electrospray ionization mass spectrometer
Development of electrospray ionization of biomolecules on a magnetic sector mass spectrometer
... the mass of the target gas ( collision gas ), m; is the mass of the ion, E, is the laboratory-frame energy of the ion ( E; = z x Vacccicran<m )• From the above equation, it can be seen that the ...
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An extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF) for online measurement of atmospheric aerosol particles
... aerosol mass spectrometer (AMS) utilizes a high vaporiza- tion temperature (600 ◦ C) and electron ionization (EI, 70 eV) to remain quantitative but at the cost of extensive thermal decomposition and ...
20
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) ...
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Biotransformation of ginsenosides Rb1, Rg3 and Rh2 in rat gastrointestinal tracts
... tandem mass spectrometer API Q- STAR Pulsar I (Applied Biosystems, ...in electrospray ionization (ESI) was used to analyze ginsenosides and their metabolites in rat feces ...
8
Gas phase characterization of the noncovalent quaternary structure of Cholera toxin and the Cholera toxin B subunit pentamer
... TOF mass spectrometer (LCT, Waters MS Technologies, Manchester, UK) and a triple quadrupole mass spectrometer (Quattro Ultima, Manchester, ...conventional electrospray, operated in ...
10
A Mass Spectrometric Study of Kratom Compounds by Direct Infusion Electrospray Ionization Triple Quadrupole Mass Spectrometry
... Mitragynine (MG) and its major metabolites 7-hydroxymitragynine (7-OH-MG) are two of the ma- jor components of the plant extract Kratom, which is a tree planted in Southeast Asia. Kratom has long been used by ...
8
Detecting intermediates and products of fast heterogeneous reactions on liquid surfaces via online mass spectrometry
... that electrospray ionization mass spectrometers are not all ...the mass spectrometer, along a perpendicular (y-axis) direction, or in a ...
20
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 ...
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Induced in-source fragmentation pattern of certain novel (1Z,2E)-N-(aryl)propanehydrazonoyl chlorides by electrospray mass spectrometry (ESI-MS/MS)
... quadrupole mass spectrometer system (QQQ) typically yields more abundant fragment ions than those produced with resonance excitation in the presence of helium gas in the ion trap (IT) ...low mass ...
8
A Hyphenation of Stripping Voltammetry with Electrospray Ionization Mass Spectrometry; an Effect of Sodium Perchlorate on Ferrocene Oxidation
... ion-trap mass spectrometer (ThermoFinnigan, USA) fitted with an electrospray ionization source operated in positive and negative-ion mode ...The ionization conditions in ESI are ...
12
An electrospray chemical ionization source for real-time measurement of atmospheric organic and inorganic vapors
... Ions are driven across the perpendicular sample flow to a SS capillary tube located on the opposite wall of the IMR by means of a 2–4 kV potential between the evaporation re- gion lens and the capillary tube. The SS ...
17
Concurrent Serotyping and Genotyping of Pneumococci by Use of PCR and Electrospray Ionization Mass Spectrometry
... PCR/electrospray ionization mass spectrometry (ESI-MS) genetic analysis approach using the Ibis T5000 platform involves distributing a DNA extract into wells of a microtiter plate, each of which ...
8
Exploring Fundamental Aspects of Proteomic Measurements: Increasing Mass Measurement Accuracy, Streamlining Absolute Quantification, and Increasing Electrospray Response
... resonance mass spectrometry (FT-ICR MS) offers unparalleled performance in terms of resolving power and mass measurement ...achievable mass measurement accuracy for a given FT-ICR MS system, ...
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Formation of Mercury(II) Glutathione Conjugates Examined Using High Mass Accuracy Mass Spectrometry
... Maternal exposure to Hg(II) during pregnancy has been identified as a potential causal factor in the development of severe neurobehavioral disorders. Children with autism have been identified with lower reduced ...
5
Metabolomic Analysis of Campylobacter jejuni by Direct-Injection Electrospray Ionization Mass Spectrometry
... injection mass spectrometry (DIMS) is a means of rapidly obtaining metabolomic phenotype data in both prokaryotes and ...direct-injection electrospray-ionisation mass spectrometry (ESI-MS), which we ...
17
<p>Investigation Of Small Molecular Substances As Potential Biomarkers For Discrimination Of Gastric Tumor</p>
... MS might be a new alternative to the standard frozen- section histology method. An important advantage of MS analysis is the objective capture of tissue bioinformatics. Many studies using mass spectrometry to ...
8
Prediction of the Fragmentation Pathway of Atorvastatin De Protonated Ion
... advanced mass spec- trometry instruments is continuously increasing in analytical research laborato- ...advanced mass spectrometric systems, along with ra- tional data interpretation, is very helpful for ...
14
Mass spectrometry methods for profiling xenobiotic distribution in biofluids and whole tissues
... multiplex mass spectrometry data from MSI experiments is a complex process, however, this is a precursor to data processing and analysis that is needed to generate images and interrogate the ...
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Diagnosis of Prosthetic Joint Infection by Use of PCR Electrospray Ionization Mass Spectrometry
... 19. Portillo ME, Salvado M, Sorli L, Alier A, Martinez S, Trampuz A, Gomez J, Puig L, Horcajada JP. 2012. Multiplex PCR of sonication fluid accurately differentiates between prosthetic joint infection and aseptic ...
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Enantioselective discrimination of amino acids and hexose monosaccharides in gas phase using electrospray ionization mass spectrometry
... The thesis entitled “ Enantioselective discrimination of amino acids and hexose monosaccharides in gas phase using electrospray ionization mass spectrometry ” is divided into three cha[r] ...
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