Electrospray tandem mass spectrometry
Rapid detection of dimethyl yellow dye in curry by liquid chromatography electrospray tandem mass spectrometry
... Chromatography-Electrospray-Tandem Mass Spectrometry Fernando TaTeo 1 , Monica BoNoNi 1 and Franco GalloNe 2 1 analytical Research laboratories Food and environment, ...
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The Application of Electrospray Tandem Mass Spectrometry for de novo Sequencing of Reduced Insulins
... the electrospray tandem MS/MS based de novo sequencing method was developed and validated by analyzing two insu- lin products with similar primary structures, namely recombinant human in- sulin and insulin ...
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Structural differentiation of uronosyl substitution patterns in acidic heteroxylans by electrospray tandem mass spectrometry
... heteroxylans. Mass spectrometry (MS), particularly tandem mass spectro- metry using either matrix assisted laser desorption ionization (MALDI) or electrospray (ESI), was shown to be ...
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Development of Novel Liquid Chromatography-Electrospray Tandem Mass Spectrometry Approaches for the Structural Characterization of Brevetoxins Including in vitro Metabolites
... brevetoxin-3 in shellfish, a likely metabolite of brevetoxin-2. Plakas et al. [24, 25] exposed Eastern oysters (Crassostrea virginica) to brevetoxin-2, where the toxin was extensively metabolized. LC-MS fractions ...
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Electrospray tandem mass spectrometric analysis of a dimeric conjugate, salvialeriafone and related compounds
... Background: Electrospray tandem mass spectrometry approach is widely used for the rapid characterization of natural ...ion electrospray ionization quadropole time-of-flight mass ...
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Improvements in electrospray ionization source design and advances in tandem mass spectrometry
... a mass-to-charge dependence on the efficiency of ion extraction from the collision hexapole and ion flight times to the ICR ...Smaller mass-to-charge ions exert a greater space charge effect on larger ...
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The application of electrospray ionisation and tandem mass spectrometry to the analysis of polymer additives
... with higher molecular weight require a greater input of internal energy and, therefore, only start to fragment at high values of cone potential. Furthermore, peaks are observed at 32 and 72 Da greater than that of many ...
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Oxovanadium complexes have played active. Electrospray Mass Spectrometry and Tandem Mass Spectrometry of Bimetallic Oxovanadium. complexes.
... Soc Mass Spectrom 2008, 19, 1247–1254) © 2008 American Society for Mass Spectrometry O xovanadium complexes have played active roles in the fields of pharmaceutical research and organic ...
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Gas-phase dissociation of oligoribonucleotides and their analogs studied by electrospray ionization tandem mass spectrometry
... In contrast to the dissociation of DNA, dissociation of RNA was found to be independent of nucleobase loss and it is characterized by cleavage of the 5 =-POO bond, resulting in the formation of c- and their complementary ...
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Wax ester profiling of seed oil by nano-electrospray ionization tandem mass spectrometry
... Applying a weighted least squares linear regression with a weighting factor of 1/× 2 the standard curves in general reveal linear correlation of the intensity ratio of the analyte to the internal calibrator as a function ...
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Structure Elucidation of Anthraquinone Dyes by Using Electrospray Quadrupole - Time-of-Flight Tandem Mass Spectrometry
... resolving power.(Figure 2 shows effects and reasons) 16 Figure 2 Effects of initial time, space, and kinetic energy distributions on mass resolution in TOF-MS. 16 To improve the resolving power of TOF, Mamyrin ...
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Quantitative lipidomic analysis of mouse lung during postnatal development by electrospray ionization tandem mass spectrometry
... Furthermore, mass spectrometry imaging of adult mouse lungs showed that these long chain polyunsaturated lipids are highly abundant at the epithelial lining of airways [ 72 ...
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METHOD DEVELOPMENT AND VALIDATION FOR THE ESTIMATION OF AMPRENAVIR IN HUMAN PLASMA BY LIQUID CHROMATOGRAPHY–ELECTROSPRAY IONIZATION–TANDEM MASS SPECTROMETRY
... Objective: The main aim of the present study was to develop a sensitive liquid chromatography–electrospray ionization–tandem mass spectrometric technique for the quantitation of amprenavir in human ...
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Expanded Newborn Screening for Inborn Errors of Metabolism by Electrospray Ionization-Tandem Mass Spectrometry: Results, Outcome, and Implications
... CONCLUSIONS Electrospray ionization-MS/MS is increasingly be- ing advocated for expanded newborn screening pro- grams because it is targeted toward a broad range of amino acidemias, FAO disorders, and organic ...
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Molecular Probes in Tandem Electrospray Ionization Mass Spectrometry: Application to Tracing Chemical Changes of Specific Phospholipid Molecular Species
... in mass spectrometry have been successfully applied for efficient analyses of complex biological ...with tandem electrospray ionization mass spectrometry has been examined using ...
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RAPID QUANTIFICATION OF IRINOTECAN IN RAT PLASMA BY LIQUID CHROMATOGRAPHY-ELECTROSPRAY IONIZATION TANDEM MASS SPECTROMETRY-APPLICATION TO PRECLINICAL PHARMACOKINETICS
... Introduction The antineoplastic agent irinotecan hydrochloride (7-ethyl-10-[4-(1-piperidino)-1- piperidino]-carbonyloxy-camptothecin (CPT-11) is a semisynthetic derivative of the natural product camptothecin 1,2 . This ...
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Rapid and sensitive hormonal profiling of complex plant samples by liquid chromatography coupled to electrospray ionization tandem mass spectrometry
... to electrospray ionization tandem spectrometry (UPLC/ESI-MS/MS) to analyze quantitatively the major hormones found in plant tissues within six minutes, including auxins, cytokinins, gibberellins, ...
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Rapid and sensitive hormonal profiling of complex plant samples by liquid chromatography coupled to electrospray ionization tandem mass spectrometry
... pension of the residues have been reported for plant hormone extraction [14,20] which may increase the risk of hormone loss. However, the application of internal standards can provide corrections for hormone loss dur- ...
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A Sensitive method for Simultaneous quantitation of Estradiol and Estrone in human plasma by Liquid chromatography-tandem mass spectrometry with electrospray ionization
... Amlodipine was used as the internal standard. The chromatographic separation was performed with a mobile phase comprising formic acid and methanol in gradient mode. The mass transitions of m/z 506.13/170.66 for 3- ...
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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
... the mass spectrometer free from ...of tandem mass spectrometry can enable direct mixture analyses in the absence of chromatographic ...
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