Zobrazeno 1 - 10
of 265
pro vyhledávání: '"W. W. Harrison"'
Autor:
W. W. Harrison, Kevin Turney
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 61:634-641
Matrix assisted laser desorption/ionization (MALDI) is studied at atmospheric pressure using liquid sampling methods. A time-of-flight mass spectrometer couples to an open sample stage accessed by a UV laser for desorption and ionization. Also couple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ef5fd4706b074e1a69b861c16e4475c
https://doi.org/10.1016/j.sab.2005.08.009
https://doi.org/10.1016/j.sab.2005.08.009
Publikováno v:
International Journal of Mass Spectrometry. 243:31-39
The novel application of a quadrupole ion trap mass spectrometer (QITMS) to permanent gas analysis was recently presented by our laboratory. The quantitative performance of the QITMS equaled or surpassed that of other mass analyzers evaluated; howeve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::778cb532f3834ee5372f3c10ace48294
https://doi.org/10.1016/j.ijms.2004.12.005
https://doi.org/10.1016/j.ijms.2004.12.005
Publikováno v:
Rapid Communications in Mass Spectrometry. 16:681-685
We have designed and constructed an atmospheric pressure laser desorption/chemical ionization (AP-LD/CI) source that utilizes a laser pulse to desorb intact neutral molecules, followed by chemical ionization via reagent ions produced by a corona disc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f68f87913089883c3b48bdb5f6169089
https://doi.org/10.1002/rcm.626
https://doi.org/10.1002/rcm.626
Publikováno v:
Journal of Analytical Atomic Spectrometry. 16:1131-1134
The already established technique of pulsed glow discharge spectroscopy is extended in these studies to the application of a second pulse applied at a variable delay after a first pulse. The net discharge then consists of a series of double pulses in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3fde7f41ab3fcf8bdbcfcd8781685c7
https://doi.org/10.1039/b100674f
https://doi.org/10.1039/b100674f
Publikováno v:
Journal of Analytical Atomic Spectrometry. 16:819-824
The effects of discharge conditions on the temporal profiles of sputtered atoms and gas species in a microsecond (µs) pulsed glow discharge (GD) plasma were investigated. A sequential scanning monochromator accompanied with a gated detection system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5109e9b77d6e20804900e468f7b9fc0
https://doi.org/10.1039/b100899o
https://doi.org/10.1039/b100899o
Publikováno v:
Journal of Analytical Atomic Spectrometry. 15:1279-1284
A high voltage, microsecond regime, pulsed glow discharge has been applied to a standard Grimm type source on a LECO SA-2000 multichannel optical spectrometer. The spectrometer system has been equipped with fast time-resolved electronics in order to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5567bbae1e97732a7ceab35ec5493d27
https://doi.org/10.1039/b003204m
https://doi.org/10.1039/b003204m
Publikováno v:
Journal of Analytical Atomic Spectrometry. 15:1241-1245
The development of microsecond pulsed glow discharge atomic emission spectrometry (GD-AES) for quantitative depth profile analysis is described. The quantification method, which is based on sputtering rates, has been previously applied to depth analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aad985f861b264335f6403e5021573c
https://doi.org/10.1039/b001969k
https://doi.org/10.1039/b001969k
Publikováno v:
Journal of Analytical Atomic Spectrometry. 15:1255-1260
A Grimm-type glow discharge ion source has been constructed for a time-of-flight mass spectrometer (TOF-MS). This source was operated in the microsecond-pulsed mode. Special features of pulsed Grimm GD-TOF-MS are described, including resolving power,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8474ea0b3cb56f20cb7bf84989101dd2
https://doi.org/10.1039/b001970o
https://doi.org/10.1039/b001970o
Publikováno v:
Journal of Analytical Atomic Spectrometry. 15:73-78
Investigations have been performed using microsecond pulsed glow discharge atomic emission spectrometry (GD-AES) to determine the effect of the glow discharge parameters, including applied pulse voltage, pulse width, pulse frequency and gas pressure,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::575c4d34cddb392c900cacbe600e35a5
https://doi.org/10.1039/a906552k
https://doi.org/10.1039/a906552k
Publikováno v:
Analytical Chemistry. 71:3231-3237
The fundamental requirements for the optimum mechanical interface between a glow discharge ion source and a mass spectrometer are described in this paper. Specifically, the properties of a typical glow discharge ion source are compared and contrasted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d84b1683f71c64b4edb44a0676d42fad
https://doi.org/10.1021/ac9810922
https://doi.org/10.1021/ac9810922