Zobrazeno 1 - 10
of 16
pro vyhledávání: '"G. J. Van Berkel"'
Autor:
Douglas C. Duckworth, G. J. Van Berkel, J. J. DeGange, P. Cable-Dunlap, L. S. Nichols, S. H. Park
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 263:177-181
The International Monitoring System is part of the global verification system of the Comprehensive Nuclear-Test-Ban Treaty and comprises an atmospheric radioactivity monitoring network of 80 particulate stations, 40 of which are to be equipped with n
Autor:
G. J. Van Berkel, Feimeng Zhou
Publikováno v:
Analytical Chemistry. 67:3958-3964
In this paper an electrospray ion source is shown to be a controlled-current electrolytic flow cell which, when operated so that three key requirements are met, can be used for efficient neutral analyte ionization (i.e., complete analyte electrolysis
Autor:
G. J. Van Berkel, Feimeng Zhou
Publikováno v:
Analytical Chemistry. 67:2916-2923
An electrospray (ES) ion source is described as a constant or controlled-current device for which the magnitude of the ES current is controlled by the rate of charged droplet production. Thus, the nature of the electrolytic process that occurs in the
Publikováno v:
Analytical Chemistry. 66:737A-743A
The quadrupole ion trap, operated with a relatively high-pressure bath gas, occupies a unique place among mass analyzers. As an ion storage device, it shares many characteristics with the ICR instrument, but the use of a light bath gas and mass-selec
Publikováno v:
Analytical Chemistry. 66:1302-1315
Derivatization strategies and specific derivatization reactions for conversion of simple alkyl halides, alcohols, phenols, thiols, and amines to ionic or solution-ionizable derivatives, that is [open quotes]electrospray active[close quotes] (ES-activ
Determination of pyrimidine cyclobutane dimers by electrospray ionization/ion trap mass spectrometry
Publikováno v:
Biological Mass Spectrometry. 21:347-352
A straightforward approach for determining the cyclobutane pyrimidine dimers, thymine-thymine, uracil-thymine, and uracil-uracil, based upon electrospray ionization/ion trap mass spectrometry is described. These compounds are detected as the sodiated
Autor:
Douglas C. Duckworth, JM Keller, G. J. Van Berkel, WK Adeniyi, Feimeng Zhou, Shelby J. Morton
Anodic and adsorptive stripping voltammetry (AWV and AdSV, respectively) were performed on-line with a mercury thin-film electrode (MTFE) to effect the selective accumulation and detection of thallium and uranium, respectively. ASV-ICP-MS experiments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::283e8c153cca4ca52832ada9f540af2e
https://doi.org/10.1520/stp15982s
https://doi.org/10.1520/stp15982s
Autor:
G J, Van Berkel
Publikováno v:
Journal of mass spectrometry : JMS. 35(7)
The electrospray ion source is an electrolytic flow cell. Electrolytic reactions in the electrospray emitter maintain the production of charged droplets by this ion source that contain an excess of ions of one polarity. These redox reactions necessar
Publikováno v:
Analytical chemistry. 72(11)
Electrochemically modulated liquid chromatography (EMLC) has been coupled to an electrospray mass spectrometer. This combination takes advantage of the ability of EMLC to manipulate retention and enhance separation efficiency solely through changes i
Publikováno v:
Analytical chemistry. 72(9)
Demonstrated for the first time is the use of electrochemically modulated preconcentration and sample matrix elimination combined on-line with electrospray mass spectrometry (EMPM/ES-MS) for the enhanced analysis of organics by ES-MS. EMPM is similar