Electrospray ionization
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 ...tandem electrospray ionization mass spectrometry has been ...
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Detection and Identification of Ehrlichia Species in Blood by Use of PCR and Electrospray Ionization Mass Spectrometry
... Rapid detection and identification of Ehrlichia species improves clinical outcome for patients suspected of ehrlichiosis. We describe an assay that employs multilocus PCR and electrospray ionization mass ...
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A Mass Spectrometric Study of Kratom Compounds by Direct Infusion Electrospray Ionization Triple Quadrupole Mass Spectrometry
... In this study, a specific detection and identification method by direct infusion electrospray ionization mass spec- trometry has been developed for analysis of mitragynine and 7-hydroxymitragynine. The ...
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A Hyphenation of Stripping Voltammetry with Electrospray Ionization Mass Spectrometry; an Effect of Sodium Perchlorate on Ferrocene Oxidation
... an electrospray ionization source operated in positive and negative-ion mode ...The ionization conditions in ESI are critically influenced by the settings of the capillary voltage and the tube lens ...
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Development and Validation of Extraction Method for the Determination of UC781 in Cervicovaginal Fluid
... Liquid chromatography plays the important and critical role in the field of clinical pharmacology of evaluating drugs in biological matrices. Studying antiretroviral drugs in the female genital tract has important ...
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Characterization of the anti Staphylococcus aureus fraction from Penthorum chinense Pursh stems
... with electrospray ionization mass spectrometry (ESI-MS) instrument from Shimadzu with an interface temperature of 300 °C and heating gas flow of 10 ...
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Comparative Analysis of Two Broad Range PCR Assays for Pathogen Detection in Positive Blood Culture Bottles: PCR–High Resolution Melting Analysis versus PCR Mass Spectrometry
... Electrospray ionization mass spectrometry. Amplicons were ana- lyzed using the Plex-ID automated mass spectrometry platform (Abbott Molecular). PCR products underwent an automated weak anion ex- change ...
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Metabolomic Analysis of Campylobacter jejuni by Direct-Injection Electrospray Ionization Mass Spectrometry
... direct-injection electrospray-ionisation mass spectrometry (ESI-MS), which we have used as a means of comparing wild-type and isogenic mutant strains of ...
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Concurrent Serotyping and Genotyping of Pneumococci by Use of PCR and Electrospray Ionization Mass Spectrometry
... A pneumococcal serotyping/genotyping system (PSGS) was developed based upon targeted PCR, followed by electrospray ion- ization mass spectrometry and amplicon base composition analysis. Eight multiplex PCRs, 32 ...
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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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Ambient DESI and LESA MS analysis of proteins adsorbed to a biomaterial surface using in situ surface tryptic digestion
... The mechanism of DESI-MS involves a charged droplet- pickup process in which a spray of ionized solvent is focused onto a surface using a nebulizer gas and the desorbed molecules are collected and detected within the ...
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Screening natural libraries of human milk oligosaccharides against lectins using CaR ESI MS
... Electrospray ionization mass spectrometry (ESI-MS) is an attractive alternative to glycan microarrays for screening carbohydrate libraries against lectins in vitro and is particularly well suited for the ...
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Native Desorption Electrospray Ionization Liberates Soluble and Membrane Protein Complexes from Surfaces
... ambient ionization methods described previously we note the addition of chemicals in the spray solution in reactive DESI applica- tions for small molecule ...
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Rapid Determination of Quinolone Resistance in Acinetobacter spp
... by electrospray ionization mass spectrometry (PCR/ESI-MS) and base composition analysis of PCR amplification products can quickly and accurately identify quinolone resistance mediated by mutations in the ...
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Development of electrospray ionization of biomolecules on a magnetic sector mass spectrometer
... ion mode ) where they can undergo oxidation under the high electric voltage. In this way, the negative counterions are removed from the solution and the formation of the droplets with excess positive charge occurred. In ...
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Photoelectrocatalytic Oxidation of Ethinylestradiol on a Ti/TiO2 Electrode: Degradation Efficiency and Search for By Products
... film electrode exposed to UV irradiation and applied potential. To assess the effectiveness of this method and to verify whether residual organic compounds could be formed under these conditions, a number of techniques ...
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Simultaneous quantification of proposed anti malarial combination comprising of lumefantrine and CDRI 97–78 in rat plasma using the HPLC–ESI MS/MS method: application to drug interaction study
... ion electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method was developed for the simultaneous determination of lumefantrine and CDRI 97-78 ’ s metabolite, 97 – 63, in rat plasma using ...
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Enhanced top down characterization of histone post translational modifications
... sion and is, therefore, incompatible with modern electro- spray ionization (ESI) interfaces typically used for high-throughput online analysis of protein mixtures. Recently, Young et al . successfully developed an ...
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Gas phase characterization of the noncovalent quaternary structure of Cholera toxin and the Cholera toxin B subunit pentamer
... conventional electrospray, operated in positive mode of ionization with a capillary voltage of 3 kV, and optimized for the trans- mission of noncovalent ...
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DEVELOPMENT AND VALIDATION OF METHOD FOR DETERMINATION OF LUTEIN BY HPLC
... Analytical methods for carotenoids in foods have previously been reviewed. [8-12] Direct solvent extraction is the preferred technique for samples with low lipid content or samples that are free of xanthophyll esters. ...
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