Ionization mass spectrometry
Rapid determination of aminoglycosides in pharmaceutical preparations by electrospray ionization mass spectrometry
... electrospray-ionization mass spectrometry (ESI-MS) was developed for rapid determination of ...The mass spectral peak intensities for these specific product ions were monitored either by a ...
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Constraining Anthropogenic and Biogenic Emissions using Chemical Ionization Mass Spectrometry
... chemical ionization mass spectrometry en- able online, fast, in situ measurements with no sample ...chemical ionization mass spectrometers are equally capable of quantifying ...
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Extraction and Direct Quantification of Salicylic Acid in Arabidopsis Using Matrix-Assisted Laser Desorption Ionization Mass Spectrometry
... Systemic acquire resistant (SAR) is enhanced resistance created by the plant after infection, in which the plant becomes resistant to a second pathogen infection. This resistant can last for weeks preventing the plant ...
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Molecular Probes in Tandem Electrospray Ionization Mass Spectrometry: Application to Tracing Chemical Changes of Specific Phospholipid Molecular Species
... New ionization and detection techniques in mass spectrometry have been successfully applied for efficient analyses of complex biological ...electrospray ionization mass ...
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A Hyphenation of Stripping Voltammetry with Electrospray Ionization Mass Spectrometry; an Effect of Sodium Perchlorate on Ferrocene Oxidation
... electrospray ionization mass spectrometry (ESI-MS) has been used to assess the types of metal complexes ...the mass to charge ratios (m/z) in conjunction with the characteristic isotope ...
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Fundamental Studies of the Mechanisms and Applications of Field Induced Droplet Ionization Mass Spectrometry and Electrospray Mass Spectrometry
... 2.1 Early photographs of ethanol electrosprays ............................................. 2-4 2.2 Electrospray ionization-mass spectrometry schematic ............................. 2-4 2.3 Cartoon ...
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Constraining the sensitivity of iodide adduct chemical ionization mass spectrometry to multifunctional organic molecules using the collision limit and thermodynamic stability of iodide ion adducts
... total mass load- ings of all molecular components with the submicron or- ganic aerosol mass concentrations measured by an aerosol mass spectrometer (AMS) (DeCarlo et ...to mass concentrations ...
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Performance of a corona ion source for measurement of sulfuric acid by chemical ionization mass spectrometry
... and no NO − 3 ions that were not exposed to sulfuric acid in the sample gas are counted. This behavior for the ion collec- tion can be explained by the special design of the interface between the ion drift region and the ...
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A Mass Spectrometric Study of Kratom Compounds by Direct Infusion Electrospray Ionization Triple Quadrupole Mass Spectrometry
... electrospray ionization mass spectrometry technique, mass spectra and in- formation such as molecular weight and mass fragment were ...the mass spectrum parameters in method ...
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Analyzing A-series gangliosides in neurons following exposure to glutamate
... electrospray ionization mass spectrometry (ESI-MS) technique and immunohistochemistry to evaluate the temporal changes in the expression profiles of various ganglioside species during the course of ...
121
Decomposition And Chemical Analysis Of Cured Epoxy System Using A Microwave Reaction System
... Abstract: - Fully cured epoxy samples of Araldite DLS 772 / 4 4’ DDS with an amine to epoxy ratio of 0.8M were dissolved in 4M nitric acid in a microwave reaction system at a temperature of 120 o C for a total of 75 ...
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Detecting intermediates and products of fast heterogeneous reactions on liquid surfaces via online mass spectrometry
... than mass diffusion into bulk liquids, and may produce novel species at low ...pneumatic ionization mass spectrometry of liquid microjets dosed by reactive gases as a technique meeting such ...
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<p>Investigation Of Small Molecular Substances As Potential Biomarkers For Discrimination Of Gastric Tumor</p>
... with mass spectrometric detection of important pathological molecules having shown prospects in gastric cancer research, providing further insight into the molecular aspects of the disease and helping to identify ...
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Insights into the Isoprene Photochemical Cascade
... chemical ionization mass spectrometry (CIMS) (Crounse et ...soft ionization technique is sensitive to a wide spectrum of oxygenated volatile organic compounds, which offers a unique ...
284
Biotransformation of ginsenosides Rb1, Rg3 and Rh2 in rat gastrointestinal tracts
... with mass spectrometry; MS-MS: Tandem mass spectrometry; LC-MS-MS: High performance liquid chromatography cou- pled with tandem mass spectrometry; ESI: Electric-spray ...
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Improvements in electrospray ionization source design and advances in tandem mass spectrometry
... common mass-to-charge analyzers are listed in Table ...quadrupole mass filters ion kinetic energy is < 50 ...each mass spectrometer are a result of the method by which each is ...(TOF) mass ...
206
Metabolomics Investigation of Glyceollins by On-Line Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry and Fungal Metabolite Identification by Thermal Desorption Analysis Coupled with Gas Chromatography-Mass Spectrometry
... LC separation prior to ESI-MS or ESI-MS/MS analyses offers the theoretical advantage that each analyte species may enter the ESI source of the mass spectrometer free from interferences. Even so, the sequential ...
106
Identification of Rare Pathogenic Bacteria in a Clinical Microbiology Laboratory: Impact of Matrix Assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry
... (c) MALDI-TOF MS identification. Bacterial species were directly identified from one bacterial colony; each colony was covered with 2 ml of matrix solution (saturated ␣ -cyano-4-hydroxycinnamic acid in 50% ace- tonitrile ...
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Implementation of Matrix Assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry in Routine Clinical Laboratories Improves Identification of Coagulase Negative Staphylococci and Reveals the Pathogenic Role of Staphylococcus lugdunensis
... desorption ionization–time of flight mass spectrometry (MALDI-TOF MS) for staphylococcal identification is now considered routine in laboratories compared with the conventional phenotypical methods ...
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Creation of an In House Matrix Assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry Corynebacterineae Database Overcomes Difficulties in Identification of Nocardia farcinica Clinical Isolates
... MALDI-TOF mass spectra were obtained for samples prepared by either the direct transfer method or the extraction method (M1), the latter as recom- mended by the ...better mass spectra and higher score ...
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