrochemical reaction, was called DEMS (differential electrochemical mass spectrometry ...
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Enhanced Diagnostic Yields of Bacteremia and Candidemia in Blood Specimens by PCR Electrospray Ionization Mass Spectrometry
... electrospray ionization mass spectrometry (PCR-ESI-MS) to directly identify microorganisms in whole-blood specimens collected from pa- tients with clinically suspected septicemia at the Vanderbilt ...
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Carbapenemase Activity Detection by Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry
... desorption ionization–time of flight (MALDI-TOF) mass spectrometry is used for the determination of molecular weights of different chemical ...MALDI-TOF mass spectrometry to detect a ...
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