Flowing afterglow
WebFeb 1, 2015 · The flowing afterglow technique incorporates several valuable features that allowed it to revolutionize studies of ion chemistry: (1) The quadrupole mass filter provides definitive identification of the reactant and product ions. (2) The ion formation and reaction regions are spatially and temporally separated. The reactant ions are ... A flowing afterglow is an ion source that is used to create ions in a flow of inert gas, typically helium or argon. Flowing afterglow ion sources usually consist of a dielectric discharge that gases are channeled through to be excited and thus made into plasma. Flowing afterglow ion sources can be coupled with a selected-ion flow-tube for selection of reactant ions. When this ion source is coupled with mass spectrometry it is referred to as flowing afterglow mass spectrometry.
Flowing afterglow
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WebHere, the atmospheric-pressure glow discharge (APGD) and afterglow of a helium flowing atmospheric-pressure afterglow (FAPA) ionization source were examined by optical … WebMar 20, 2024 · The appearance of a flowing afterglow with a dip in light emission followed by a maximum, as shown in Fig. 3, is in close resemblance of the data reported on the …
WebApr 6, 2016 · The flowing configuration of argon DC discharge with oxygen admixture was used for this experimental study. The experimental set-up was already used for our … WebA flowing afterglow system has been used to measure the gas-phase, thermal-energy rate constants for reactions between a variety of ions and water-vapour molecules at 300K. A method of measuring water-vapour flow-rates has been developed which may be readily extended to other vapours. Rate constants, together with
WebApr 20, 2024 · We describe the plasma chemistry in a helium flowing atmospheric pressure afterglow (FAPA) used for analytical spectrometry, by means of a quasi-one … WebApr 14, 2024 · Get FLOW feat.Afterglow setlists - view them, share them, discuss them with other FLOW feat.Afterglow fans for free on setlist.fm!
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WebJul 1, 1995 · @article{osti_223681, title = {Kinetics of chemical reactions of methane in the flowing afterglow of a dinitrogen microwave plasma}, author = {Legrand, J C and Diamy, A M and Hrach, R}, abstractNote = {The reaction of methane in the afterglow is studied by combination of computer experiments and direct measurements. Methane conversion is … how many minutes until 10WebJul 27, 2024 · Here, a reactive flowing atmospheric-pressure afterglow (reactive-FAPA) AMS source is developed for rapid isomer differentiation by derivatization of analytes in real time. The effects of the reactive-FAPA operating conditions on the reagent and product ions were studied and optimized for highly volatile and non-volatile model compounds with ... how many minutes until 10:25WebApr 20, 2024 · We describe the plasma chemistry in a helium flowing atmospheric pressure afterglow (FAPA) used for analytical spectrometry, by means of a quasi-one-dimensional (1D) plasma chemical kinetics model. We study the effect of typical impurities present in the feed gas, as well as the afterglow in ambient humid air. The model provides the species … how many minutes until 10:05WebThe synthesis and characterization of carbene, nitrene, carbyne and biradical negative ions were studied using the flowing afterglow-triple quadrupole apparatus. These include the negative ions of phenylcarbene, 3-ethoxyphenylnitrene, phenylcarbyne and 2,4-dimethylenecyclobutane-1,3-diyl, respectively. Various experimental gas-phase acidities, … how are you doing antwortenWebMay 4, 2006 · We present the optimization of a sterilization process with a N 2 flowing afterglow post-discharge. First we study the inactivation of bacteria (E. coli) submitted to the post-discharge, and discuss the mechanisms of bacteria inactivation. Then we evaluate the volume repartition of the active species (N atoms produced by plasma discharge) in ... how are you doing beautiful in spanishWebAbstract. The experimental technology of the flowing afterglow technique, including data analysis procedures, has very recently been described in great detail. (1) The present … how are you different nowWebPublisher Summary. This chapter describes the experimental and analytical techniques that have been developed for flowing afterglow applications to the quantitative study of … how are you different from chat gpt